Fabrication and Micro/Nano Structure Control of High Entropy Alloys by Advanced Processing

• Project Area: High Entropy Alloys - Science of New Class of Materials Based on Elemental Multiplicity and Heterogeneity
• Project/Area Number: 18H05455
• Research Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Kyoto University
• Principal Investigator: 辻 伸泰 京都大学, 工学研究科, 教授 (30263213)
• Co-Investigator(Kenkyū-buntansha): 千葉 晶彦 東北大学, 金属材料研究所, 教授 (00197617) ; 飴山 惠 立命館大学, 理工学部, 教授 (10184243) ; 安田 秀幸 京都大学, 工学研究科, 教授 (60239762)
• Project Period (FY): 2018-06-29 – 2023-03-31
• Project Status: Granted (Fiscal Year 2022)
• Budget Amount: ¥186,810,000 (Direct Cost: ¥143,700,000、Indirect Cost: ¥43,110,000); Fiscal Year 2022: ¥38,090,000 (Direct Cost: ¥29,300,000、Indirect Cost: ¥8,790,000); Fiscal Year 2021: ¥38,220,000 (Direct Cost: ¥29,400,000、Indirect Cost: ¥8,820,000); Fiscal Year 2020: ¥35,620,000 (Direct Cost: ¥27,400,000、Indirect Cost: ¥8,220,000); Fiscal Year 2019: ¥32,240,000 (Direct Cost: ¥24,800,000、Indirect Cost: ¥7,440,000); Fiscal Year 2018: ¥42,640,000 (Direct Cost: ¥32,800,000、Indirect Cost: ¥9,840,000)
• Keywords: 組織制御 / プロセス / 凝固 / 粉末冶金 / 3Dプリンティング / ３Dプリンティング / X線CT / 超微細粒 / 調和組織 / 粉末治金

Outline of Annual Research Achievements

多成分状態図の中央近傍の化学組成を持つハイエントロピー合金は、高温でのエントロピー効果や多種類に及ぶ各元素間の引力/斥力相互作用、遅い原子拡 散、大きな格子ひずみといった特徴が複雑に作用して、凝固時及びその後の加工・熱処理中に、従来金属・合金とは大きく異なるミクロ組織形成を生じると考え られる。本計画研究は、凝固・鋳造、加工熱処理、粉末冶金、3D プリンティングという、4種類の重要プロセスを通じてハイエントロピー合金のナノ・ミクロ組 織やマクロ形態の制御を行い、ハイエントロピー合金特有の組織形成過程と機構を明らかにするとともに、ナノ・ミクロ組織と種々の特性の相関関係を明らかに して、望ましい特性の合金を作製するためのプロセス指針を獲得することを目的とする。
2020年度は、前年度までに構築した研究基盤や手法・知見を活用して、京大・辻、京大・安田、立命大・飴山、東北大・千葉が、それぞれ加工・熱処理、凝固・鋳造、粉末冶 金、3D プリンティングの各プロセスを担当し、各研究室の研究協力者、ポスドク、大学院生とともに、研究室間の緊密な連携を取りつつ研究を推進した。また新学術領域内の他班・公募班研究者との連携研究も拡大した。J- PARC・ハルヨは研究協力者として加工熱処理中の中性子その場回折実験を補助した。領域全体に共通試料やデータを提供することによって、ハイエントロピー合 金に関する新学術の創成に寄与するとともに、ハイエントロピー合金の実用化を見通した基礎的知見の蓄積を行なった。前年度までに得られた知見を元にFCC単相構造を有するハイエントロピー合金の組織解析・特製解明に関する研究をさらに深化・発展させるとともに、高温材料として期待される高融点BCCハイエント ロピー合金の研究を展開した。

Current Status of Research Progress

1: Research has progressed more than it was originally planned.

Reason

2020年度は、以下の研究成果を得た。(1)安田グループと辻グループの共同研究により、HfNbTaTiZr合金の派生形である５種類の等モル四元系BCC単相合金における凝固偏析の形成およびその機械的性質に及ぼす影響を明らかにした。(2)独自に設計したBCCマトリクスを有する析出強化型RHEAを対象に、粉砕法とGA法の2種類の方法でEBM造形用の粉末を作製した。(3)TiNbZrHfTa高エントロピー合金のメカニカルアロイングによる作製を試み、BCC相中に析出するわずかなα相が高強度化に寄与する可能性が見出された。(4)時間分解X線イメージング・X線回折、その場蛍光X線分析を用いて、CrMnFeCoNi系における等モル組成を含む擬二元系の凝固パスを決定するとともに、測定データから構成元素の固液間の分配に関する近似式を導出した。またCrFeCoNi四元系においてコングルーエントに近い組成を見いだした。得られた成果を、１件の図書（ハイエントロピー合金に関する初めての和書）、59件の学術雑誌論文、5件の招待講演、15件の国際会議発表、46件の国内学会発表として公表した。発表した学術雑誌論文は、Nature Communications誌（IF=12.121）1件、Science Advances誌（IF=13.117）１件、Acta Materialia誌（IF=7.656）7件、 Scripta Materialia誌（IF=5.079）4件などを含む。参画する各研究室の多くの学生と若手ポスドク研究員がハイエントロピー合金に関する研究を行い、先端的な研究を通じて若手人材育成にも貢献できた。 以上のように、当初予定通りに各プロセスを用いたハイエントロピー合金研究が順調に進展し、予想以上に多くの論文および学会発表として成果を発表できて おり、当初の計画以上に研究が進展している。

Strategy for Future Research Activity

京大・辻、京大・安田、立命大・飴山、東北大・千葉が、それぞれ加工・熱処理、凝固・鋳造、粉末冶金、3D プリンティングの各プロセスを担当し、研究室間 の緊密な連携を取りつつ研究を推進する。領域全体に共通試料やデータを提供することによって、ハイエントロピー合金に関する新学術の創成に寄与するととも に、ハイエントロピー合金の実用化を展望した基礎的知見の蓄積を行う。第2年度までに各プロセスで得られた結果をさらに発展させるとともに、プロセス(研 究室)間で情報を交換し、共通する内容の討論を進化させて、ハイエントロピー合金の組織・特性制御をより包括的に明らかにしてゆく。
2021年度は、前年度それぞれが獲得した成果をもとに、それぞれの研究室で各プロセスの高度化と最適化を行うとともに、複数のハイエントロピー合金を用いた実験を深化させ、各結晶構造・相構成ごとのナノ・ミクロ組織形成機構の違いや、基本的力学特性、さらには組織と力学特性の間の相互作用を明らかにする。具体的には、(1)時間分解X線イメージング・X線回折などの手法を駆使した凝固過程の解明、(2)様々な系・種類のハイエントロピー合金の組織超微細化と力学特性への影響の解明、(3)新規ハイエントロピー合金の調和組織化とその変形機構の解明、(4)様々なBCC系ハイエントロピー合金の３Dプリンティングの展開、などを実施する。計画研究内の５つの研究室（グループ）間の共同研究を増加させ、計画班一体となって、種々のプロセスによるハイエントロピー合金のナノ・ミクロ組織およびマクロ形態制御の学理を確立する。また、領域内の異なる計画班および新規採択分を含む公募班との連携・共同研究をさらに発展させる。

Research Products

• [Int'l Joint Research] インド工科大学ハイデラバード校/インド科学大学(インド)
• [Int'l Joint Research] デンマーク工科大学(デンマーク)
• [Int'l Joint Research] スイス連邦工科大学ローザンヌ校(スイス)
• [Int'l Joint Research] ルンド大学(スウェーデン)
• [Int'l Joint Research] POSTECH/嶺南大学(韓国)
• [Int'l Joint Research]
• [Int'l Joint Research] インド工科大学ハイデラバード校/インド科学大学(インド)
• [Int'l Joint Research] デンマーク工科大学(デンマーク)
• [Int'l Joint Research] スイス連邦工科大学ローザンヌ校(スイス)
• [Int'l Joint Research] ルンド大学(スウェーデン)
• [Int'l Joint Research] POSTECH/嶺南大学(韓国)
• [Int'l Joint Research]
• [Int'l Joint Research] デンマーク工科大学(デンマーク)
• [Int'l Joint Research] 東北大学(中国)
• [Int'l Joint Research] 嶺南大学(韓国)
• [Int'l Joint Research] インド工科大学ハイデラバード校/インド科学大学（バンガロール）(インド)
• [Journal Article] Heterostructured materials: superior properties from hetero-zone interaction (2021)
  • Author(s): Yuntian Zhu*, Kei Ameyama, Peter M. Anderson, Irene J. Beyerlein, Huajian Gao, Hyoung Seop Kim, Enrique Lavernia, Suveen Mathaudhu, Hael Mughrabi, Robert O. Ritchie, Nobuhiro Tsuji, Xiangyi Zhang, and Xiaolei Wu
  • Journal Title: Materials Research Letters Volume: 9 Pages: 1-31
  • NAID: 120006898130
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Mesoscopic nature of serration behavior in high-Mn austenitic steel (2021)
  • Author(s): Hwang Sukyoung、Park Myeong-heom、Bai Yu、Shibata Akinobu、Mao Wenqi、Adachi Hiroki、Sato Masugu、Tsuji Nobuhiro
  • Journal Title: Acta Materialia Volume: 205 Pages: 116543-116543
  • DOI: 10.1016/j.actamat.2020.116543
  • NAID: 120006950592
  • Peer Reviewed / Open Access
• [Journal Article] Achieving large super-elasticity through changing relative easiness of deformation modes in Ti-Nb-Mo alloy by ultra-grain refinement (2021)
  • Author(s): Zhang Bingjie、Huang Mingda、Chong Yan、Mao Wenqi、Gong Wu、Zheng Ruixiao、Bai Yu、Wang Dong、Sun Qiaoyan、Wang Yunzhi、Tsuji Nobuhiro
  • Journal Title: Materials Research Letters Volume: 9 Pages: 223-230
  • DOI: 10.1080/21663831.2021.1875080
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Mechanical response of dislocation interaction with grain boundary in ultrafine-grained interstitial-free steel (2021)
  • Author(s): Li Hongxing、Gao Si、Tomota Yo、Ii Seiichiro、Tsuji Nobuhiro、Ohmura Takahito
  • Journal Title: Acta Materialia Volume: 206 Pages: 116621-116621
  • DOI: 10.1016/j.actamat.2021.116621
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Effects of rolling reduction and direction on fatigue crack propagation in commercially pure titanium with harmonic structure (2021)
  • Author(s): Y. Nakai , S. Kikuchi, K. Osaki, M.O. Kawabata, and K. Ameyama
  • Journal Title: International Journal of Fatigue Volume: 143 Pages: 106018-106018
  • DOI: 10.1016/j.ijfatigue.2020.106018
  • Peer Reviewed / Open Access
• [Journal Article] Effect of mechanical milling on the harmonic structure development during spark plasma sintering of Ti-5Al-2Sn-4Zr-4Mo-2Cr-1Fe β-metastable titanium alloy (β-Cez alloy) (2021)
  • Author(s): Sharma Bhupendra、Denand Beno?t、Harcuba Petr、Geandier Guillaume、Ameyama Kei、Dirras Guy、Aeby-Gautier Elisabeth
  • Journal Title: Journal of Alloys and Compounds Volume: 860 Pages: 158483-158483
  • DOI: 10.1016/j.jallcom.2020.158483
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Effect of stacking fault energy on deformation mechanisms in Cu and Cu-30% Zn alloy with gradient structure obtained by SMAT (2021)
  • Author(s): Liu Xiaomin、Nakatani Masashi、Gao Hongliang、Sharma Bhupendra、Pan Hongjiang、Fu Zhengrong、Li Xingfu、Ameyama Kei、Zhu Xinkun
  • Journal Title: Journal of Alloys and Compounds Volume: 865 Pages: 158863-158863
  • DOI: 10.1016/j.jallcom.2021.158863
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Stacking Fault Driven Phase Transformation in CrCoNi Medium Entropy Alloy (2021)
  • Author(s): He Haiyan、Naeem Muhammad、Zhang Fan、Zhao Yilu、Harjo Stefanus、Kawasaki Takuro、Wang Bing、Wu Xuelian、Lan Si、Wu Zhenduo、Yin Wen、Wu Yuan、Lu Zhaoping、Kai Ji-Jung、Liu Chain-Tsuan、Wang Xun-Li
  • Journal Title: Nano Letters Volume: 21 Pages: 1419-1426
  • DOI: 10.1021/acs.nanolett.0c04244
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] 調和組織制御と加工熱処理を組み合わせた高強度・高延性チタンの開発 (2021)
  • Author(s): ,飴山 惠
  • Journal Title: チタン Volume: 69 Pages: 42-47
  • NAID: 40022476221
  • Peer Reviewed
• [Journal Article] Strategy for managing both high strength and large ductility in structural materials-sequential nucleation of different deformation modes based on a concept of plaston (2020)
  • Author(s): Tsuji Nobuhiro、Ogata Shigenobu、Inui Haruyuki、Tanaka Isao、Kishida Kyosuke、Gao Si、Mao Wenqi、Bai Yu、Zheng Ruixiao、Du Jun-Ping
  • Journal Title: Scripta Materialia Volume: 181 Pages: 35-42
  • DOI: 10.1016/j.scriptamat.2020.02.001
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Effect of Elemental Combination on Microstructure and Mechanical Properties of Quaternary Refractory Medium Entropy Alloys (2020)
  • Author(s): He Qian、Yoshida Shuhei、Yasuda Hideyuki、Tsuji Nobuhiro
  • Journal Title: MATERIALS TRANSACTIONS Volume: 61 Issue: 4 Pages: 577-586
  • DOI: 10.2320/matertrans.mt-mk2019003 10.2320/matertrans.MT-MK2019003
  • NAID: 130007815363
  • ISSN: 1345-9678, 1347-5320
  • Peer Reviewed / Open Access
• [Journal Article] Effect of Cobalt-Content on Mechanical Properties of Non-Equiatomic Co–Cr–Ni Medium Entropy Alloys (2020)
  • Author(s): Yoshida Shuhei、Ikeuchi Takuto、Bai Yu、Tsuji Nobuhiro
  • Journal Title: MATERIALS TRANSACTIONS Volume: 61 Issue: 4 Pages: 587-595
  • DOI: 10.2320/matertrans.mt-mk2019004 10.2320/matertrans.MT-MK2019004
  • NAID: 130007815365
  • ISSN: 1345-9678, 1347-5320
  • Peer Reviewed
• [Journal Article] Plastic strain-induced sequential martensitic transformation (2020)
  • Author(s): Wei Shaolou、Kim Jinwoo、Cann Jaclyn Leigh、Gholizadeh Reza、Tsuji Nobuhiro、Tasan Cemal Cem
  • Journal Title: Scripta Materialia Volume: 185 Pages: 36-41
  • DOI: 10.1016/j.scriptamat.2020.03.060
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Yield strength and misfit volumes of NiCoCr and implications for short-range-order (2020)
  • Author(s): Yin Binglun、Yoshida Shuhei、Tsuji Nobuhiro、Curtin W. A.
  • Journal Title: Nature Communications Volume: 11 Pages: 2507-2507
  • DOI: 10.1038/s41467-020-16083-1
  • NAID: 120006898129
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Transition of dominant deformation mode in bulk polycrystalline pure Mg by ultra-grain refinement down to sub-micrometer (2020)
  • Author(s): R. Zheng, J. P. Du, S. Gao, H. Somekawa, S. Ogata, N. Tsuji
  • Journal Title: Acta Materialia Volume: 198 Pages: 35-46
  • DOI: 10.1016/j.actamat.2020.07.055
  • NAID: 120006888479
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Enhanced mechanical properties in β-Ti alloy aged from recrystallized ultrafine β grains (2020)
  • Author(s): Zhang Bingjie、Chong Yan、Zheng Ruixiao、Bai Yu、Gholizadeh Reza、Huang Mingda、Wang Dong、Sun Qiaoyan、Wang Yunzhi、Tsuji Nobuhiro
  • Journal Title: Materials & Design Volume: 195 Pages: 109017-109017
  • DOI: 10.1016/j.matdes.2020.109017
  • NAID: 120006898128
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Tensile Deformation of Ultrafine-Grained Fe-Mn-Al-Ni-C Alloy Studied by In Situ Synchrotron Radiation X-ray Diffraction (2020)
  • Author(s): Gao Si、Yoshimura Takuma、Mao Wenqi、Bai Yu、Gong Wu、Park Myeong-heom、Shibata Akinobu、Adachi Hiroki、Sato Masugu、Tsuji Nobuhiro
  • Journal Title: Crystals Volume: 10 Pages: 1115-1115
  • DOI: 10.3390/cryst10121115
  • Peer Reviewed / Open Access
• [Journal Article] Microstructure and Mechanical Behavior of Ti–25Nb–25Zr Alloy Prepared from Pre-Alloyed and Hydride-Mixed Elemental Powders (2020)
  • Author(s): Sharma Bhupendra、Vajpai Sanjay Kumar、Kawabata Mie、Nakano Takayoshi、Ameyama Kei
  • Journal Title: MATERIALS TRANSACTIONS Volume: 61 Issue: 4 Pages: 562-566
  • DOI: 10.2320/matertrans.mt-mk2019001 10.2320/matertrans.MT-MK2019001
  • NAID: 130007815380
  • ISSN: 1345-9678, 1347-5320
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Application of Hydride Process in Achieving Equimolar TiNbZrHfTa BCC Refractory High Entropy Alloy (2020)
  • Author(s): Sharma Bhupendra、Nagano Kentaro、Saxena Kuldeep Kumar、Fujiwara Hiroshi、Ameyama Kei
  • Journal Title: Crystals Volume: 10 Pages: 1020-1020
  • DOI: 10.3390/cryst10111020
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Fabrication of SUS316L Harmonic Structure Compacts by Bi-Modal Milling Process (2020)
  • Author(s): 八木洸紀, Bhupendra Sharma, 川畑美絵, 飴山惠
  • Journal Title: J. Jpn. Soc. Powder Powder Metallurgy Volume: 67 Issue: 5 Pages: 239-244
  • DOI: 10.2497/jjspm.67.239
  • NAID: 130007842695
  • ISSN: 0532-8799, 1880-9014
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Influence of Strain Rate on Mechanical Behaviours of Gradient-Structured Copper (2020)
  • Author(s): Zhang Jinxu、Cao Yang、Gao Hongliang、Yang Xu、Shu Baipo、Zhu Yuntian、Sharma Bhupendra、Ameyama Kei、Zhu Xinkun
  • Journal Title: MATERIALS TRANSACTIONS Volume: 61 Issue: 4 Pages: 708-717
  • DOI: 10.2320/matertrans.mt-m2019373 10.2320/matertrans.MT-M2019373
  • NAID: 130007815372
  • ISSN: 1345-9678, 1347-5320
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The effects of thermo-mechanical processing on fatigue crack propagation in commercially pure titanium with a harmonic structure (2020)
  • Author(s): Osaki Kohei、Kikuchi Shoichi、Nakai Yoshikazu、Kawabata Mie Ota、Ameyama Kei
  • Journal Title: Materials Science and Engineering A Volume: 773 Pages: 138892-138892
  • DOI: 10.1016/j.msea.2019.138892
  • Peer Reviewed / Open Access
• [Journal Article] Extra-strengthening in a harmonic structure designed pure titanium due to preferential recrystallization phenomenon through thermomechanical treatment (2020)
  • Author(s): Sharma Bhupendra、Miyakoshi Motoki、Vajpai Sanjay Kumar、Dirras Guy、Ameyama Kei
  • Journal Title: Materials Science and Engineering: A Volume: 797 Pages: 140227-140227
  • DOI: 10.1016/j.msea.2020.140227
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Harmonic-structure materials: idea, status and perspectives (2020)
  • Author(s): Orlov Dmytro、Ameyama Kei
  • Journal Title: Materials Science and Technology Volume: 36 Pages: 517-526
  • DOI: 10.1080/02670836.2020.1719306
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A superior strength-ductility combination in gradient structured Cu-Al-Zn alloys with proper stacking fault energy and processing time (2020)
  • Author(s): Yang Xu、Zhang Jinxu、Gong Yulan、Nakatani Masashi、Sharma Bhupendra、Ameyama Kei、Zhu Xinkun
  • Journal Title: Materials Science and Engineering: A Volume: 789 Pages: 139619-139619
  • DOI: 10.1016/j.msea.2020.139619
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Investigation on the Durability of Ti-6Al-4V Alloy Designed in a Harmonic Structure via Powder Metallurgy: Fatigue Behavior and Specimen Size Parameter Issue (2020)
  • Author(s): Guennec Benjamin、Ishiguri Takayuki、Kawabata Mie Ota、Kikuchi Shoichi、Ueno Akira、Ameyama Kei
  • Journal Title: Metals Volume: 10 Pages: 636-636
  • DOI: 10.3390/met10050636
  • Peer Reviewed / Open Access
• [Journal Article] Harmonic Structure Design: A Strategy for Outstanding Mechanical Properties in Structural Materials (2020)
  • Author(s): Sharma Bhupendra、Dirras Guy、Ameyama Kei
  • Journal Title: Metals Volume: 10 Pages: 1615-1615
  • DOI: 10.3390/met10121615
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Microstructure and Mechanical Properties of a Harmonic Structure Designed Fe-0.3 mass%C Steel (2020)
  • Author(s): 入谷竜平、堀憲太、Bhupendra Sharma、川畑美絵、Guy Dirras、古原忠、飴山惠
  • Journal Title: Journal of the Iron and Steel Institute of Japan Volume: 106 Issue: 10 Pages: 735-744
  • DOI: 10.2355/tetsutohagane.tetsu-2020-007 10.2355/tetsutohagane.TETSU-2020-007
  • NAID: 130007919127
  • ISSN: 0021-1575, 1883-2954
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Corrosion mechanism of an equimolar AlCoCrFeNi high-entropy alloy additively manufactured by electron beam melting (2020)
  • Author(s): Kenta Yamanaka, Hiroshi Shiratori, Manami Mori, Kazuyo Omura, Tadashi Fujieda, Kosuke Kuwabara, Akihiko Chiba
  • Journal Title: npj Materials Degradation Volume: 4 Pages: 24-24
  • DOI: 10.1038/s41529-020-00127-4
  • Peer Reviewed / Open Access
• [Journal Article] Influence of interatomic interactions on the mechanical properties of face-centered cubic multicomponent Co-Ni-Cr-Mo alloys (2020)
  • Author(s): Jiaxiang Li, Kenta Yamanaka, Akihiko Chiba
  • Journal Title: Materialia Volume: 12 Pages: 100742-100742
  • DOI: 10.1016/j.mtla.2020.100742
  • Peer Reviewed
• [Journal Article] Microstructure refinement for superior ductility of Al-Si alloy by electron beam melting (2020)
  • Author(s): Bian Huakang、Aoyagi Kenta、Zhao Yufan、Maeda Chikatoshi、Mouri Toshihiro、Chiba Akihiko
  • Journal Title: Additive Manufacturing Volume: 32 Pages: 100982-100982
  • DOI: 10.1016/j.addma.2019.100982
  • Peer Reviewed
• [Journal Article] Significance of powder feedstock characteristics in defect suppression of additively manufactured Inconel 718 (2020)
  • Author(s): Zhao Yufan、Aoyagi Kenta、Daino Yohei、Yamanaka Kenta、Chiba Akihiko
  • Journal Title: Additive Manufacturing Volume: 34 Pages: 101277-101277
  • DOI: 10.1016/j.addma.2020.101277
  • Peer Reviewed
• [Journal Article] Manufacturing of a nanosized TiB strengthened Ti-based alloy via electron beam powder bed fusion (2020)
  • Author(s): Cui Yujie、Aoyagi Kenta、Zhao Yufan、Yamanaka Kenta、Hayasaka Yuichiro、Koizumi Yuichiro、Fujieda Tadashi、Chiba Akihiko
  • Journal Title: Additive Manufacturing Volume: 36 Pages: 101472-101472
  • DOI: 10.1016/j.addma.2020.101472
  • Peer Reviewed
• [Journal Article] Isothermal γ → ε phase transformation behavior in a Co-Cr-Mo alloy depending on thermal history during electron beam powder-bed additive manufacturing (2020)
  • Author(s): Zhao Yufan、Koizumi Yuichiro、Aoyagi Kenta、Yamanaka Kenta、Chiba Akihiko
  • Journal Title: Journal of Materials Science & Technology Volume: 50 Pages: 162-170
  • DOI: 10.1016/j.jmst.2019.11.040
  • Peer Reviewed
• [Journal Article] Enhanced oxidation resistance of a titanium-based alloy by the addition of boron and the application of electron beam melting (2020)
  • Author(s): Cui Yujie、Aoyagi Kenta、Koizumi Yuichiro、Fujieda Tadashi、Chiba Akihiko
  • Journal Title: Additive Manufacturing Volume: 31 Pages: 100971-100971
  • DOI: 10.1016/j.addma.2019.100971
  • Peer Reviewed
• [Journal Article] Fabricating 9-12 Cr ferritic/martensitic steels using selective electron beam melting (2020)
  • Author(s): Lee Tack、Bian Huakang、Aoyagi Kenta、Ohnishi Haruki、Hino Takehisa、Nakatani Yujiro、Chiba Akihiko
  • Journal Title: Materials Letters Volume: 271 Pages: 127747-127747
  • DOI: 10.1016/j.matlet.2020.127747
  • Peer Reviewed
• [Journal Article] Process optimization and mechanical property investigation of non-weldable superalloy Alloy713ELC manufactured with selective electron beam melting (2020)
  • Author(s): Lei Yuchao、Aoyagi Kenta、Cui Yujie、Kang Dong-Soo、Kuwabara Kosuke、Aota Kinya、Chiba Akihiko
  • Journal Title: Materials Science and Engineering: A Volume: 787 Pages: 139485-139485
  • DOI: 10.1016/j.msea.2020.139485
  • Peer Reviewed
• [Journal Article] Centrifugal granulation behavior in metallic powder fabrication by plasma rotating electrode process (2020)
  • Author(s): Zhao Yufan、Cui Yujie、Numata Haruko、Bian Huakang、Wako Kimio、Yamanaka Kenta、Aoyagi Kenta、Chiba Akihiko
  • Journal Title: Scientific Reports Volume: 10 Pages: 18446-18446
  • DOI: 10.1038/s41598-020-75503-w
  • Peer Reviewed / Open Access
• [Journal Article] Role of operating and environmental conditions in determining molten pool dynamics during electron beam melting and selective laser melting (2020)
  • Author(s): Zhao Yufan、Aoyagi Kenta、Yamanaka Kenta、Chiba Akihiko
  • Journal Title: Additive Manufacturing Volume: 36 Pages: 101559-101559
  • DOI: 10.1016/j.addma.2020.101559
  • Peer Reviewed
• [Journal Article] Effects of plasma rotating electrode process parameters on the particle size distribution and microstructure of Ti-6Al-4-V alloy powder (2020)
  • Author(s): Cui Yujie、Zhao Yufan、Numata Haruko、Bian Huakang、Wako Kimio、Yamanaka Kenta、Aoyagi Kenta、Zhang Chen、Chiba Akihiko
  • Journal Title: Powder Technology Volume: 376 Pages: 363-372
  • DOI: 10.1016/j.powtec.2020.08.027
  • Peer Reviewed
• [Journal Article] Characterization of Growing Dendrites in CrMnFeCoNi High-Entropy Alloy by Time-Resolved and <i>In-Situ</i> Tomography (2020)
  • Author(s): Nakano Keita、Narumi Taka、Morishita Kohei、Yasuda Hideyuki
  • Journal Title: MATERIALS TRANSACTIONS Volume: 61 Issue: 4 Pages: 596-604
  • DOI: 10.2320/matertrans.mt-mk2019006 10.2320/matertrans.MT-MK2019006
  • NAID: 130007815364
  • ISSN: 1345-9678, 1347-5320
  • Peer Reviewed / Open Access
• [Journal Article] Quantitative analysis of solidification of equiaxed grains in Al-Cu alloy refined by inoculant TiB₂ particles with using time-resolved X-ray tomography (2020)
  • Author(s): Narumi Taka、Kawarasaki Takuya、Kato Yuichi、Morishita Kouhei、Yasuda Hideyuki
  • Journal Title: J. Japan Inst. Light Metals Volume: 70 Issue: 8 Pages: 339-346
  • DOI: 10.2464/jilm.70.339
  • NAID: 130007904614
  • ISSN: 0451-5994, 1880-8018
  • Peer Reviewed / Open Access
• [Journal Article] <i>In-situ</i> Measurements of Solute Partition Coefficients between Solid and Liquid Phases in Fe–Cr–Ni–Mo–Cu Alloys during Solidification (2020)
  • Author(s): Kobayashi Yusuke、Dobara Kento、Todoroki Hidekazu、Nam Cheolhee、Morishita Kohei、Yasuda Hideyuki
  • Journal Title: ISIJ Int. Volume: 60 Issue: 2 Pages: 276-285
  • DOI: 10.2355/isijinternational.isijint-2019-444 10.2355/isijinternational.ISIJINT-2019-444
  • NAID: 130007799319
  • ISSN: 0915-1559, 1347-5460
  • Peer Reviewed / Open Access
• [Journal Article] Investigation of strengthening mechanism in Ni?38Cr-3.8Al alloy with fine lamellar structure by in situ neutron diffraction analysis (2020)
  • Author(s): Koyanagi Yoshihiko、Ueta Shigeki、Kawasaki Takuro、Harjo Stefanus、Cho Ken、Yasuda Hiroyuki Y.
  • Journal Title: Materials Science and Engineering: A Volume: 773 Pages: 138822-138822
  • DOI: 10.1016/j.msea.2019.138822
  • Peer Reviewed
• [Journal Article] Real time observation of martensite transformation for a 0.4C low alloyed steel by neutron diffraction (2020)
  • Author(s): Wang Yanxu、Tomota Yo、Ohmura Takahito、Morooka Satoshi、Gong Wu、Harjo Stefanus
  • Journal Title: Acta Materialia Volume: 184 Pages: 30-40
  • DOI: 10.1016/j.actamat.2019.11.051
  • Peer Reviewed
• [Journal Article] Role of retained austenite in low alloy steel at low temperature monitored by neutron diffraction (2020)
  • Author(s): Yamashita Takayuki、Morooka Satoshi、Harjo Stefanus、Kawasaki Takuro、Koga Norimitsu、Umezawa Osamu
  • Journal Title: Scripta Materialia Volume: 177 Pages: 6-10
  • DOI: 10.1016/j.scriptamat.2019.10.002
  • NAID: 120006781963
  • Peer Reviewed
• [Journal Article] On the phase transformation and dynamic stress-strain partitioning of ferrous medium-entropy alloy using experimentation and finite element method (2020)
  • Author(s): Bae Jae Wung、Jung Jaimyun、Kim Jung Gi、Park Jeong Min、Harjo Stefanus、Kawasaki Takuro、Woo Wanchuck、Kim Hyoung Seop
  • Journal Title: Materialia Volume: 9 Pages: 100619-100619
  • DOI: 10.1016/j.mtla.2020.100619
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Cooperative deformation in high-entropy alloys at ultralow temperatures (2020)
  • Author(s): Naeem Muhammad、He Haiyan、Zhang Fan、Huang Hailong、Harjo Stefanus、Kawasaki Takuro、Wang Bing、Lan Si、Wu Zhenduo、Wang Feng、Wu Yuan、Lu Zhaoping、Zhang Zhongwu、Liu Chain T.、Wang Xun-Li
  • Journal Title: Science Advances Volume: 6
  • DOI: 10.1126/sciadv.aax4002
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Comparison of dislocation density, twin fault probability, and stacking fault energy between CrCoNi and CrCoNiFe medium entropy alloys deformed at 293 and 140K (2020)
  • Author(s): Woo Wanchuck、Naeem Muhammad、Jeong Jae-Suk、Lee Cheol-Min、Harjo Stefanus、Kawasaki Takuro、He Haiyan、Wang Xun-Li
  • Journal Title: Materials Science and Engineering A Volume: 781 Pages: 139224-139224
  • DOI: 10.1016/j.msea.2020.139224
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Influence of carbon concentration and magnetic transition on the austenite lattice parameter of 30Mn-C steel (2020)
  • Author(s): Tomota Y.、Murakami T.、Wang Y.X.、Ohmura T.、Harjo S.、Su Y.H.、Shinohara T.
  • Journal Title: Materials Characterization Volume: 163 Pages: 110243-110243
  • DOI: 10.1016/j.matchar.2020.110243
  • Peer Reviewed
• [Journal Article] Continuous and discontinuous yielding behaviors in ferrite-cementite steels (2020)
  • Author(s): Wang Yanxu、Tomota Yo、Ohmura Takahito、Gong Wu、Harjo Stefanus、Tanaka Masahiko
  • Journal Title: Acta Materialia Volume: 196 Pages: 565-575
  • DOI: 10.1016/j.actamat.2020.07.017
  • Peer Reviewed
• [Journal Article] Neutron diffraction monitoring of ductile cast iron under cyclic tension-compression (2020)
  • Author(s): Harjo Stefanus、Kubota Satoru、Gong Wu、Kawasaki Takuro、Gao Si
  • Journal Title: Acta Materialia Volume: 196 Pages: 584-594
  • DOI: 10.1016/j.actamat.2020.07.016
  • Peer Reviewed / Open Access
• [Journal Article] Element Effects of Mn and Ge on the Tuning of Mechanical Properties of High-Entropy Alloys (2020)
  • Author(s): Lam Tu-Ngoc、Tsai Che-Wei、Chen Bo-Kai、Lai Bo-Hong、Liu Hung-Chih、Kawasaki Takuro、Harjo Stefanus、Lin Bi-Hsuan、Huang E-Wen
  • Journal Title: Metallurgical and Materials Transactions A Volume: 51 Pages: 5023-5028
  • DOI: 10.1007/s11661-020-05932-9
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Extremely high dislocation density and deformation pathway of CrMnFeCoNi high entropy alloy at ultralow temperature (2020)
  • Author(s): Naeem Muhammad、He Haiyan、Harjo Stefanus、Kawasaki Takuro、Zhang Fan、Wang Bing、Lan Si、Wu Zhenduo、Wu Yuan、Lu Zhaoping、Liu Chain T.、Wang Xun-Li
  • Journal Title: Scripta Materialia Volume: 188 Pages: 21-25
  • DOI: 10.1016/j.scriptamat.2020.07.004
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Enhancement of fatigue resistance by overload-induced deformation twinning in a CoCrFeMnNi high-entropy alloy (2020)
  • Author(s): Lam Tu-Ngoc、Lee Soo Yeol、Tsou Nien-Ti、Chou Hung-Sheng、Lai Bo-Hong、Chang Yao-Jen、Feng Rui、Kawasaki Takuro、Harjo Stefanus、Liaw Peter K.、Yeh An-Chou、Li Ming-Jun、Cai Ren-Fong、Lo Sheng-Chuan、Huang E-Wen
  • Journal Title: Acta Materialia Volume: 201 Pages: 412-424
  • DOI: 10.1016/j.actamat.2020.10.016
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Deformation behavior study in a model dual phase system of copper-martensitic steel using in-situ synchrotron X-ray diffraction (2020)
  • Author(s): Teimouri M、Godfrey A、Yu B、Tsuji N
  • Journal Title: IOP Conference Series: Materials Science and Engineering Volume: 895 Pages: 012002-012002
  • DOI: 10.1088/1757-899x/895/1/012002
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Change in Mechanical Properties by High-Cycle Loading Up to Gigacycle for 316L Stainless Steel (2020)
  • Author(s): Naoe Takashi、Harjo Stefanus、Kawasaki Takuro、Xiong Zhihong、Futakawa Masatoshi
  • Journal Title: Proceedings of the 14th International Workshop on Spallation Materials Technology, JPS Conf. Proc. Volume: 28 Pages: 061009-061009
  • DOI: 10.7566/jpscp.28.061009
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Ultra-Grain Refinement of High Entropy Alloys (2020)
  • Author(s): YOSHIDA Shuhei、IKEUCHI Takuto、BHATTACHARJEE Tilak、BAI Yu、SHIBATA Akinobu、TSUJI Nobuhiro
  • Journal Title: J. Jpn. Soc. Powder Powder Metallurgy Volume: 67 Issue: 3 Pages: 113-120
  • DOI: 10.2497/jjspm.67.113
  • NAID: 130007808681
  • ISSN: 0532-8799, 1880-9014
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Unique high-temperature deformation dominated by grain boundary sliding in heterogeneous necklace structure formed by dynamic recrystallization in HfNbTaTiZr BCC refractory high entropy alloy (2020)
  • Author(s): Eleti Rajeshwar R.、Chokshi Atul H.、Shibata Akinobu、Tsuji Nobuhiro
  • Journal Title: Acta Materialia Volume: 183 Pages: 64-77
  • DOI: 10.1016/j.actamat.2019.11.001
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Unique deformation behavior and microstructure evolution in high temperature processing of HfNbTaTiZr refractory high entropy alloy (2019)
  • Author(s): Eleti Rajeshwar R.、Bhattacharjee Tilak、Shibata Akinobu、Tsuji Nobuhiro
  • Journal Title: Acta Materialia Volume: 171 Pages: 132-145
  • DOI: 10.1016/j.actamat.2019.04.018
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Effect of elemental combination on friction stress and Hall-Petch relationship in face-centered cubic high / medium entropy alloys (2019)
  • Author(s): Yoshida Shuhei、Ikeuchi Takuto、Bhattacharjee Tilak、Bai Yu、Shibata Akinobu、Tsuji Nobuhiro
  • Journal Title: Acta Materialia Volume: 171 Pages: 201-215
  • DOI: 10.1016/j.actamat.2019.04.017
  • Peer Reviewed
• [Journal Article] Synergistic effect by Al addition in improving mechanical performance of CoCrNi medium-entropy alloy (2019)
  • Author(s): Lee Donghee、Agustianingrum Maya Putri、Park Nokeun、Tsuji Nobuhiro
  • Journal Title: Journal of Alloys and Compounds Volume: 800 Pages: 372-378
  • DOI: 10.1016/j.jallcom.2019.06.005
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Engineering heterogeneous microstructure by severe warm-rolling for enhancing strength-ductility synergy in eutectic high entropy alloys (2019)
  • Author(s): Reddy S.R.、Yoshida S.、Sunkari U.、Lozinko A.、Joseph J.、Saha R.、Fabijanic D.、Guo S.、Bhattacharjee P.P.、Tsuji N.
  • Journal Title: Materials Science and Engineering: A Volume: 764 Pages: 138226-138226
  • DOI: 10.1016/j.msea.2019.138226
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Nanostructuring with Structural-Compositional Dual Heterogeneities Enhances Strength-Ductility Synergy in Eutectic High Entropy Alloy (2019)
  • Author(s): Reddy S. R.、Yoshida S.、Bhattacharjee T.、Sake N.、Lozinko A.、Guo S.、Bhattacharjee P. P.、Tsuji N.
  • Journal Title: Scientific Reports Volume: 9 Pages: 11505-11505
  • DOI: 10.1038/s41598-019-47983-y
  • NAID: 120006822519
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Deformation microstructures and strength of face-centered cubic high/medium entropy alloys (2019)
  • Author(s): Yoshida Shuhei、Ikeuchi Takuto、Bai Yu、Shibata Akinobu、Hansen Niels、Huang Xiaoxu、Tsuji Nobuhiro
  • Journal Title: IOP Conference Series: Materials Science and Engineering Volume: 580 Pages: 012053-012053
  • DOI: 10.1088/1757-899x/580/1/012053
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Formation Mechanism of Ultrafine Grained Microstructures: Various Possibilities for Fabricating Bulk Nanostructured Metals and Alloys (2019)
  • Author(s): Tsuji Nobuhiro、Gholizadeh Reza、Ueji Rintaro、Kamikawa Naoya、Zhao Lijia、Tian Yanzhong、Bai Yu、Shibata Akinobu
  • Journal Title: MATERIALS TRANSACTIONS Volume: 60 Issue: 8 Pages: 1518-1532
  • DOI: 10.2320/matertrans.mf201936 10.2320/matertrans.MF201936
  • NAID: 130007683601
  • ISSN: 1345-9678, 1347-5320
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A 3D crystal plasticity model of monotonic and cyclic simple shear deformation for commercial-purity polycrystalline Ti with a harmonic structure (2019)
  • Author(s): Wang Xiang、Cazes Fabien、Li Jia、Hocini Azziz、Ameyama Kei、Dirras Guy
  • Journal Title: Mechanics of Materials Volume: 128 Pages: 117-128
  • DOI: 10.1016/j.mechmat.2018.10.006
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Unique Mechanical Properties of Harmonic Structure Designed Materials (2019)
  • Author(s): 飴山 惠，堀川直樹、川畑美絵
  • Journal Title: Journal of the Iron and Steel Institute of Japan Volume: 105 Issue: 2 Pages: 124-126
  • DOI: 10.2355/tetsutohagane.tetsu-2018-089 10.2355/tetsutohagane.TETSU-2018-089
  • NAID: 130007585447
  • ISSN: 0021-1575, 1883-2954
  • Peer Reviewed / Open Access
• [Journal Article] Comparative study on Ti-Nb binary alloys fabricated through spark plasma sintering and conventional P/M routes for biomedical application (2019)
  • Author(s): K.Rajamallu R.Archana J. Nivedhitha D.K.Pattanayak K.Ameyama S.R.Dey
  • Journal Title: Materials Science and Engineering: C Volume: Vol.94 Pages: 619-627
  • DOI: 10.1016/j.msec.2018.10.006
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Evaluation of Fatigue Properties under Four-point Bending and Fatigue Crack Propagation in Austenitic Stainless Steel with a Bimodal Harmonic Structure (2019)
  • Author(s): Shoichi Kikuchi, Yuta Nakatsuka, Yoshikazu Nakai, Masashi Nakatani, Mie Ota Kawabata, Kei Ameyama
  • Journal Title: Frattura ed Integrit&agrave; Strutturale Volume: 48 Pages: 545-553
  • DOI: 10.3221/igf-esis.48.52
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] In-situ observation of dislocation dynamics near heterostructured interfaces (2019)
  • Author(s): Zhou Hao、Huang Chongxiang、Sha Xuechao、Xiao Lirong、Ma Xiaolong、Hoeppel Heinz Werner、Goeken Mathias、Wu Xiaolei、Ameyama Kei、Han Xiaodong、Zhu Yuntian
  • Journal Title: Materials Research Letters Volume: 7 Pages: 376-382
  • DOI: 10.1080/21663831.2019.1616330
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Towards strength-ductility synergy through hierarchical microstructure design in an austenitic stainless steel (2019)
  • Author(s): Zheng Ruixiao、Liu Maowen、Zhang Zhe、Ameyama Kei、Ma Chaoli
  • Journal Title: Scripta Materialia Volume: 169 Pages: 76-81
  • DOI: 10.1016/j.scriptamat.2019.05.017
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Fatigue crack growth behavior in a harmonic structure designed austenitic stainless steel (2019)
  • Author(s): Zhou Gaobin、Ma Hantuo、Zhang Zhe、Sun Jing、Wang Xiaobin、Zeng Peng、Zheng Ruixiao、Chen Xu、Ameyama Kei
  • Journal Title: Materials Science and Engineering: A Volume: 758 Pages: 121-129
  • DOI: 10.1016/j.msea.2019.05.008
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A New Microstructure Design for High Performance Structure Metallic Materials (2019)
  • Author(s): Ameyama, K, Kawabata, M, and Sharma, B
  • Journal Title: Proc 40th Int Ocean Polar Eng Conf Volume: ISOPE, 15 Pages: 3868-3884
  • Peer Reviewed / Open Access
• [Journal Article] Effect of Bimodal Harmonic Structure on Fatigue Properties of Austenitic Stainless Steel under Axial Loading (2019)
  • Author(s): Shoichi KIKUCHI, Yuhei NUKUI, Yuta NAKATSUKA, Yoshikazu NAKAI, Masashi NAKATANI, Mie Ota KAWABATA, Kei AMEYAMA
  • Journal Title: International Journal of Fatigue Volume: 127 Pages: 222-228
  • DOI: 10.1016/j.ijfatigue.2019.06.016
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Corrosion behavior of harmonic structured 316L stainless steel in 3.21% NaCl and simulated body fluid solution (2019)
  • Author(s): Prabhat Kumar Rai, K. Mondal, Kei Ameyama, Koki Yagi, Shashank Shekhar
  • Journal Title: Journal of Materials Engineering and Performance Volume: 44 Pages: 7554-7580
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Advantages of architectured harmonic structure in structural performance (2019)
  • Author(s): Orlov Dmytro、Zhou Jinming、Hall Stephen、Ota-Kawabata Mie、Ameyama Kei
  • Journal Title: Materials Science and Engineering Volume: 580 Pages: 012019-012019
  • DOI: 10.1088/1757-899x/580/1/012019
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Development of strong and ductile metastable face-centered cubic single-phase high-entropy alloys (2019)
  • Author(s): Daixiu Wei, Xiaoqing Li, Stephan Schonecker, Jing Jiang, Won-Mi Choi, Byeong-Joo Lee, Hyoung Seop Kim, Akihiko Chiba, Hidemi Kato
  • Journal Title: Acta Materialia Volume: 181 Pages: 318-330
  • DOI: 10.1016/j.actamat.2019.09.050
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Microstructure evolution and mechanical property of a precipitation-strengthened refractory high-entropy alloy HfNbTaTiZr (2019)
  • Author(s): Yang Cheng、Aoyagi Kenta、Bian Huakang、Chiba Akihiko
  • Journal Title: Materials Letters Volume: 254 Pages: 46-49
  • DOI: 10.1016/j.matlet.2019.07.027
  • Peer Reviewed
• [Journal Article] Manipulating local heat accumulation towards controlled quality and microstructure of a Co-Cr-Mo alloy in powder bed fusion with electron beam (2019)
  • Author(s): Zhao Yufan、Koizumi Yuichiro、Aoyagi Kenta、Yamanaka Kenta、Chiba Akihiko
  • Journal Title: Materials Letters Volume: 254 Pages: 269-272
  • DOI: 10.1016/j.matlet.2019.07.078
  • Peer Reviewed
• [Journal Article] Microstructural control of alloy 718 fabricated by electron beam melting with expanded processing window by adaptive offset method (2019)
  • Author(s): Ding Xiao、Koizumi Yuichiro、Aoyagi Kenta、Kii Tadashi、Sasaki Nobuyuki、Hayasaka Yuichiro、Yamanaka Kenta、Chiba Akihiko
  • Journal Title: Materials Science and Engineering A Volume: 764 Pages: 138058-138058
  • DOI: 10.1016/j.msea.2019.138058
  • Peer Reviewed
• [Journal Article] On microstructural homogenization and mechanical properties optimization of biomedical Co-Cr-Mo alloy additively manufactured by using electron beam melting (2019)
  • Author(s): Wei Daixiu、Anniyaer Ainiwaer、Koizumi Yuichiro、Aoyagi Kenta、Nagasako Makoto、Kato Hidemi、Chiba Akihiko
  • Journal Title: Additive Manufacturing Volume: 28 Pages: 215-227
  • DOI: 10.1016/j.addma.2019.05.010
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Effect of Al content and cold rolling on the microstructure and mechanical properties of Al5Cr12Fe35Mn28Ni20 high-entropy alloy (2019)
  • Author(s): Elkatatny Sally、Gepreel Mohamed A.H.、Hamada Atef、Nakamura Koichi、Yamanaka Kenta、Chiba Akihiko
  • Journal Title: Materials Science and Engineering A Volume: 759 Pages: 380-390
  • DOI: 10.1016/j.msea.2019.05.056
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Comprehensive study on mechanisms for grain morphology evolution and texture development in powder bed fusion with electron beam of Co-Cr-Mo alloy (2019)
  • Author(s): Zhao Yufan、Koizumi Yuichiro、Aoyagi Kenta、Wei Daixiu、Yamanaka Kenta、Chiba Akihiko
  • Journal Title: Materialia Volume: 6 Pages: 100346-100346
  • DOI: 10.1016/j.mtla.2019.100346
  • Peer Reviewed
• [Journal Article] Simple method to construct process maps for additive manufacturing using a support vector machine (2019)
  • Author(s): Aoyagi Kenta、Wang Hao、Sudo Hideki、Chiba Akihiko
  • Journal Title: Additive Manufacturing Volume: 27 Pages: 353-362
  • DOI: 10.1016/j.addma.2019.03.013
  • Peer Reviewed
• [Journal Article] Novel Co-rich high performance twinning-induced plasticity (TWIP) and transformation-induced plasticity (TRIP) high-entropy alloys (2019)
  • Author(s): Daixiu Wei, Xiaoqing Li, Jing Jiang, Weicheng Heng, Yuichiro Koizumi, Won-Mi Choi, Byeong-Joo Lee, Hyoung Seop Kim, Hidemi Kato, Akihiko Chiba
  • Journal Title: Scripta Materialia Volume: 165 Pages: 39-43
  • DOI: 10.1016/j.scriptamat.2019.02.018
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Strength?ductility balance in an ultrafine-grained non-equiatomic Fe50(CoCrMnNi)50 medium-entropy alloy with a fully recrystallized microstructure (2019)
  • Author(s): Choi Minku、Ondicho Ibrahim、Park Nokeun、Tsuji Nobuhiro
  • Journal Title: Journal of Alloys and Compounds Volume: 780 Pages: 959-966
  • DOI: 10.1016/j.jallcom.2018.11.265
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Effect of aluminum addition on solid solution strengthening in CoCrNi medium-entropy alloy (2019)
  • Author(s): Agustianingrum Maya Putri、Yoshida Shuhei、Tsuji Nobuhiro、Park Nokeun
  • Journal Title: Journal of Alloys and Compounds Volume: 781 Pages: 866-872
  • DOI: 10.1016/j.jallcom.2018.12.065
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Fretting wear mechanism for harmonic, non-harmonic and conventional 316L stainless steels (2019)
  • Author(s): Rai Prabhat K.、Shekhar S.、Yagi K.、Ameyama K.、Mondal K.
  • Journal Title: Wear Volume: 424-425 Pages: 23-32
  • DOI: 10.1016/j.wear.2019.02.005
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Molten pool behavior and effect of fluid flow on solidification conditions in selective electron beam melting (SEBM) of a biomedical Co-Cr-Mo alloy (2019)
  • Author(s): Zhao Yufan、Koizumi Yuichiro、Aoyagi Kenta、Wei Daixiu、Yamanaka Kenta、Chiba Akihiko
  • Journal Title: Additive Manufacturing Volume: 26 Pages: 202-214
  • DOI: 10.1016/j.addma.2018.12.002
  • Peer Reviewed
• [Journal Article] Mechanical and corrosion properties of CoCrFeNiTi-based high-entropy alloy additive manufactured using selective laser melting (2019)
  • Author(s): Fujieda Tadashi、Chen Meichuan、Shiratori Hiroshi、Kuwabara Kosuke、Yamanaka Kenta、Koizumi Yuichiro、Chiba Akihiko、Watanabe Seiichi
  • Journal Title: Additive Manufacturing Volume: 25 Pages: 412-420
  • DOI: 10.1016/j.addma.2018.10.023
  • Peer Reviewed
• [Journal Article] Effect of low temperature on tensile properties of AlCoCrFeNi2.1 eutectic high entropy alloy (2018)
  • Author(s): Bhattacharjee Tilak、Zheng Ruixiao、Chong Yan、Sheikh Saad、Guo Sheng、Clark Ian Thomas、Okawa Toshiro、Wani Irfan Samad、Bhattacharjee Pinaki Prasad、Shibata Akinobu、Tsuji Nobuhiro
  • Journal Title: Materials Chemistry and Physics Volume: 210 Pages: 207-212
  • DOI: 10.1016/j.matchemphys.2017.06.023
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Hot deformation behavior of CoCrFeMnNi FCC high entropy alloy (2018)
  • Author(s): Eleti Rajeshwar R.、Bhattacharjee Tilak、Zhao Lijia、Bhattacharjee Pinaki P.、Tsuji Nobuhiro
  • Journal Title: Materials Chemistry and Physics Volume: 210 Pages: 176-186
  • DOI: 10.1016/j.matchemphys.2017.06.062
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Simultaneous Strength-Ductility Enhancement of a Nano-Lamellar AlCoCrFeNi2.1 Eutectic High Entropy Alloy by Cryo-Rolling and Annealing (2018)
  • Author(s): Bhattacharjee T.、Wani I. S.、Sheikh S.、Clark I. T.、Okawa T.、Guo S.、Bhattacharjee P. P.、Tsuji N.
  • Journal Title: Scientific Reports Volume: 8
  • DOI: 10.1038/s41598-018-21385-y
  • NAID: 120006398894
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Possibility of Microstructure Control in High Entropy Alloys (2018)
  • Author(s): 辻 伸泰、朴 魯謹、李 翔、Rajeshwar, Reddy Eleti、吉田周平、Tilak Bhattacharjee、白 玉、Pinaki Prasad Bhattacharjee、黒川 修
  • Journal Title: Materia Japan Volume: 57 Issue: 7 Pages: 317-322
  • DOI: 10.2320/materia.57.317
  • NAID: 130007386676
  • ISSN: 1340-2625, 1884-5843
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Effect of Cold Rolling and Heat-treatment on the Microstructure and Mechanical Properties of β Titanium Ti-25Nb-25Zr Alloy (2018)
  • Author(s): Sanjay Vajpai, Bhupendra Sharma, Mie Ota, Kei Ameyama
  • Journal Title: Materials Science and Engineering A Volume: 736 Pages: 323-328
  • DOI: 10.1016/j.msea.2018.09.002
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Improvement of Strength with Maintaining Ductility of Harmonic Structure Pure Copper by Cold Rolling and Annealing Process (2018)
  • Author(s): Guodong Li, Shuichi Morinaka, Mie Kawabata, Chaoli Ma, Kei Ameyama
  • Journal Title: Procedia Manufacturing Volume: 15 Pages: 1641-1648
  • DOI: 10.1016/j.promfg.2018.07.292
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Electron beam melting of boron-modified Ti?6Al?2Sn?4Zr?2Mo?0.1Si alloy with superior tensile strength and oxidation resistance at elevated temperatures (2018)
  • Author(s): Fujieda Tadashi、Cui Yujie、Aoyagi Kenta、Koizumi Yuichiro、Chiba Akihiko
  • Journal Title: Materialia Volume: 4 Pages: 367-372
  • DOI: 10.1016/j.mtla.2018.10.013
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Nitinol powders generate from Plasma Rotation Electrode Process provide clean powder for biomedical devices used with suitable size, spheroid surface and pure composition (2018)
  • Author(s): Hsu Tai-I、Wei Chia-Min、Wu Lu-Dien、Li Yun-Ping、Chiba Akihiko、Tsai Meng-Hsiu
  • Journal Title: Scientific Reports Volume: 8
  • DOI: 10.1038/s41598-018-32101-1
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Heterogeneous microstructures and corrosion resistance of biomedical Co-Cr-Mo alloy fabricated by electron beam melting (EBM) (2018)
  • Author(s): Wei Daixiu、Koizumi Yuichiro、Chiba Akihiko、Ueki Kosuke、Ueda Kyosuke、Narushima Takayuki、Tsutsumi Yusuke、Hanawa Takao
  • Journal Title: Additive Manufacturing Volume: 24 Pages: 103-114
  • DOI: 10.1016/j.addma.2018.09.006
  • Peer Reviewed
• [Journal Article] Electron beam additive manufacturing of Inconel 718 alloy rods: Impact of build direction on microstructure and high-temperature tensile properties (2018)
  • Author(s): Sun Shi-Hai、Koizumi Yuichiro、Saito Tsuyoshi、Yamanaka Kenta、Li Yun-Ping、Cui Yujie、Chiba Akihiko
  • Journal Title: Additive Manufacturing Volume: 23 Pages: 457-470
  • DOI: 10.1016/j.addma.2018.08.017
  • Peer Reviewed
• [Journal Article] Mechanical and corrosion properties of AlCoCrFeNi high-entropy alloy fabricated with selective electron beam melting (2018)
  • Author(s): Kuwabara Kosuke、Shiratori Hiroshi、Fujieda Tadashi、Yamanaka Kenta、Koizumi Yuichiro、Chiba Akihiko
  • Journal Title: Additive Manufacturing Volume: 23 Pages: 264-271
  • DOI: 10.1016/j.addma.2018.06.006
  • Peer Reviewed
• [Journal Article] Creation of Innovative Structural Materials via Harmonic Structure Design (2018)
  • Author(s): 飴山 惠，中谷 仁，川畑美絵
  • Journal Title: J.FGMs Volume: 32 Issue: 0 Pages: 1-6
  • DOI: 10.14957/fgms.32.1
  • NAID: 130006394229
  • ISSN: 2188-3807
  • Peer Reviewed
• [Presentation] Deformation behavior of a harmonic structure designed low SFE Cu-10Ge alloy (2021)
  • Author(s): Kenta Hori, Bhupendra Sharma, Mie Kawabata, Kei Ameyama
  • Organizer: STINT-JSPS International Symposium for Young Researchers 2021
  • Int'l Joint Research
• [Presentation] Fablication of Harmonic Structured Ni by a Novel Bi-Modal Milling Process (2021)
  • Author(s): Taiki Kambara, Bhupendra Sharma, Mie Kawabata, Kei Ameyama
  • Organizer: STINT-JSPS International Symposium for Young Researchers 2021
  • Int'l Joint Research
• [Presentation] Ti-6Al-4V合金粉末の表面酸化皮膜の電気的性質に及ぼす力学的刺激の効果 (2021)
  • Author(s): 助川彩音, 青柳健大, 柳原圭司, 劉方舟, 千葉晶彦, 伊藤 桂介
  • Organizer: 日本金属学会 2021年春期第168回講演大会
• [Presentation] 電子ビーム積層造形法によるAl-Mg-Sc-Zr合金の作製 (2021)
  • Author(s): 添田和優, 青柳健大, 村上勇夫, 石神健太, 千葉晶彦
  • Organizer: 日本金属学会 2021年春期第168回講演大会
• [Presentation] Grain structure control of Direct Energy Deposited Ti-6Al-4V alloy with a wide range of processing parameters (2021)
  • Author(s): L. Ouyang, Y. Zhao, Y. Imamiya, K. Aoyagi, A. Chiba
  • Organizer: 日本金属学会 2021年春期第168回講演大会
• [Presentation] 電子ビーム積層造形による難溶接性超合金Alloy713ELCの割れを導く機械的因子 (2021)
  • Author(s): 雷雨超, 青柳健大, 青田欣也, 桑原孝介, 千葉晶彦
  • Organizer: 日本金属学会 2021年春期第168回講演大会
• [Presentation] CoCrFeMnNi系準安定ハイエントロピー合金の組織と塑性変形挙動に及ぼすN添加の影響 (2021)
  • Author(s): 山中謙太, 森真奈美, 吉田和男, 水澤和大, 小貫祐介, 佐藤成男, 千葉晶彦
  • Organizer: 日本金属学会 2021年春期第168回講演大会
• [Presentation] CoCrFeMnNi系準安定ハイエントロピー合金の相分解挙動に及ぼすN添加の影響と機械的特性の変化 (2021)
  • Author(s): 森真奈美, 青沼拓実, 山中謙太, 吉田和男, 千葉晶彦
  • Organizer: 日本金属学会 2021年春期第168回講演大会
• [Presentation] Effect of water quench heat treatments on microstructure and mechanical properties of EBM-built Ti-6Al-4V (2021)
  • Author(s): K. S. N. Sesha, K. Yamanaka, K. Aoyagi, A. Chiba
  • Organizer: 日本金属学会 2021年春期第168回講演大会
• [Presentation] The effects of process parameters on the powder characteristics in plasma rotating electrode process (PREP) (2021)
  • Author(s): Y. Cui, H. Numata, Y. Zhao, K. Wako, H. Bian, K. Yamanaka, K. Aoyagi, A. Chiba
  • Organizer: 日本金属学会 2021年春期第168回講演大会
• [Presentation] Novel quinary single-phase face-centered cubic high-entropy alloys with enhanced lattice distortion, planar slip, and twinning-induced plasticity (2021)
  • Author(s): 李家翔, 山中謙太, 千葉晶彦
  • Organizer: 日本金属学会 2021年春期第168回講演大会
• [Presentation] Ball milling treatment of gas atomized Ti-48Al-2Cr-2Nb powder and its effect on preventing smoking during electron beam melting building process (2021)
  • Author(s): S. Yim, H. Bian, K. Aoyagi, A. Chiba
  • Organizer: 日本金属学会 2021年春期第168回講演大会
• [Presentation] 耐熱ハイエントロピー合金CrHfNbTaTiの微細構造と機械特性の研究 (2021)
  • Author(s): 楊程, 卞華康, 青柳健大, 山中謙太, 千葉晶彦
  • Organizer: 日本金属学会 2021年春期第168回講演大会
• [Presentation] Investigations of solidification path in CrMnFeCoCu by using X-ray imaging techniques (2021)
  • Author(s): 羅力天、中野敬太、鳴海大翔、安田秀幸
  • Organizer: 日本金属学会第168回講演大会
• [Presentation] Anisotropic Thermal Lattice Expansion and Crystallographic Structure of Strontium Aluminide within Al-10Sr Alloy as Measured by In-situ Neutron Diffraction (2021)
  • Author(s): Klaus-Dieter Liss, Stefanus Harjo, Takuro Kawasaki, Kazuya Aizawa, Pingguang Xu
  • Organizer: 2021 TMS Annual Meeting & Exhibition
  • Int'l Joint Research
• [Presentation] Nucleation of New Deformation Modes in Nanostructured Metals (2021)
  • Author(s): Nobuhiro Tsuji
  • Organizer: TMS2021 Annual Meeting and Exhibition
  • Int'l Joint Research / Invited
• [Presentation] Unique Microstructural Evolution and Deformation Behavior of HfNbTaTiZr BCC High Entropy Alloy at Elevated Temperatures (2021)
  • Author(s): N. Tsuji ; R. Eleti ; A. Chokshi ; A. Shibata
  • Organizer: TMS2021 Annual Meeting and Exhibition
  • Int'l Joint Research / Invited
• [Presentation] X線回折プロファイル解析法による金属材料の変形組織分析－ハイエントロピー合金を例に (2021)
  • Author(s): 吉田 周平
  • Organizer: 第16回SPring-8金属材料評価研究会／第57回SPring-8先端利用技術ワークショップ「X線回折プロファイル解析を用いた放射光その場X線回折測定による金属材料の変形組織解析」
  • Invited
• [Presentation] Aging behavior in deformed CoCrFeMnNi high-entropy alloy: effect of deformation on decomposition of concentrated solid-solution (2021)
  • Author(s): Reza Gholizadeh, Yu Bai, Shu Kurokawa, Nobuhiro Tsuji
  • Organizer: 日本金属学会 2021 年春期（第168 回）講演大会
• [Presentation] Characteristic deformation behavior of HfNbTiZr refractory medium entropy alloy (2021)
  • Author(s): QIAN HE, Shuhei Yoshida, Nobuhiro Tsuji
  • Organizer: 日本金属学会 2021 年春期（第168 回）講演大会
• [Presentation] Ductility of Quaternary Refractory Medium Entropy Alloys with Body-centered Cubic Structure (2020)
  • Author(s): Qian He, Shuhei Yoshida, Tilak Bhattacharjee, Nobuhiro Tsuji
  • Organizer: TMS 2020 149th Annual Meeting & Exhibition
  • Int'l Joint Research
• [Presentation] In-situ Neutron Diffraction Study on the Tensile Deformation of an Ultrafine-grained Fe-Ni-Al-C steel Including B2 Phase (2020)
  • Author(s): Si Gao, Wenqi Mao, Wu Gong, Stefanus Harjo, Akinobu Shibata, Nobuhiro Tsuji
  • Organizer: TMS 2020 149th Annual Meeting & Exhibition
  • Int'l Joint Research
• [Presentation] Evaluation of the Serration Behavior Characterized as Strain Localization in High-Mn Austenitic Steel (2020)
  • Author(s): Sukyoung Hwang, Myeong-Heom Park, Yu Bai, Akinobu Shibata, Nobuhiro Tsuji
  • Organizer: TMS 2020 149th Annual Meeting & Exhibition
  • Int'l Joint Research
• [Presentation] Effect of elemental combination on microstructure and mechanical properties of quaternary refractory medium entropy alloys (2020)
  • Author(s): Qian He , Shuhei Yoshida, Hideyuki Yasuda, Nobuhiro Tsuji
  • Organizer: 日本金属学会 2020年春期（第166回）講演大会
• [Presentation] 高・中エントロピー合金における変形組織の方位依存性と力学特性の関係 (2020)
  • Author(s): 吉田周平, Fu Rui, Gong Wu, 池内琢人, Bai Yu, 柴田曉伸, Feng Zongqiang, Wu Guilin, Hansen Niels, Huang Xiaoxu, 辻 伸泰
  • Organizer: 日本金属学会 2020年春期（第166回）講演大会
• [Presentation] Co20Cr40Ni40 Medium Entropy Alloyにおける圧延変形組織の発達とその結晶方位依存性 (2020)
  • Author(s): 山崎直人, 吉田周平, Bai Yu, Bhattacharjee Pinaki, 辻 伸泰
  • Organizer: 日本金属学会 2020年春期（第166回）講演大会
• [Presentation] FCC単相 Medium Entropy Alloy における圧延変形組織の発達とその結晶方位依存性 (2020)
  • Author(s): 山崎 直人, 吉田 周平, 白 玉, BHATTACHARJEE Pinaki, 辻 伸泰
  • Organizer: 日本金属学会第167回秋期講演大会
• [Presentation] Deformation behavior of HfNbTiZr refractory medium entropy alloy (2020)
  • Author(s): QIAN HE, Shuhei Yoshida, Nobuhiro Tsuji
  • Organizer: 日本金属学会第167回秋期講演大会
• [Presentation] Mechanical Response and Microstructure Evolution in CoCrFeMnNi High Entropy Alloy Deformed in Wide Ranges of Strain and Temperature (2020)
  • Author(s): Reza Gholizadeh, Shuhei Yoshida, Yu Bai, Akinobu Shibata, Nobuhiro Tsuji
  • Organizer: 日本金属学会第167回秋期講演大会
• [Presentation] Mechanical Properties and Deformation Mechanisms of Cu Zn Alloys with Various Grain Sizes (2020)
  • Author(s): Bai Yu, Deng Zhangfan, Park Myeong-Heom, Tsuji Nobuhiro, Shibata Akinobu
  • Organizer: ISIJ・JIM共同セッション 超微細粒 組織制御の基礎 2
• [Presentation] CoCrFeMnNiハイエントロピー合金におけるσ相析出に及ぼす変形量の影響 (2020)
  • Author(s): 山下 徹哉, Reza Gholizadeh, 吉田 周平, 辻 伸泰
  • Organizer: 日本金属学会第167回秋期講演大会
• [Presentation] CoCrMo/CrMnFeCoNi高エントロピー合金調和組織材料の創製 (2020)
  • Author(s): 松村翔、梶本尚聖、Sharma Bhupendra、川畑美絵、藤原弘、飴山
  • Organizer: 第6回材料WEEK 材料シンポジウムワークショップ・若手学生研究発表会
• [Presentation] 調和組織制御されたCrMnFeCoNi高エントロピー合金の変形挙動 (2020)
  • Author(s): 日野宏紀, 赤田英里, Sharma Bhupendra, 川畑美絵, 飴山惠
  • Organizer: 粉体粉末冶金協会2020年度秋季大会（第126回講演大会）
• [Presentation] CoCrMo/CrMnFeCoNi高エントロピー合金複合組織材料の作製と力学特性評価 (2020)
  • Author(s): 松村翔、赤田英里、藤原弘、Bhupendra Sharma、川畑美絵、飴山惠
  • Organizer: 粉体粉末冶金協会2020年度秋季大会（第126回講演大会）
• [Presentation] Influences of plasma rotating electrode process parameters on powder formation by numerical simulation and statistical analysis (2020)
  • Author(s): 崔玉傑, 趙宇凡, 沼田春子, 若生公郎, 卞華康, 山中謙太, 青柳健大, 千葉晶彦
  • Organizer: 日本金属学会 2020年秋期講演大会
• [Presentation] Single bead study of electron beam melting (EBM) on a novel refractory high-entropy alloy HfMoNbTaTi (2020)
  • Author(s): 楊程, 青柳健大, 山中謙太, 千葉晶彦
  • Organizer: 日本金属学会 2020年秋期講演大会
• [Presentation] プラズマ回転電極法におけるプロセス条件と粉末特性の関係 (2020)
  • Author(s): 沼田春子, 崔玉傑, 若生公郎, 山中謙太, 千葉晶彦
  • Organizer: 日本金属学会 2020年秋期講演大会
• [Presentation] パウダーベッド方式の電子ビーム/レーザー積層造形におけるメルトプールの動的挙動と欠陥形成 (2020)
  • Author(s): 趙宇凡, 青柳健大, 崔玉傑, 卞華康, 山中謙太, 千葉晶彦
  • Organizer: 日本金属学会 2020年秋期講演大会
• [Presentation] Powder Morphology in Defects Suppression of Additively Manufactured Inconel 718 (2020)
  • Author(s): 趙宇凡, 青柳健大, 台野洋平, 山中謙太, 千葉晶彦
  • Organizer: 日本金属学会 2020年秋期講演大会
• [Presentation] CoCrFeMnNi系準安定ハイエントロピー合金の熱処理における組織と機械的特性の変化 (2020)
  • Author(s): 青沼拓実, 森真奈美, 山中謙太, 吉田和男, 千葉晶彦
  • Organizer: 日本金属学会 2020年秋期講演大会
• [Presentation] Refinement of lamellar structure of Ti-48Al-2Cr-2Nb alloy by multi-stage heat treatment (2020)
  • Author(s): 任勝均, 卞華康, 青柳健大, 山中謙太, 千葉晶彦
  • Organizer: 日本金属学会 2020年秋期講演大会
• [Presentation] Microstructure refinement for superior ductility of Al-Si alloy by electron beam melting (2020)
  • Author(s): H. Bian, K. Aoyagi, Y. Zhao, C. Maeda, T. Mouri, A. Chiba
  • Organizer: EBAM2020
  • Int'l Joint Research
• [Presentation] Effect of surface coating for pure-Cu powders on electron beam melting process (2020)
  • Author(s): K. Aoyagi, H. Watanabe, Y. Shibuya, K. Sato, A. Chiba
  • Organizer: EBAM2020
  • Int'l Joint Research
• [Presentation] Avoiding “smoke” with a ball milling in air for alloy powder in powder bed fusion type electron beam additive manufacturing (2020)
  • Author(s): A. Chiba, K. Aoyagi, T. Kudo, Y. Daino, Y. Zhao, K. Yamanaka
  • Organizer: EBAM2020
  • Int'l Joint Research
• [Presentation] A Comparative Study Between Gas-atomized and Plasma Rotating Electrode Processed Powders on Forming Quality of IN718 in Electron Beam Powder-bed Fusion (2020)
  • Author(s): Y. Zhao, K. Aoyagi, Y. Daino, K. Yamakana, A. Chiba
  • Organizer: EBAM2020
  • Int'l Joint Research
• [Presentation] Effect of interstitial nitrogen on the phase stability, strengthening, mechanical behavior in TRIP-assisted high-entropy alloys (2020)
  • Author(s): K. Yamanaka, M. Mori, Y. Onuki, S. Sato, A. Chiba
  • Organizer: MS&T 2020
  • Int'l Joint Research
• [Presentation] プラズマ回転電極法における粉末粒径に及ぼすプロセス条件の影響 (2020)
  • Author(s): 沼田春子, 崔玉傑, 趙宇凡, 若生公郎, 山中謙太, 千葉晶彦
  • Organizer: 第139回金属材料研究所講演会
• [Presentation] プラズマ回転電極法における粉末粒径に及ぼすプロセス条件の影響 (2020)
  • Author(s): 沼田春子, 崔玉傑, 趙宇凡, 若生公郎, 山中謙太, 千葉晶彦
  • Organizer: 学際・国際的高度人材育成ライフイノベーションマテリアル創製 共同研究プロジェクト（6大学連携プロジェクト）第5回公開討論会
• [Presentation] Ti-6Al-4V合金粉末の表面酸化皮膜の電気的性質に及ぼす力学的刺激の効果 (2020)
  • Author(s): 助川彩音, 柳原圭司, 山中謙太, 青柳健大, 千葉晶彦
  • Organizer: 2020年度塑性加工学会 東北・北海道支部 若手研究発表会
• [Presentation] 電子ビーム積層造形法で作製したAl-Mg-Sc-Zr系合金のミクロ組織と機械的特性 (2020)
  • Author(s): 添田和優, 青柳健大, 千葉晶彦, 村上勇夫, 石神健太
  • Organizer: 2020年度塑性加工学会 東北・北海道支部 若手研究発表会
• [Presentation] The effect of process conditions on the microstructure of CoCrWMo alloy fabricated by electron beam melting (2020)
  • Author(s): 李晨光, 青柳健大, 千葉晶彦
  • Organizer: 2020年度塑性加工学会 東北・北海道支部 若手研究発表会
• [Presentation] プラズマ回転電極法における粉末粒径に及ぼすプロセス条件の影響 (2020)
  • Author(s): 沼田春子, 崔玉傑, 趙宇凡, 若生公郎, 山中謙太, 千葉晶彦
  • Organizer: 2020年度塑性加工学会 東北・北海道支部 若手研究発表会
• [Presentation] X線イメージングを利用した擬二元系上の組成におけるCrMnFeCoNi合金の分配係数のその場測定 (2020)
  • Author(s): 中野敬太、鳴海大翔、安田秀幸
  • Organizer: 日本金属学会第167回講演大会
• [Presentation] デンドライト成長時の三次元の凝固界面の移動に伴う固液界面積の変化 (2020)
  • Author(s): 鳴海大翔、加藤勇一、河原崎琢也、野々村真誉、安田秀幸
  • Organizer: 日本金属学会第167回講演大会
• [Presentation] In-situ observation of solidification in CrMnFeCoCu alloy by using X-ray imaging techniques (2020)
  • Author(s): 羅力天、中野敬太、鳴海大翔、安田秀幸
  • Organizer: 日本金属学会第167回講演大会
• [Presentation] ハイエントロピー合金の凝固現象 (2020)
  • Author(s): 中野敬太、Luo Litian、山田翔也、鳴海大翔、安田秀幸
  • Organizer: 関西支部鉄鋼プロセス研究会・材料化学研究会令和2年度合同講演会
  • Invited
• [Presentation] 固液界面現象の放射光観察・計測- 観察から3D+XRDへ－ (2020)
  • Author(s): 鳴海大翔、森下浩平、安田秀幸
  • Organizer: 第87回マテリアルズ・テーラリング研究会
• [Presentation] 中性子回折によるオーステナイトステンレス鋼の低サイクル疲労評価 (2020)
  • Author(s): 熊谷正芳、秋田貢一、黒田雅利、ステファヌスハルヨ
  • Organizer: 日本材料学会 第54回Ｘ線材料強度に関するシンポジウム
• [Presentation] TAKUMIを用いたW/Ti繊維強化材料の極低温中性子内部応力評価 (2020)
  • Author(s): 西田真之、ステファヌスハルヨ、川崎卓郎、山下享介
  • Organizer: 日本材料学会 第54回Ｘ線材料強度に関するシンポジウム
• [Presentation] 中性子回折法による中Mn鋼の変形挙動解析 (2020)
  • Author(s): 諸岡聡、山下享介、ステファヌス・ハルヨ，土山聡宏
  • Organizer: 日本鉄鋼協会 第180回秋季講演大会
• [Presentation] J-PARCの工学材料回折装置TAKUMIでの研究動向 (2020)
  • Author(s): ハルヨ ステファヌス、川崎 卓郎、ゴン ウー、山下 享介、諸岡 聡、原田 剛、岩橋 孝明、相澤 一也
  • Organizer: 日本中性子科学会 第20回年会
• [Presentation] Possibility of Bulk Nanostructured Metals as Advanced Structural Material (2020)
  • Author(s): Nobuhiro Tsuji
  • Organizer: 2020 Silk Road International Conference on the Cooperation and Integration of Industry, Education Research and Application
  • Int'l Joint Research / Invited
• [Presentation] 高・中エントロピー合金における変形組織の方位依存性と力学特性の関係 (2020)
  • Author(s): 吉田周平, Fu Rui, Gong Wu, 池内琢人, Bai Yu, 柴田曉伸, Feng Zongqiang, Wu Guilin, Hansen Niels, Huang Xiaoxu, 辻伸泰
  • Organizer: 日本金属学会 2020年春期（第166回）講演大会
• [Presentation] Co20Cr40Ni40 Medium Entropy Alloyにおける圧延変形組織の発達とその結晶方位依存性 (2020)
  • Author(s): 山崎直人, 吉田周平, Bai Yu, Bhattacharjee Pinaki, 辻伸泰
  • Organizer: 日本金属学会 2020年春期（第166回）講演大会
• [Presentation] 4D-CTと回折X線によるCrMnFeCoNi合金のデンドライト成長における優先成長方位の測定 (2020)
  • Author(s): 中野敬太、鳴海大翔、安田秀幸
  • Organizer: 日本金属学会第166回講演大会
• [Presentation] Role of UFG-shell network on improving mechanical properties in harmonic structure material (2020)
  • Author(s): K.Ameyama
  • Organizer: TMS Annual Meeting & Exhibition
  • Int'l Joint Research / Invited
• [Presentation] Powder Metal Technology for High-performance Materials with Harmonic-structure (2020)
  • Author(s): K.Ameyama, D.Orlov
  • Organizer: TMS Annual Meeting & Exhibition
  • Int'l Joint Research / Invited
• [Presentation] Control of Microstructural Singularity for High Perfomance Metallic Materials (2020)
  • Author(s): K.Ameyama
  • Organizer: TMS Annual Meeting & Exhibition
  • Int'l Joint Research / Invited
• [Presentation] Harmonic Structure Design: Creation of Innovative High Performance Metallic Materials (2020)
  • Author(s): K.Ameyama
  • Organizer: The 10th?Pacific Rim International Conference on Advance Materials and Processing (PRICM 10)?
  • Int'l Joint Research / Invited
• [Presentation] Evaluation of misorientation and local deformation in bimodal harmonic structured stainless steel by hybrid imagings of diffraction and refraction contrast using synchrotron radiation X-ray (2020)
  • Author(s): Y. Nakai, S. Kikuchi, D. Shiozawa, K. Nonaka, T. Hase, Y. Nakagawa, K. Ameyama
  • Organizer: TMS Annual Meeting & Exhibition
  • Int'l Joint Research
• [Presentation] 電子ビーム積層造形による非溶接性Ni基超合金インコネル713ELCの割れメカニズム (2020)
  • Author(s): 卞 華康, 趙 宇凡, 崔 玉傑, 青柳 健大, 山中 謙太, 千葉 晶彦
  • Organizer: 日本金属学会 2020年春期講演大会
• [Presentation] 電子ビーム積層造形による非溶接性Ni基超合金インコネル713ELCの割れメカニズム (2020)
  • Author(s): 雷 雨超, 青柳 健大, 青田 欣也, 桑原 孝介, 千葉 晶彦
  • Organizer: 日本金属学会 2020年春期講演大会
• [Presentation] 粉末床溶融結合型電子ビーム積層造形におけるメルトプールの動的挙動 ― レーザー方式との比較 (2020)
  • Author(s): 趙 宇凡, 青柳 健大, 崔 玉傑, 卞 華康, 山中 謙太, 千葉 晶彦
  • Organizer: 日本金属学会 2020年春期講演大会
• [Presentation] Effect of Powder Quality on Defects Suppression in an Additively Manufactured Inconel 718 Alloy - Comparison between Gas Atomized and PREP powders (2020)
  • Author(s): 趙 宇凡, 青柳 健大, 台野 洋平, 山中 謙太, 千葉 晶彦
  • Organizer: 日本金属学会 2020年春期講演大会
• [Presentation] 電子ビーム積層造形における予熱過程のシミュレーション (2020)
  • Author(s): 青柳 健大, 工藤 貴浩, 千葉 晶彦
  • Organizer: 日本金属学会 2020年春期講演大会
• [Presentation] Eliminating Micro-cracking in Inconel 713ELC Fabricated by a Powder-bed-fusion Additive Manufacturing with Electron Beam (2020)
  • Author(s): Y. Lei, K. Aoyagi1, D.-S. Kang, K. Kuwabara, K. Aota, A. Chiba
  • Organizer: TMS2020
  • Int'l Joint Research
• [Presentation] Strengthening of Transformation-induced Plasticity-assisted High Entropy Alloy via Interstitial Nitrogen (2020)
  • Author(s): K. Yamanaka, M. Mori, Y. Onuki, S. Sato, A. Chiba
  • Organizer: TMS2020
  • Int'l Joint Research
• [Presentation] The Development of High Performance Hybrid High Entropy Alloys (HEAs) (2020)
  • Author(s): W. Heng, D. Wei, H. Kato, A. Chiba
  • Organizer: TMS2020
  • Int'l Joint Research
• [Presentation] マルチマテリアル化に向けた金属積層造形技術と表面形態制御 (2020)
  • Author(s): 千葉 晶彦
  • Organizer: 東北大学マルチマテリアル研究拠点 第2回シンポジウム
  • Int'l Joint Research / Invited
• [Presentation] Deformation Behaviors and Microstructure Evolution in HfNbTaTiZr High Entropy Alloy During Thermo-mechanical Processing at Elevated Temperatures (2019)
  • Author(s): Rajeshwar Reddy Eleti
  • Organizer: Beyond Nickel-Based Superalloys III
  • Int'l Joint Research
• [Presentation] Recrystallization behavior of high / medium entropy alloys deformed by high pressure torsion and subsequently annealed (2019)
  • Author(s): Yoshida S., Park N., Tsuji N.
  • Organizer: 7th International Conference on Recrystallization and Grain Growth (Rex&GG 2019)
  • Int'l Joint Research
• [Presentation] Recrystallization behavior of (CoCrMnNi)50Fe50 medium entropy alloy annealed at 600 °C (2019)
  • Author(s): Ondicho I.O., Shon J.H., Yoshida S., Tsuji N., Park N.
  • Organizer: 7th International Conference on Recrystallization and Grain Growth (Rex&GG 2019)
  • Int'l Joint Research
• [Presentation] Strength Ductility Balance in an Ultrafine-Grained Non-Equiatomic Fe50(CoCrMnNi)50 Medium-Entropy Alloy with a Fully Recrystallized Microstructure (2019)
  • Author(s): Nokeun Park, Minku Choi, Ibrahim Ondicho, Nobuhiro Tsuji
  • Organizer: 10th Pacific Rim International Conference on Advance Materials and Processing (PRICM 10)
  • Int'l Joint Research / Invited
• [Presentation] Linking local and heterogeneous deformation behavior to global deformation of materials by in-situ experimental techniques (2019)
  • Author(s): N. Tsuji, M. Park, S. Gao, Y. Bai, Y. Chong
  • Organizer: 40th Risoe International Symposium on Materials Science: Metal Microstructures in 2D, 3D and 4D
  • Invited
• [Presentation] Deformation microstructures and strength of face-centered cubic high/medium entropy alloys (2019)
  • Author(s): S. Yoshida, T. Ikeuchi, Y. Bai, A. Shibata, N. Hansen, X. Huang, N. Tsuji
  • Organizer: 40th Risoe International Symposium on Materials Science: Metal Microstructures in 2D, 3D and 4D
  • Int'l Joint Research
• [Presentation] Microstructural origin of high work-hardenability in ultrafine-grained CoCrNi medium entropy alloy (2019)
  • Author(s): Shuhei YOSHIDA, Genki YAMASHITA, Takuto IKEUCHI, Yu BAI, Akinobu SHIBATA, Nobuhiro TSUJI
  • Organizer: Materials Research Meeting 2019 (Symposium C-1 Fundamental Issues of Structural Materials)
  • Int'l Joint Research
• [Presentation] ハイエントロピー合金の結晶粒超微細化 (2019)
  • Author(s): 辻伸泰，吉田 周平，バイイ
  • Organizer: 粉体粉末冶金協会2 0 1 9 年度春季大会
• [Presentation] Co-Cr-Ni Medium Entropy Alloyの室温変形挙動と積層欠陥エネルギー，摩擦応力の関係 (2019)
  • Author(s): 池内 琢人，吉田 周平，BAI Yu，柴田 暁伸，辻 伸泰
  • Organizer: 日本金属学会2019秋季講演大会
• [Presentation] 完全再結晶超微細粒組織を有する高・中エントロピー合金の作製とその力学特性 (2019)
  • Author(s): 吉田 周平，朴 魯謹，辻 伸泰
  • Organizer: 日本金属学会2019秋季講演大会
• [Presentation] Effect of elements combination on ductility in refractory body-centered cubic medium entropy alloys with quaternary equimolar compositions (2019)
  • Author(s): He Qian，Yoshida Shuhei，Tsuji Nobuhiro
  • Organizer: 日本金属学会2019秋季講演大会
• [Presentation] 高・中エントロピー合金における変形組織発達 (2019)
  • Author(s): 吉田周平, 山崎直人, 池内琢人, Bai Yu, 柴田曉伸, Bhattacharjee Pinaki Prasad, Hansen Niels, Huang Xiaoxu, 辻伸泰
  • Organizer: 高温変形の組織ダイナミクス研究会「2019年度夏の学校」
• [Presentation] 加工熱処理によるハイエントロピー合金のナノ／ミクロ組織制御 (2019)
  • Author(s): 辻伸泰
  • Organizer: 日本金属学会シンポジウム ハイエントロピー合金の材料科学
  • Invited
• [Presentation] Fully Recrystallized Bulk Nanostructured Metals for Managing Both High Strength and Large Ductility (2019)
  • Author(s): Nobuhiro Tsuji
  • Organizer: Xi’an Jiaotong University, Frontier Institute of Science and Technology (FIST)
  • Invited
• [Presentation] Relationship between Local Heterogeneous Deformation Behaviors and Global Deformation of Materials (2019)
  • Author(s): Nobuhiro TSUJI, Myeong-Heom PARK, Si GAO, Yu BAI, Wenqi MAO, Akinobu SHIBATA
  • Organizer: 中国科学院・金属研究所（IMR, CAS）
  • Invited
• [Presentation] Relationship between Local Heterogeneous Deformation Behaviors and Global Deformation of Materials (2019)
  • Author(s): Nobuhiro TSUJI, Myeong-Heom PARK, Si GAO, Yu BAI, Wenqi MAO, Akinobu SHIBATA
  • Organizer: Northeastern University（中国・東北大学）、School of Materials Science & Engineering
  • Invited
• [Presentation] X線イメージングを利用したCrMnFeCoNiハイエントロピー合金の固液界面での分配係数のその場測定 (2019)
  • Author(s): 中野敬太、鳴海大翔、安田秀幸
  • Organizer: 日本金属学会 第165回秋季講演大会
• [Presentation] Cr-Mn-Fe-Co-Ni系合金の凝固現象 (2019)
  • Author(s): 安田秀幸、鳴海大翔、中野敬太、Luo Litian
  • Organizer: 日本金属学会 第165回秋季講演大会
  • Invited
• [Presentation] Unique Mechanical Properties of Harmonic Structure Designed Materials (2019)
  • Author(s): K.Ameyama
  • Organizer: TMS Annual Meeting & Exhibition
  • Int'l Joint Research / Invited
• [Presentation] Temperature Dependence of Harmonic Structure Designed SUS316L austenitic Stainless Steel Deformation (2019)
  • Author(s): Koki Yagi, Morihiro Hariki, Masashi Nakatani, Bhupendra Sharma, Mie Kawabata, Cinzia Menapace, Kei Ameyama
  • Organizer: The 10th Pacific Rim International Conference on Advance Materials and Processing (PRICM 11)?
  • Int'l Joint Research
• [Presentation] Deformation behavior of Harmonic Structure designed SUS316L Austenitic Stainless Steel at Elevated Temparatures (2019)
  • Author(s): Koki Yagi, Morihiro Hariki, Masashi Nakatani, Bhupendra Sharma, Mie Kawabata, Cinzia Menapace, Kei Ameyama
  • Organizer: European Congress and Exhibition on Advanced Materials and Processes (EUROMAT 2019)
  • Int'l Joint Research
• [Presentation] Hamonic Structure Design of Co-Cr-Mo Alloy and its Mechanical Properties (2019)
  • Author(s): Sho Matsumura, Bhupendra Sharma, Mie Kawabata, Kei Ameyama
  • Organizer: MRS conference YUCOMAT2019
  • Int'l Joint Research
• [Presentation] Improvement of Mechanical Properties of Harmonic Structure SUS304L by Thermo-mechanical Process (2019)
  • Author(s): Taishu Tsujino, Masashi Nakatani, Bhupendra Sharma, Mie Kawabata, Kei Ameyama
  • Organizer: MRS conference YUCOMAT2019
  • Int'l Joint Research
• [Presentation] Influence of Deformation Temperature on Mechanical Properties of Harmonic Structure Designed SUS316L Austenitic Stainless Steel (2019)
  • Author(s): Koki Yagi, Morihiro Hariki, Masashi Nakatani, Bhupendra Sharma, Mie Kawabata, Cinzia Menapace, Kei Ameyama
  • Organizer: Materials Research Meeting 2019 (MRM 2019)
  • Int'l Joint Research
• [Presentation] Mechanical Properties of Harmonic Structure Designed CrMnFeCoNi High Entropy Alloy (2019)
  • Author(s): Naoto Togawa、Sharma Bhupendra、Zhang Zhe、Mie Kawabata、Xu Chen、Kei Ameyama
  • Organizer: Materials Research Meeting 2019 (MRM 2019)
  • Int'l Joint Research
• [Presentation] CrMnFeCoNi高エントロピー合金調和組織制御材料の組織と機械的特性 (2019)
  • Author(s): 戸川直人、赤田英里、Sharma Bhupendra、ZhangZhe、川畑美絵、飴山恵
  • Organizer: 日本金属学会 2019年秋期(第165回)講演大会
• [Presentation] 革新的力学特性を示す調和組織材料の高次機能発現メカニズム (2019)
  • Author(s): 飴山惠
  • Organizer: 粉末冶金協会 2019年度春季（第123回）講演大会
• [Presentation] CrMnFeCoNi高エントロピー合金の調和組織制御 (2019)
  • Author(s): 赤田英里、戸川直人、Sharma Bhupendra、Zhang Zhe、川畑美絵、飴山恵
  • Organizer: 粉末冶金協会 2019年度秋季（第124回）講演大会
• [Presentation] Metal 3D Printer for Space Technology (2019)
  • Author(s): A. Chiba
  • Organizer: Global Institute for Materials Research, Tohoku (GIMRT), “Kibo” Users’ Network of JAXA (ISS-“Kibo”) and Aerospace Interdisciplinary Research Center of Tohoku University (AIRC)
  • Int'l Joint Research / Invited
• [Presentation] Behavior of metal powder by electron beam irradiation in electron beam additive manufacturing (2019)
  • Author(s): A. Chiba
  • Organizer: Sendai Albi Knowledge in Engineering Seminars (SAKES)
  • Int'l Joint Research / Invited
• [Presentation] Effects of powder characteristics on parts quality fabricated by using PBF type electron beam additive manufacturing - How does EBM differ from SLM? (2019)
  • Author(s): A. Chiba, K. Aoyagi, K. Yamanaka, Q. Li, Y. Zhao
  • Organizer: ICAMTMI 2019
  • Int'l Joint Research / Invited
• [Presentation] Additive manufacturing of an equiatomic AlCoCrFeNi high-entropy alloy with electron beam melting (2019)
  • Author(s): K. Yamanaka, H. Shiratori, T. Fujieda, K. Kuwabara, A. Chiba
  • Organizer: The 10th Pacific Rim International Conference on Advanced Materials and Processing (PRICM10)
  • Int'l Joint Research / Invited
• [Presentation] Microstructure prediction and evolution of a novel high entropy superalloy (HESA) at elevated temperature (2019)
  • Author(s): L. Ouyang, H. Bian, Y. Cui, K. Yamanaka, A. Chiba
  • Organizer: Summit of Materials Science (SMS) 2019
  • Int'l Joint Research
• [Presentation] Newly developed CoCrFeNiMox high-entropy alloys aided by CALPHAD methods (2019)
  • Author(s): J. Li, K. Yamanaka, K. Aoyagi, H. Bian, A. Chiba
  • Organizer: Summit of Materials Science (SMS) 2019
  • Int'l Joint Research
• [Presentation] Microstructure and strengthening mechanisms of a novel refractory high- entropy alloy HfMoNbTaTi (2019)
  • Author(s): C. Yang, H. Bian, K. Aoyagi, A. Chiba
  • Organizer: Summit of Materials Science (SMS) 2019
  • Int'l Joint Research
• [Presentation] 電子ビーム積層造形により作製した AlFeNiCoCrハイエントロピー合金の組織と材料特性 (2019)
  • Author(s): 山中 謙太, 白鳥 浩史, 藤枝 正, 桑原 孝介, 小泉 雄一郎, 千葉 晶彦
  • Organizer: 粉体粉末冶金協会 2019年度秋季大会
• [Presentation] HfMoNbTaTi 系ハイエントロピー合金の高温酸化挙動 (2019)
  • Author(s): 山中 謙太, 楊 程, 森 真奈美, 卞 華康, 青柳 健大, 千葉 晶彦
  • Organizer: 第5回材料WEEK
• [Presentation] 電子ビーム積層造形での電子ビーム照射による合金粉末の“スモーク”と合金粉末特性の関係 (2019)
  • Author(s): 千葉 晶彦, 青柳 健大, 山中 謙太
  • Organizer: 日本金属学会 2019年秋期講演大会
• [Presentation] 電子ビーム積層造形(EBM)によるNi基合金材料物性と造形性との相関 (2019)
  • Author(s): 久米井 康志, 青柳 健大, 千葉 晶彦
  • Organizer: 日本金属学会 2019年秋期講演大会
• [Presentation] Microstructure and mechanical property studies of a novel refractory high-entropy alloy HfMoNbTaTi (2019)
  • Author(s): 楊 程, 卞 華康, 青柳 健大, 千葉 晶彦
  • Organizer: 日本金属学会 2019年秋期講演大会
• [Presentation] Phase Transformation Mechanisms of Biomedical Co-28Cr-6Mo Alloy Depending on the Thermal History in Electron Beam Powder-bed Additive Manufacturing (2019)
  • Author(s): 趙 宇凡, 小泉 雄一郎, 青柳 健大, 山中 謙太, 千葉 晶彦
  • Organizer: 日本金属学会 2019年秋期講演大会
• [Presentation] The microstructure and mechanical properties of a high entropy superalloy at elevated temperatures (2019)
  • Author(s): 欧陽 凌霄, 卞 華康, 崔 玉傑, 山中 謙太, 青柳 健大, 千葉 晶彦
  • Organizer: 日本金属学会 2019年秋期講演大会
• [Presentation] データ科学手法を用いた純銅の電子ビーム積層造形プロセスの最適化 (2019)
  • Author(s): 青柳 健大, 渡邊 裕文, 澁谷 義孝, 佐藤 賢次, 千葉 晶彦
  • Organizer: 日本金属学会 2019年秋期講演大会
• [Presentation] Development of novel Co-rich high entropy alloys with superior tensile properties (2019)
  • Author(s): D. Wei, W. Heng, H. Kato, A. Chiba
  • Organizer: 粉体粉末冶金協会 2019年度春季大会
• [Presentation] Study on mechanical properties and microstructure of HfMoNbTaTi refractory high-entropy alloy (2019)
  • Author(s): ○楊程, 卞華康, 青柳健大, 千葉晶彦
  • Organizer: 日本金属学会2019年春期講演大会
• [Presentation] Effect of Elemental Combination on Friction Stress and Hall-Petch Relationship in Face-Centered Cubic High / Medium Entropy Alloys (2018)
  • Author(s): ○Shuhei Yoshida,Takuto Ikeuchi, Tilak Bhattacharjee, Yu Bai, Akinobu Shibata, Nobuhiro Tsuji
  • Organizer: 18th International Conference on the Strength of Materials (ICSMA18)
  • Int'l Joint Research
• [Presentation] Microstructure Control and Resultant Change in Mechanical Properties in High Entropy Alloys (2018)
  • Author(s): ◯Nobuhiro Tsuji, Tilak Bhattacharjee, Yu Bai, Nokeun Park, Shu Kurokawa, Pinaki Bhattacharjee, Rajeshwar Eleti, Shuhei Yoshida
  • Organizer: Materials Research Society (MRS) Fall Meeting 2018
  • Int'l Joint Research / Invited
• [Presentation] Thermo-mechanical processing strategies for managing strength-ductility in a nano-lamellar AlCoCrFeNi2.1 eutectic high entropy alloy (2018)
  • Author(s): ◯P.P. Bhattacharjee, T. Bhattacharjee, I.S. Wani, S.R. Reddy, S. Sheikh, S. Guo, N. Tsuji
  • Organizer: The 2nd International Conference on High-Entropy Materials (ICHM 2018)
  • Int'l Joint Research / Invited
• [Presentation] Hot Deformation Behaviors of HfNbTaTiZr Refractory High Entropy Alloy (2018)
  • Author(s): ◯Rajeshwar Reddy Eleti, Tilak Bhattacharjee, Nobuhiro Tsuji
  • Organizer: The 2nd International Conference on High-Entropy Materials (ICHM 2018)
  • Int'l Joint Research / Invited
• [Presentation] Effect of Co-contents on mechanical properties of non-equiatomic Co-Cr-Ni Medium entropy alloys (2018)
  • Author(s): ◯Takuto Ikeuchi, Shuhei Yoshida, Yu Bai, Nobuhiro Tsuji
  • Organizer: The 2nd International Conference on High-Entropy Materials (ICHM 2018)
  • Int'l Joint Research / Invited
• [Presentation] Possibility of Microstructure Control by Thermo-mechanically Controlled Processes in High Entropy Alloys (2018)
  • Author(s): ◯Nobuhiro Tsuji, Nokeun Park, Tilak Bhattacharjee, Shuhei Yoshida, Rajeshwar Eleti, Yu Bai, Shu Kurokawa, Pinaki Bhattacharjee
  • Organizer: TMS 2019 148th Annual Meeting & Exhibition
  • Int'l Joint Research / Invited
• [Presentation] ハイエントロピー合金におけるミクロ組織制御の可能性 (2018)
  • Author(s): ○辻 伸泰
  • Organizer: 日本金属学会2018秋期講演大会
  • Invited
• [Presentation] High / Medium entropy alloyの摩擦応力に及ぼす元素の組合せの影響 (2018)
  • Author(s): ○吉田周平，池内琢人，BHATTACHARJEE Tilak，BAI Yu，柴田曉伸，辻 伸泰
  • Organizer: 日本金属学会2018秋期講演大会
• [Presentation] ハイエントロピー合金とその可能性 (2018)
  • Author(s): ○辻 伸泰
  • Organizer: 日本金属学会若手研究グループ 第２回研究会 「多様な先端観察・測定法を用いた組織の定量と力学特性解析への適用」
  • Invited
• [Presentation] 新しい材料設計：ハイエントロピー合金 (2018)
  • Author(s): 乾 晴行，辻 伸泰
  • Organizer: 京都大学アカデミックデイ2018
• [Presentation] 調和組織制御されたFe-0.3mass%炭素鋼の熱処理による組織変化と力学特性 (2018)
  • Author(s): 堀憲太，川畑美絵，飴山惠
  • Organizer: 日本鉄鋼協会第176回秋季講演大会
• [Presentation] 電子ビーム積層造形を用いて作製したTi-6Al-4V合金の耐食性に及ぼす造形後熱処理の影響 (2018)
  • Author(s): ○山中謙太, 森真奈美, 千葉晶彦
  • Organizer: 粉体粉末冶金協会平成30年度秋季大会
• [Presentation] In-situ Synchrotron X-ray Diffraction Line-profile Analysis during Tensile Deformation in Additively Manufactured Ti-6Al-4V Alloy (2018)
  • Author(s): ○K. Yamanaka, A. Kuroda, M. Itoh, M. Mori, T. Shobu, S. Sato, A. Chiba
  • Organizer: MS&T 2018
  • Int'l Joint Research
• [Presentation] Effect of gamma-phase stability on the property of Co-Ni-based high-entropy superalloys with varying Ni contents (2018)
  • Author(s): ○李家翔, 小泉雄一郎, 青柳健大, 山中謙太, 千葉晶彦
  • Organizer: 日本金属学会2018年秋期講演大会
• [Presentation] Grain Morphology and Texture Formation in a Co-Cr-Mo Alloy Fabricated by Electron Beam Melting (2018)
  • Author(s): ○趙宇凡, 小泉雄一郎, 青柳健大, 千葉晶彦
  • Organizer: 日本金属学会2018年秋期講演大会
• [Presentation] 電子ビーム積層造形における残留応力および「スモーク」を同時に除去するための予熱温度制御技術の探索 (2018)
  • Author(s): ○千葉晶彦, 青柳健大, 山中謙太
  • Organizer: 日本金属学会2018年秋期講演大会
• [Presentation] PREP 法による金属積層造形用球状粉末の作製技術 (2018)
  • Author(s): ○王昊, 若生公郎, 佐藤司, 青柳健大, 山中謙太, 千葉晶彦
  • Organizer: 日本金属学会2018年秋期講演大会
• [Presentation] Study on mechanical properties and microstructure of high-entropy alloys with high melting point (2018)
  • Author(s): ○楊程, 青柳健大, 千葉晶彦
  • Organizer: 日本金属学会2018年秋期講演大会
• [Presentation] Application of TMP to Harmonic Structure Designed Materials (2018)
  • Author(s): ○K.Ameyama, M.Nakatani, M.O.Kawabata, G.Dirras
  • Organizer: International Conference on PROCESSING & MANUFACTURING OF ADVANCED MATERIALS
  • Int'l Joint Research / Invited
• [Presentation] Microstructure evolution of commercially pure titanium during electron beam additive manufacturing (2018)
  • Author(s): ○K. Yamanaka, M. Mori, S. Sato, A. Chiba
  • Organizer: THERMEC' 2018
  • Int'l Joint Research / Invited
• [Book] ハイエントロピー合金 カクテル効果が生み出す多彩な新物性 (2020)
  • Author(s): 乾 晴行
  • Total Pages: 296
  • Publisher: 内田老鶴圃
  • ISBN: 9784753651375
• [Book] ハイエントロピー合金 (2020)
  • Author(s): 乾 晴行編著；飴山 恵、辻 伸泰、安田秀幸、吉田周平
  • Total Pages: 296
  • Publisher: 内田老鶴圃
  • ISBN: 9784753651375
• [Remarks] 京都大学 辻研究室
  • URL: http://www.tsujilab.mtl.kyoto-u.ac.jp
• [Remarks] 京都大学 安田研究室
  • URL: http://cast.mtl.kyoto-u.ac.jp
• [Remarks] 立命館大学 飴山研究室
  • URL: http://www.ritsumei.ac.jp/~ameyama/html
• [Remarks] 東北大学金属材料研究所 千葉研究室
  • URL: http://www.chibalab.imr.tohoku.ac.jp
• [Remarks] 立命館大学 飴山研究室
  • URL: http://www.amelab.se.ritsumei.ac.jp
• [Remarks] 京都大学 辻研究室
  • URL: http://www.tsujilab.mtl.kyoto-u.ac.jp/