Study on the deformation process and macroscopic mechanical response of LPSO structures by multiscale computational mechanics

• Project Area: Materials Science of synchronized LPSO structure -Innovative Development of Next-Generation Lightweight Structural Materials-
• Project/Area Number: 23109009
• 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: Kitami Institute of Technology
• Principal Investigator: Ohashi Tetsuya 北見工業大学, 工学部, 教授 (80312445)
• Co-Investigator(Kenkyū-buntansha): SHIZAWA Kazuyuki 慶應義塾大学, 理工学部, 教授 (80211952) ; MATSUMOTO Ryosuke 京都大学, 工学(系)研究科(研究院), 講師 (80363414)
• Co-Investigator(Renkei-kenkyūsha): MAYAMA Tsuyoshi 熊本大学, 工学部, 准教授 (40333629)
• Project Period (FY): 2011-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥95,290,000 (Direct Cost: ¥73,300,000、Indirect Cost: ¥21,990,000); Fiscal Year 2015: ¥14,170,000 (Direct Cost: ¥10,900,000、Indirect Cost: ¥3,270,000); Fiscal Year 2014: ¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000); Fiscal Year 2013: ¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000); Fiscal Year 2012: ¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000); Fiscal Year 2011: ¥28,730,000 (Direct Cost: ¥22,100,000、Indirect Cost: ¥6,630,000)
• Keywords: キンク変形 / すべり変形 / 転位 / 回位 / 初期不均一性 / マルチスケール解析 / 結晶塑性解析 / 原子シミュレーション / 微視組織 / 原子構造 / 強度特性 / 格子欠陥 / 結晶塑性

Outline of Final Research Achievements

Strength and ductility of Mg/LPSO alloys are significantly improved after extrusion process. Crystal orientation of the LPSO phase was aligned and kink deformation was observed after the extrusion. In this study, we examined the process of kink deformation and macroscopic mechanical responses of the LPSO phase material by molecular dynamics simulation and crystal plasticity analyses.
Results show that slip deformation on basal system develops from initial inhomogeneities and grows into a band shaped deformation pattern of kink. Strain hardening and geometric softening of slip deformation were shown to control the extent and pattern of kinking. It was also shown that the deformation anisotropy of LPSO phase was suppressed by kinking and this was assumed to contribute toward the improved strength and ductility of the extruded Mg/LPSO alloys.

Research Products

• [Journal Article] Investigation on Position of Kink Band Formation in Single Crystal of Mg-Based LPSO Phase Using Dislocation-Based Crystal Plasticity Simulation (2016)
  • Author(s): 上田亮, 志澤一之
  • Journal Title: Journal of the Society of Materials Science, Japan Volume: 65 Issue: 3 Pages: 220-227
  • DOI: 10.2472/jsms.65.220
  • NAID: 130005133787
  • ISSN: 0514-5163, 1880-7488
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Orientation dependence of the deformation kink band formation behavior in Zn single crystal (2016)
  • Author(s): Koji Hagihara
  • Journal Title: International Journal of Plasticity Volume: 77 Pages: 174-191
  • DOI: 10.1016/j.ijplas.2015.10.005
  • Peer Reviewed
• [Journal Article] Basal Dislocation Nucleated from a Free Surface of an Elliptic Cylindrical Mg Single Crystal (2016)
  • Author(s): 浦長瀬正幸，松本龍介
  • Journal Title: Journal of the Society of Materials Science, Japan Volume: 65 Issue: 2 Pages: 135-140
  • DOI: 10.2472/jsms.65.135
  • NAID: 130005126265
  • ISSN: 0514-5163, 1880-7488
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Effects of normal stresses on the homogeneous nucleation of a basal dislocation in magnesium (2016)
  • Author(s): M. Uranagase, R. Matsumoto
  • Journal Title: Computational Materials Science Volume: 113 Pages: 143-147
  • DOI: 10.1016/j.commatsci.2015.11.031
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Tension–compression asymmetry in uniaxial deformation of a magnesium bicrystal with [-1100] symmetric tilt grain boundary (2016)
  • Author(s): M. Uranagase, R. Matsumoto
  • Journal Title: Computational Materials Science Volume: 118 Pages: 124-132
  • DOI: 10.1016/j.commatsci.2016.03.012
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] A Dislocation-based Crystal Plasticity Simulation on Kink Band Formation in Single Crystal of Mg-Based LPSO Phase (2015)
  • Author(s): 上田亮, 志澤一之
  • Journal Title: Journal of the Society of Materials Science, Japan Volume: 64 Issue: 4 Pages: 295-302
  • DOI: 10.2472/jsms.64.295
  • NAID: 130005064891
  • ISSN: 0514-5163, 1880-7488
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Deformation Analysis of the Long-Period Stacking-Ordered Phase by Using Molecular Dynamics Simulations: Kink Deformation under Compression and Kink Boundary Migration under Tensile Strain (2015)
  • Author(s): R. Matsumoto, M. Uranagase
  • Journal Title: MATERIALS TRANSACTIONS Volume: 56 Issue: 7 Pages: 957-962
  • DOI: 10.2320/matertrans.MH201408
  • NAID: 130005083540
  • ISSN: 1345-9678, 1347-5320
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] In-Situ Observation on the Formation Behavior of the Deformation Kink Bands in Zn Single Crystal and LPSO Phase (2015)
  • Author(s): K. Hagihara, M. Honnnami, R. Matsumoto, Y. Fukusumi, H. Izuno, M. Yamasaki, T. Okamoto, T. Nakano, Y. Kawamura
  • Journal Title: MATERIALS TRANSACTIONS Volume: 56 Issue: 7 Pages: 943-951
  • DOI: 10.2320/matertrans.MH201412
  • NAID: 130005083571
  • ISSN: 1345-9678, 1347-5320
  • Peer Reviewed / Open Access
• [Journal Article] Crystal Plasticity Analysis of Development of Intragranular Misorientations due to Kinking in HCP Single Crystals Subjected to Uniaxial Compressive Loading (2015)
  • Author(s): T.Mayama, T.Ohashi, Y.Tadano, K.Hagihara
  • Journal Title: MATERIALS TRANSACTIONS Volume: 56 Issue: 7 Pages: 963-972
  • DOI: 10.2320/matertrans.MH201403
  • NAID: 130005083545
  • ISSN: 1345-9678, 1347-5320
  • Peer Reviewed / Open Access
• [Journal Article] Molecular Chain Plasticity Model Similar to Crystal Plasticity Theory Based on Change in Local Free Volume and FE Simulation of Glassy Polymer (2015)
  • Author(s): H. Nada, H. Hara, Y. Tadano and K. Shizawa
  • Journal Title: International Journal of Mechanical Science Volume: 93 Pages: 120-135
  • DOI: 10.1016/j.ijmecsci.2014.12.018
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Three-dimensional FE Analysis Using Homogenization Method for Ductile Polymers Based on Molecular Chain Plasticity Model Considering Craze Evolution (2015)
  • Author(s): Hara, H. and K. Shizawa
  • Journal Title: Advanced Structured Materials Volume: 印刷中
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] In-situ Observation of the Formation Behavior of the Deformation Kink Bands in Zn Single Crystal and LPSO Phase (2015)
  • Author(s): K. Hagihara, M. Honnnami, R. Matsumoto, Y. Fukusumi, H. Izuno, M. Yamasaki, T. Okamoto,, Y. Kawamura
  • Journal Title: Mater. Trans. Volume: 56
  • NAID: 130005083571
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Investigation on Intragranular Stress of Mg Including Several Twin-bands Using Dislocation-based Crystal Plasticity and Phase-field Models (2015)
  • Author(s): R. Kondo, Y. Tadano and K. Shizawa
  • Journal Title: Key Engineering Materials Volume: 626 Pages: 246-251
  • DOI: 10.4028/www.scientific.net/kem.626.246
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] A Dislocation-based Crystal Plasticity Simulation on Kink Band Formation and Evolution in Polycrystalline Mg Alloy with LPSO Phase (2015)
  • Author(s): R. Ueta and K. Shizawa
  • Journal Title: Key Engineering Materials Volume: 626 Pages: 281-286
  • DOI: 10.4028/www.scientific.net/kem.626.281
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Fracture Prediction Simulation for Crystalline Polymer Using Homogenized Molecular Chain Plasticity and Craze Evolution Models (2015)
  • Author(s): H. Hara and K. Shizawa
  • Journal Title: Key Engineering Materials Volume: 626 Pages: 193-198
  • DOI: 10.4028/www.scientific.net/kem.626.193
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] A Phase-field Model of Twinning and Detwinning Coupled with Dislocation-based Crystal Plasticity for HCP Metals (2014)
  • Author(s): R. Kondo , Y. Tadano and K. Shizawa
  • Journal Title: Computational Materials Science Volume: 95 Pages: 672-683
  • DOI: 10.1016/j.commatsci.2014.08.034
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Thermal activation analysis of enthalpic and entropic contributions to activation free energy of basal and prismatic slips in Mg (2014)
  • Author(s): M. Uranagase, R. Matsumoto
  • Journal Title: Physical Review B Volume: 89 Issue: 22 Pages: 224103-224103
  • DOI: 10.1103/physrevb.89.224103
  • Peer Reviewed
• [Journal Article] マルチスケールおよびマルチフィジックス結晶塑性解析 (2014)
  • Author(s): 志澤一之
  • Journal Title: ふぇらむ Volume: 119 Pages: 835-840
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] マグネシウム単結晶中での転位ループ生成の解析 －原子シミュレーションによるアプローチ－ (2014)
  • Author(s): 浦長瀬正幸, 松本龍介
  • Journal Title: 材料 Volume: 63 Pages: 194-200
  • NAID: 130003393241
  • Peer Reviewed
• [Journal Article] Microscopic mechanism of plastic deformation in a polycrystalline Co-Cr-Mo alloy with a single hcp phase (2014)
  • Author(s): Hiroaki Matsumoto, Yuichiro Koizumi, Tetsuya Ohashi, Byong-Soo Lee, Yunping Li and Akihiko Chiba
  • Journal Title: Acta Materialia Volume: 64 Pages: 1-11
  • DOI: 10.1016/j.actamat.2013.11.005
  • Peer Reviewed
• [Journal Article] Phase-field Simulation of Static Recrystallization Considering Nucleation from Subgrains and Nucleus Growth with Incubation Period (2014)
  • Author(s): M. Muramatsu, Y. Aoyagi, T. Tadano and K. Shizawa
  • Journal Title: Computational Materials Science Volume: 87 Pages: 112-122
  • DOI: 10.1016/j.commatsci.2014.02.003
  • Peer Reviewed
• [Journal Article] Molecular Dynamics Analyses of Deformation Behavior of Long-Period-Stacking-Ordered Structures (2013)
  • Author(s): R. Matsumoto, M. Uranagase, N. Miyazaki
  • Journal Title: MATERIALS TRANSACTIONS Volume: 54 Issue: 5 Pages: 686-692
  • DOI: 10.2320/matertrans.MI201211
  • NAID: 10031168411
  • ISSN: 1345-9678, 1347-5320
  • Peer Reviewed
• [Journal Article] Activation Free Energy of Nucleation of a Dislocation Pair in Magnesium (2013)
  • Author(s): M. Uranagase, S. Kamigaki, R. Matsumoto, N. Miyazaki
  • Journal Title: MATERIALS TRANSACTIONS Volume: 54 Issue: 5 Pages: 680-685
  • DOI: 10.2320/matertrans.MI201213
  • NAID: 10031168410
  • ISSN: 1345-9678, 1347-5320
  • Peer Reviewed
• [Journal Article] A multiscale approach for the deformation mechanism in pearlite microstructure (2013)
  • Author(s): T. Ohashi, L. Roslan, K. Takahashi, T. Shimokawa, M. Tanaka and K. Higashida
  • Journal Title: Mater. Sci. Eng. A Volume: 588 Pages: 214-220
  • DOI: 10.1016/j.msea.2013.09.032
  • Peer Reviewed
• [Journal Article] ミクロンスケールの塑性力学 (2013)
  • Author(s): 大橋鉄也，黒田充紀
  • Journal Title: 日本塑性加工学会誌 Volume: 54 Pages: 901-905
  • NAID: 120005983940
  • Peer Reviewed
• [Journal Article] Modeling and Simulation on Ultrafine-graining Based on Multiscale Crystal Plasticity Considering Dislocation Patterning (2013)
  • Author(s): Y. Aoyagi, R. Kobayashi, Y. Kaji and K. Shizawa
  • Journal Title: International Journal of Plasticity Volume: 47 Pages: 13-28
  • DOI: 10.1016/j.ijplas.2012.12.007
  • Peer Reviewed
• [Journal Article] Evolution of Dislocation Patterns in a Tricrytal Model Subjected to Cyclic Loading (2013)
  • Author(s): Tetsuya Ohashi
  • Journal Title: Philosohical Magazine Volume: 93 Issue: 4 Pages: 366-387
  • DOI: 10.1080/14786435.2012.721017
  • Peer Reviewed
• [Journal Article] Dislocation-Based Crystal Plasticity Modeling and Simulation for HCP Metals Considering Evolution of Twin-Microstructure (2012)
  • Author(s): 近藤瑠歩
  • Journal Title: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A Volume: 78 Issue: 792 Pages: 1157-1172
  • DOI: 10.1299/kikaia.78.1157
  • NAID: 130002050342
  • ISSN: 0387-5008, 1884-8338
  • Peer Reviewed
• [Journal Article] Simulation on Nanostructured Metals Based on Multiscale Crystal Plasticity Considering Effect of Grain Boundary (2012)
  • Author(s): Aoyagi, Y., Shimokawa, T., Shizawa, K., Kaji, Y.
  • Journal Title: Materials Science Forum Volume: 706-709 Pages: 1751-1756
  • DOI: 10.4028/www.scientific.net/msf.706-709.1751
  • Peer Reviewed
• [Journal Article] Formulation of Balance Laws as Mixture Theory for Nuclei and Matrix in Recrystallization (2012)
  • Author(s): 村松眞由
  • Journal Title: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A Volume: 78 Issue: 789 Pages: 742-757
  • DOI: 10.1299/kikaia.78.742
  • NAID: 130002050299
  • ISSN: 0387-5008, 1884-8338
  • Peer Reviewed
• [Journal Article] Application of Mixture Rule to Finite Element Simulation for Forging of Mg-Zn-Y Alloys with Long Period Stacking Ordered Structure (2012)
  • Author(s): R. Matsumoto, M. Otsu, M. Yamasaki, T. Mayama, H. Utsunomiya, Y. Kawamura
  • Journal Title: Materials Science and Engineering A Volume: Vol. 548 Pages: 75-82
  • DOI: 10.1016/j.msea.2012.03.088
  • Peer Reviewed
• [Journal Article] Crystal plasticity analysis of texture development in magnesium alloy during extrusion (2011)
  • Author(s): T.Mayama, M.Noda, R.Chiba, M.Kuroda
  • Journal Title: International Journal of Plasticity Volume: 27 Issue: 12 Pages: 1916-1935
  • DOI: 10.1016/j.ijplas.2011.02.007
  • Peer Reviewed
• [Presentation] 押出加工を受けたLPSO型マグネシウム合金に生ずる変形帯とその効果に関する計算力学的検討 (2016)
  • Author(s): 大橋鉄也
  • Organizer: 日本機械学会計算力学部門A-TS01-15研究会
  • Place of Presentation: 東北大学東京分室，東京
  • Year and Date: 2016-03-11
  • Invited
• [Presentation] 対称傾角粒界を有するマグネシウム双結晶の一軸変形の分子動力学解析 (2015)
  • Author(s): 浦長瀬正幸、松本龍介
  • Organizer: 日本機械学会（M&M2015材料力学カンファレンス）
  • Place of Presentation: 慶應義塾大学 矢上キャンパス
  • Year and Date: 2015-11-23
• [Presentation] 二軸圧縮負荷を受けるLPSO型Mg合金の結晶塑性解析 (2015)
  • Author(s): 眞山 剛、大橋鉄也、山崎倫昭、河村能人
  • Organizer: 日本機械学会M&M2015材料力学カンファレンス
  • Place of Presentation: 慶應義塾大学・矢上キャンパス
  • Year and Date: 2015-11-23
• [Presentation] Mg基LPSO相に形成する変形帯に関する考察 (2015)
  • Author(s): 萩原幸司、岡本拓也、伊津野仁史、眞山 剛、山崎倫昭、大橋鉄也、中野貴由、河村能人
  • Organizer: 軽金属学会第129回秋期大会
  • Place of Presentation: 日本大学生産工学部・津田沼キャンパス
  • Year and Date: 2015-11-22
• [Presentation] CRSSの寸法依存性を考慮したMg基LPSO相単結晶のマイクロピラーに対する転位-結晶塑性FEM解析 (2015)
  • Author(s): 宇塚友亮, 上田亮, 志澤一之
  • Organizer: 日本機械学会M&M2015材料力学カンファレンス
  • Place of Presentation: 慶應義塾大学矢上キャンパス, 横浜
  • Year and Date: 2015-11-21
• [Presentation] α鉄における格子欠陥と水素の相互作用解析 ～空孔・表面・転位・粒界と水素～ (2015)
  • Author(s): 松本龍介
  • Organizer: 日本物理学会 格子欠陥フォーラム「材料の強化と劣化のサイエンス」（併設：新学術領域研究「シンクロ型LPSO構造の材料科学」第6回若手交流会・特別講演会）
  • Place of Presentation: 大阪大学豊中キャンパス
  • Year and Date: 2015-10-15
  • Invited
• [Presentation] Crystal plasticity modelling of deformation behavior of cast Mg-Zn-Y polycrystals with LPSO phase (2015)
  • Author(s): T.Mayama, T.Ohashi, R.Arima, K.Kamura, M.Yamasaki, Y.Kawamura
  • Organizer: The 10th International Conference on Magnesium Alloys and Their Applications(Mg2015)
  • Place of Presentation: Jeju, Korea
  • Year and Date: 2015-10-11
  • Int'l Joint Research
• [Presentation] Quantitative Study on Dislocation Nucleation as an Elementary Process of Kink Band Formation (2015)
  • Author(s): M. Uranagase, R. Matsumoto
  • Organizer: The 10th International Conference on Magnesium Alloys and Their Applications(Mg2015)
  • Place of Presentation: Jeju, Korea
  • Year and Date: 2015-10-11
  • Int'l Joint Research
• [Presentation] Molecular Dynamics Study of the Influence of Chemical Order on the Deformation Behavior of Synchronized-LPSO Phase (2015)
  • Author(s): R. Matsumoto, Y. Nishioka, M. Uranagase
  • Organizer: The 10th International Conference on Magnesium Alloys and Their Applications (Mg2015)
  • Place of Presentation: Jeju, Korea
  • Year and Date: 2015-10-11
  • Int'l Joint Research
• [Presentation] 変形履歴を考慮したLPSO相単相材料の力学特性に関する結晶塑性解析 (2015)
  • Author(s): 大橋鉄也、○金澤裕一、眞山 剛、安田洋平、佐藤満弘
  • Organizer: 日本機械学会第27回計算力学講演会
  • Place of Presentation: 横浜国立大学
  • Year and Date: 2015-10-11
• [Presentation] Multi-phase-field モデルおよび転位-結晶塑性モデルに基づくLPSO 型Mg 二相合金のα-Mg 相に対する動的再結晶シミュレーション (2015)
  • Author(s): 木村祐一, 鯨井翔, 上田亮, 志澤一之
  • Organizer: 日本機械学会第28回計算力学講演会
  • Place of Presentation: 横浜国立大学, 横浜
  • Year and Date: 2015-10-10
• [Presentation] 金属薄膜に吸着した水素原子が誘起する転位運動の分子動力学法による検討 (2015)
  • Author(s): 松本龍介、岸本直樹、浦長瀬正幸
  • Organizer: 日本鉄鋼協会 材料の組織と特性部会「水素脆化の基本要因と特性評価」研究会・「水素脆化の解析と評価」フォーラム共催シンポジウム「水素脆化の基本要因、解析と評価」
  • Place of Presentation: 九州大学伊都キャンパス
  • Year and Date: 2015-09-17
• [Presentation] マグネシウム中での粒界からの転位射出についての原子シミュレーションによる検討 (2015)
  • Author(s): 浦長瀬正幸、松本龍介
  • Organizer: 日本金属学会（2015年秋期大会（第157回）日本金属学会講演大会）
  • Place of Presentation: 九州大学伊都キャンパス
  • Year and Date: 2015-09-17
• [Presentation] 二軸圧縮負荷を受けるLPSO型Mg合金に導入される方位変動の結晶塑性解析 (2015)
  • Author(s): 眞山 剛、大橋鉄也、山崎倫昭、河村能人
  • Organizer: 日本金属学会2015年秋期大会
  • Place of Presentation: 九州大学・伊都キャンパス
  • Year and Date: 2015-09-16
• [Presentation] キンク変形帯が示す結晶学的特徴，力学特性への寄与 (2015)
  • Author(s): 萩原幸司、眞山 剛、本浪雅史、山崎倫昭、伊津野仁史、岡本拓也、大橋鉄也、中野貴由、河村能人
  • Organizer: 日本金属学会2015年秋期大会
  • Place of Presentation: 九州大学・伊都キャンパス
  • Year and Date: 2015-09-16
• [Presentation] Atomistic study of kink deformation mechanisms of the long-period stacking-ordered phase (2015)
  • Author(s): R. Matsumoto, M. Uranagase
  • Organizer: The International Conference <<Advanced Materials Week-2015>> (AMW2015)
  • Place of Presentation: Togliatti-St.Petersburg, Russia
  • Year and Date: 2015-06-17
  • Int'l Joint Research / Invited
• [Presentation] Crystal plasticity finite element analyses on the development of deformation bands in LPSO phase in extruded magnesium alloys and their mechanical effects in later deformation (2015)
  • Author(s): T. Ohashi, T. Mayama, Y. Yasuda and Y. Kanazawa
  • Organizer: The International Conference <<Advanced Materials Week-2015>> (AMW2015)
  • Place of Presentation: Togliatti-St.Petersburg, Russia
  • Year and Date: 2015-06-17
  • Int'l Joint Research / Invited
• [Presentation] Crystal plasticity analysis of kinking in HCP metals subjected to uniaxial compression (2015)
  • Author(s): T. Mayama, T. Ohashi, Y. Tadano, K. Hagihara
  • Organizer: The International Conference <<Advanced Materials Week-2015>> (AMW2015)
  • Place of Presentation: Togliatti-St.Petersburg, Russia
  • Year and Date: 2015-06-17
  • Int'l Joint Research / Invited
• [Presentation] Characteristic features of the deformation band formed in the synchronized LPSO phase (2015)
  • Author(s): K. Hagihara, M. Honnami, T. Okamoto, M. Yamasaki, T. Mayama, H. Izuno, T. Nakano, T. Ohashi, Y. Kawamura
  • Organizer: The International Conference <<Advanced Materials Week-2015>> (AMW2015)
  • Place of Presentation: Togliatti-St.Petersburg, Russia
  • Year and Date: 2015-06-17
  • Int'l Joint Research / Invited
• [Presentation] 転位-結晶塑性FEM解析に基づくMg基LPSO相中のキンク帯形成およびそのメッシュ依存性に関する検討 (2015)
  • Author(s): 上田亮, 志澤一之
  • Organizer: 日本塑性加工学会平成27年度塑性加工春季講演会
  • Place of Presentation: 慶應義塾大学矢上キャンパス, 横浜
  • Year and Date: 2015-05-29
• [Presentation] 薄膜表面に吸着した水素原子が誘起する転位運動 (2015)
  • Author(s): 松本龍介、岸本直樹、浦長瀬正幸
  • Organizer: 日本材料学会（第20回分子動力学シンポジウム）
  • Place of Presentation: 山形大学米沢キャンパス
  • Year and Date: 2015-05-22
• [Presentation] 粒界・自由表面を有するマグネシウム結晶の一軸変形挙動 (2015)
  • Author(s): 浦長瀬正幸、松本龍介
  • Organizer: 日本材料学会（第20回分子動力学シンポジウム）
  • Place of Presentation: 山形大学米沢キャンパス
  • Year and Date: 2015-05-22
• [Presentation] Atomistic Analyses of Nucleation and Propagation Behavior of Ridge Shaped Kink Band in Long-Period-Stacking-Ordered Phase (2015)
  • Author(s): R. Matsumoto, M. Uranagase
  • Organizer: The 12th International Conference on the Mechanical Behavior of Materials (ICM12)
  • Place of Presentation: Karlsruhe, Germany
  • Year and Date: 2015-05-10
  • Int'l Joint Research
• [Presentation] Quantitative Evaluation of Dislocation Nucleation as Thermal Activation Process via Atomistic Simulations (2015)
  • Author(s): M. Uranagase, R. Matsumoto
  • Organizer: The 12th International Conference on the Mechanical Behavior of Materials (ICM12)
  • Place of Presentation: Karlsruhe, Germany
  • Year and Date: 2015-05-10
  • Int'l Joint Research
• [Presentation] Multi-phase-field・転位-結晶塑性モデルを用いたMg97Zn1Y2合金押出材に対する双晶・キンク変形のFEM解析 (2015)
  • Author(s): 近藤瑠歩, 野口量介, 森川龍哉, 東田賢二, 志澤一之
  • Organizer: 日本金属学会2015年春期講演大会
  • Place of Presentation: 東京大学駒場
  • Year and Date: 2015-03-18 – 2015-03-20
• [Presentation] 転位密度ベースのモデリングに基づく結晶塑性有限要素解析 (2014)
  • Author(s): 大橋鉄也
  • Organizer: 日本材料学会分子動力学部門委員会研究会
  • Place of Presentation: 京都大学東京オフィス
  • Year and Date: 2014-12-26
  • Invited
• [Presentation] 分子動力学シミュレーションを用いた新奇Mg合金の変形挙動解析 (2014)
  • Author(s): 西岡祐一郎、松本龍介、浦長瀬正幸
  • Organizer: 日本材料学会関西支部（第9回若手シンポジウム）
  • Place of Presentation: 大津市、アーブしが
  • Year and Date: 2014-12-05 – 2014-12-06
• [Presentation] 結晶塑性Cosseratモデルを用いたLPSO型Mg多結晶合金におけるキンク帯形成シミュレーション (2014)
  • Author(s): 知場啓志, 田尻聡太郎, 志澤一之
  • Organizer: 第58回日本学術会議材料工学連合講演会
  • Place of Presentation: 京都テルサ
  • Year and Date: 2014-11-22 – 2014-11-24
• [Presentation] Mg基LPSO相単結晶における変形の初期方位依存性に関する転位-結晶塑性FEM解析と実験結果との比較 (2014)
  • Author(s): 池田恵子, 上田亮, 志澤一之
  • Organizer: 日本機械学会第27回計算力学講演会
  • Place of Presentation: 岩手大学
  • Year and Date: 2014-11-22 – 2014-11-24
• [Presentation] GPGPUを用いたMulti-phase-fieldモデルおよび転位-結晶塑性モデルに基づく動的再結晶シミュレーション (2014)
  • Author(s): 鯨井翔, 御園生大介, 志澤一之
  • Organizer: 日本機械学会第27回計算力学講演会
  • Place of Presentation: 岩手大学
  • Year and Date: 2014-11-22 – 2014-11-24
• [Presentation] 原子シミュレーションによる金属単結晶中の転位生成に対する垂直応力の影響の定量的評価 (2014)
  • Author(s): 浦長瀬正幸、松本龍介
  • Organizer: 日本機械学会（第27回計算力学講演会）
  • Place of Presentation: 岩手大学
  • Year and Date: 2014-11-22 – 2014-11-24
• [Presentation] 原子モデルを用いたMg-Zn-Y系の10H型積層LPSO相の変形解析 (2014)
  • Author(s): 西岡祐一郎、松本龍介、浦長瀬正幸
  • Organizer: 日本機械学会（第27回計算力学講演会）
  • Place of Presentation: 岩手大学
  • Year and Date: 2014-11-22 – 2014-11-24
• [Presentation] LPSO型マグネシウム合金の微視組織に生ずる変形に関する連続体力学解析 (2014)
  • Author(s): 大橋鉄也、安田洋平、眞山剛
  • Organizer: 日本材料学会 第58回日本学術会議材料工学連合講演会
  • Place of Presentation: 京都テルサ
  • Year and Date: 2014-10-27 – 2014-10-28
• [Presentation] 原子シミュレーションによる種々の応力環境下でのマグネシウム単結晶中の転位生成の定量的解析 (2014)
  • Author(s): 浦長瀬正幸、松本龍介
  • Organizer: 日本学術会議（第58回日本学術会議材料工学連合講演会）
  • Place of Presentation: 京都テルサ
  • Year and Date: 2014-10-27 – 2014-10-28
• [Presentation] 原子モデルによるLPSO構造中のキンク界面の形成機構の検討 (2014)
  • Author(s): 松本龍介
  • Organizer: 第58回日本学術会議材料工学連合講演会
  • Place of Presentation: 京都テルサ
  • Year and Date: 2014-10-27 – 2014-10-28
  • Invited
• [Presentation] LPSO型マグネシウム合金の微視組織に生ずる変形に関する連続体力学解析 (2014)
  • Author(s): 大橋 鉄也，安田 洋平，眞山 剛
  • Organizer: 第58回日本学術会議材料工学連合講演会
  • Place of Presentation: 京都テルサ
  • Year and Date: 2014-10-27 – 2014-10-28
  • Invited
• [Presentation] Description of Disclination Density in Mg-based LPSO Phase Using a Crystal Plasticity Cosserat Model (2014)
  • Author(s): S. Tajiri, and K. Shizawa
  • Organizer: The 2nd International Symposium on Long-Period Stacking Ordered Structure and Its Related Materials (LPSO2014)
  • Place of Presentation: Hotel Nikko, Kumamoto, Japan
  • Year and Date: 2014-10-05 – 2014-10-08
• [Presentation] A Dislocation-based Crystal Plasticity FE Analysis for a Single Crystal and Polycrystal of a Mg-based LPSO Phase (2014)
  • Author(s): R. Ueta, and K. Shizawa
  • Organizer: The 2nd International Symposium on Long-Period Stacking Ordered Structure and Its Related Materials (LPSO2014)
  • Place of Presentation: Hotel Nikko, Kumamoto, Japan
  • Year and Date: 2014-10-05 – 2014-10-08
• [Presentation] Molecular Dynamics Study of Dislocation Activity during Kink Deformation of LPSO Structure (2014)
  • Author(s): R. Matsumoto, M. Uranagase
  • Organizer: International Symposium on Long-Period Stacking Ordered Structure and Its Related Materials 2014
  • Place of Presentation: Hotel Nikko Kumamoto, Kumamoto, Japan
  • Year and Date: 2014-10-05 – 2014-10-08
• [Presentation] Atomistic Simulation Study of the Dependence of Thermal Activation of Dislocation Nucleation in Mg on Temperature and Applied Stresses (2014)
  • Author(s): M. Uranagase, R. Matsumoto
  • Organizer: International Symposium on Long-Period Stacking Ordered Structure and Its Related Materials 2014
  • Place of Presentation: Hotel Nikko Kumamoto, Kumamoto, Japan
  • Year and Date: 2014-10-05 – 2014-10-08
• [Presentation] Kink Deformation Behavior in Long-period Stacking Ordered Structure during Uniaxial Loading with Stress-reversal (2014)
  • Author(s): Tsuyoshi Mayama, Tetsuya Ohashi, Michiaki Yamasaki and Yoshihito Kawamura
  • Organizer: The 2nd International Symposium on Long-Period Stacking Ordered Structure and Its Related Materials (LPSO2014)
  • Place of Presentation: Hotel Nikko, Kumamoto, Japan
  • Year and Date: 2014-10-05 – 2014-10-08
• [Presentation] Kink Deformation Expressed by Disclination Multipole and Dislocation Arrays (2014)
  • Author(s): Tetsuya Ohashi, Yohei Yasuda and Keita Oikawa
  • Organizer: The 2nd International Symposium on Long-Period Stacking Ordered Structure and Its Related Materials (LPSO2014)
  • Place of Presentation: Hotel Nikko, Kumamoto, Japan
  • Year and Date: 2014-10-05 – 2014-10-08
• [Presentation] 金属微視組織中に形成されるキンク変形の回位多重極子と連続分布転位モデルによる検討 (2014)
  • Author(s): 安田洋平、大橋鉄也、及川恵太
  • Organizer: 日本機械学会北海道支部 第53回講演会
  • Place of Presentation: 室蘭工業大学
  • Year and Date: 2014-09-27
• [Presentation] 回位密度を考慮した結晶塑性Cosseratモデルによるキンク帯形成に関するFEM解析 (2014)
  • Author(s): 志澤一之, 田尻聡太郎, 知場啓志
  • Organizer: 日本学術会議第63回理論応用力学講演会
  • Place of Presentation: 東工大
  • Year and Date: 2014-09-26 – 2014-09-28
• [Presentation] 回位多重極子と連続分布転位を用いたキンク変形の表現 (2014)
  • Author(s): 大橋鉄也、安田洋平
  • Organizer: 日本金属学会 2014年秋期講演大会
  • Place of Presentation: 名古屋大学東山キャンパス
  • Year and Date: 2014-09-24 – 2014-09-26
• [Presentation] 回位多重極子と連続分布転位を用いたキンク変形場の表現 (2014)
  • Author(s): 大橋鉄也
  • Organizer: 日本金属学会 2014年秋期講演大会
  • Place of Presentation: 名古屋大学東山キャンパス
  • Year and Date: 2014-09-24 – 2014-09-26
  • Invited
• [Presentation] Investigation on Intragranular Stress of Mg Including Several Twin-bands Using Dislocation-based Crystal Plasticity and Phase-field Models (2014)
  • Author(s): R. Kondo, Y. Tadano and K. Shizawa
  • Organizer: 12th Asia-Pacific Conference on Engineering Plasticity and Its Applications
  • Place of Presentation: National Sun Yat-sen University, Kaohsiung, Taiwan
  • Year and Date: 2014-09-01 – 2014-09-05
• [Presentation] A Dislocation-based Crystal Plasticity Simulation on Kink Band Formation and Evolution in Polycrystalline Mg Alloy with LPSO Phase (2014)
  • Author(s): R. Ueta and K. Shizawa
  • Organizer: 12th Asia-Pacific Conference on Engineering Plasticity and Its Applications
  • Place of Presentation: National Sun Yat-sen University, Kaohsiung, Taiwan
  • Year and Date: 2014-09-01 – 2014-09-05
• [Presentation] LPSO型Mg多結晶合金中のキンク形成・進展に関する転位-結晶塑性FEM解析 (2014)
  • Author(s): 上田亮, 志澤一之
  • Organizer: 日本機械学会M&M2014材料力学カンファレンス
  • Place of Presentation: 福島大学
  • Year and Date: 2014-07-18 – 2014-07-21
• [Presentation] 均質化Phase-field結晶塑性モデルを用いた多結晶Mg中の双晶組織発展挙動に関するFEM解析 (2014)
  • Author(s): 近藤瑠歩, 只野裕一, 志澤一之
  • Organizer: 日本機械学会M&M2014材料力学カンファレンス
  • Place of Presentation: 福島大学
  • Year and Date: 2014-07-18 – 2014-07-21
• [Presentation] 高強度マグネシウム合金中のLPSOおよびα-Mg相に生ずる変形の結晶塑性解析 (2014)
  • Author(s): 大橋鉄也、金澤裕一
  • Organizer: 日本機械学会 M&M2014カンファレンス
  • Place of Presentation: 福島大学金谷川キャンパス
  • Year and Date: 2014-07-18 – 2014-07-21
• [Presentation] 原子シミュレーションによる種々の応力環境下でのマグネシウム単結晶中の転位生成の定量的解析 (2014)
  • Author(s): 浦長瀬正幸、松本龍介
  • Organizer: 日本機械学会（M&M2014材料力学カンファレンス）
  • Place of Presentation: 福島大学 金谷川キャンパス
  • Year and Date: 2014-07-18 – 2014-07-21
• [Presentation] 回位密度を考慮したCosseratモデルの結晶塑性論的定式化 (2014)
  • Author(s): 田尻聡太郎, 志澤一之
  • Organizer: 日本材料学会第63期学術講演会
  • Place of Presentation: 福岡大学
  • Year and Date: 2014-05-16 – 2014-05-18
• [Presentation] 分子動力学法によるキンク界面の動的形成機構の検討 (2014)
  • Author(s): 松本龍介、浦長瀬正幸、阿部英司
  • Organizer: 日本材料学会（第19回分子動力学シンポジウム）
  • Place of Presentation: 福岡大学 文系センター棟15階 第5会議室
  • Year and Date: 2014-05-16
• [Presentation] 転位生成応力の角部角度依存性に関する原子モデル解析 (2014)
  • Author(s): 荒木康光、松本龍介、浦長瀬正幸、北村隆行
  • Organizer: 日本材料学会（第19回分子動力学シンポジウム）
  • Place of Presentation: 福岡大学 文系センター棟15階 第5会議室
  • Year and Date: 2014-05-16
• [Presentation] シンクロ型LPSO構造に対する圧縮変形の分子動力学シミュレーション (2014)
  • Author(s): 西岡祐一郎、佐山篤子、松本龍介、浦長瀬正幸
  • Organizer: 日本材料学会（第19回分子動力学シンポジウム）
  • Place of Presentation: 福岡大学 文系センター棟15階 第5会議室
  • Year and Date: 2014-05-16
• [Presentation] Mg 結晶中での転位生成の活性化自由エネルギーに対するエントロピーの影響 (2014)
  • Author(s): 浦長瀬正幸、松本龍介
  • Organizer: 日本材料学会（第19回分子動力学シンポジウム）
  • Place of Presentation: 福岡大学 文系センター棟15階 第5会議室
  • Year and Date: 2014-05-16
• [Presentation] モデルポテンシャルを用いた18R型LPSO 構造の変形解析 (2014)
  • Author(s): 西岡祐一郎，佐山篤子，松本龍介，浦長瀬正幸
  • Organizer: 日本機械学会関西支部（第89期定時総会講演会）
  • Place of Presentation: 大阪府立大学中百舌鳥キャンパス
• [Presentation] LPSO構造中のキンク界面の形成メカニズムに関する研究 (2014)
  • Author(s): 松本龍介，浦長瀬正幸
  • Organizer: 日本機械学会関西支部（第89期定時総会講演会）
  • Place of Presentation: 大阪府立大学中百舌鳥キャンパス
• [Presentation] 原子シミュレーションによるマグネシウム結晶中での転位生成の熱活性化解析 (2014)
  • Author(s): 浦長瀬正幸，松本龍介
  • Organizer: 日本機械学会関西支部（第89期定時総会講演会）
  • Place of Presentation: 大阪府立大学中百舌鳥キャンパス
• [Presentation] 転位射出によって生じる界面方位差の連続的増加メカニズム (2014)
  • Author(s): 松本龍介，浦長瀬正幸，阿部英司
  • Organizer: 日本金属学会（2014年度春期大会）
  • Place of Presentation: 東京工業大岡山キャンパス
• [Presentation] メタダイナミクス法を用いたマグネシウム結晶中の転位生成の熱活性化解析 (2014)
  • Author(s): 浦長瀬正幸，松本龍介
  • Organizer: 日本金属学会（2014年度春期大会）
  • Place of Presentation: 東京工業大岡山キャンパス
• [Presentation] 異方性結晶における特異な塑性座屈の微視的メカニズム (2014)
  • Author(s): 阿部英司，山口正剛，松本龍介
  • Organizer: 日本金属学会（2014年度春期大会）
  • Place of Presentation: 東京工業大岡山キャンパス
• [Presentation] キンク帯形成の結晶塑性解析 (2014)
  • Author(s): 大橋鉄也
  • Organizer: 日本金属学会2014年春期講演大会
  • Place of Presentation: 東京工業大学
  • Invited
• [Presentation] 動的再結晶によるLPSO型Mg合金の結晶粒微細化に関するPhase-field・転位-結晶塑性シミュレーション (2014)
  • Author(s): 古屋貴大, 近藤瑠歩, 志澤一之
  • Organizer: 日本機械学会関東支部第20期総会講演会
  • Place of Presentation: 東京農工大学
• [Presentation] Crystal Plasticity Analysis of Basal Slip Localization in Single Crystal Magnesium with LPSO Structure during Compressive Loading (2013)
  • Author(s): Tsuyoshi Mayama, Tetsuya Ohashi, Yuichi Tadano
  • Organizer: Materials Science Technology 2013 Conference Exhibition (MST'13)
  • Place of Presentation: Palais des congres de Montreal, Montreal, Quebec Canada
  • Year and Date: 2013-10-27
• [Presentation] Deformation Behavior of LPSO Phase and Zn Accompanied by Kink Band Froamation (2013)
  • Author(s): Koji Hagihara,Yoshihiro Fukusumi, Michiaki Yamasaki, Ryosuke Matsumoto, Masahito Honnami, Hitoshi Izuno, Takayoshi Nakano, Yoshihito Kawamura
  • Organizer: 8th Pacific Rim International Congress on Advanced Materials and Processing (PRICM-8)
  • Place of Presentation: Hilton Waikoloa Village, Waikoloa, Hawaii
  • Year and Date: 2013-08-04
• [Presentation] Crystal plasticity analysis of intergranular misorientation development in magnesium alloy with suppression of twinning (2013)
  • Author(s): T. Mayama and T. Ohashi
  • Organizer: 2013 International Plasticity Symposium, Plasticity 2013
  • Place of Presentation: Nassau, Bahama
  • Year and Date: 2013-01-03
  • Invited
• [Presentation] Crystal plasticity approach for mechanical response of two phase alloys with dispersion of fine paticles (2013)
  • Author(s): T. Ohashi, Y. Okuyama
  • Organizer: 2013 International Plasticity Symposium, Plasticity 2013
  • Place of Presentation: Nassau, Bahama
  • Year and Date: 2013-01-03
  • Invited
• [Presentation] Deformation behavior of LPSO phase and Zn accompanied by kink band formation (2013)
  • Author(s): ○K. Hagihara, Y. Fukusumi, M. Yamasaki, R. Matsumoto, M. Honnami, H. Izuno, T. Nakano, Y. Kawamura
  • Organizer: 8th Pacific Rim International Congress on Advanced Materials and Processing
  • Place of Presentation: Hilton Waikoloa Village, Waikoloa, Hawaii
  • Invited
• [Presentation] マグネシウム結晶中での転位生成の活性化自由エネルギー解析 (2013)
  • Author(s): 浦長瀬正幸，神垣沙奈，松本龍介，宮崎則幸
  • Organizer: 日本材料学会 第18回分子動力学シンポジウム
  • Place of Presentation: 東京工業大学大岡山キャンパス
• [Presentation] LPSO構造中に生じる転位運動の原子モデル解析 (2013)
  • Author(s): 松本龍介，浦長瀬正幸，宮崎則幸
  • Organizer: 日本材料学会（第18回分子動力学シンポジウム）
  • Place of Presentation: 東京工業大学大岡山キャンパス
• [Presentation] モデルポテンシャルを用いたシンクロ型LPSO構造の変形挙動解析 (2013)
  • Author(s): 西岡祐一郎，佐山篤子，松本龍介，浦長瀬正幸
  • Organizer: 日本機械学会（第26回計算力学講演会 ポスターセッション）
  • Place of Presentation: 佐賀大学本庄キャンパス
• [Presentation] 原子シミュレーションによるマグネシウム単結晶中での転位ループ生成の活性化自由エネルギー解析 (2013)
  • Author(s): 浦長瀬正幸，松本龍介
  • Organizer: 日本機械学会（第26回計算力学講演会）
  • Place of Presentation: 佐賀大学本庄キャンパス
• [Presentation] メタダイナミクス法によるマグネシウム単結晶中での転位ループ生成過程の解析 (2013)
  • Author(s): 浦長瀬正幸，松本龍介
  • Organizer: 日本機械学会（M&M2013材料力学カンファレンス）
  • Place of Presentation: 岐阜大学
• [Presentation] 原子モデル解析を用いたMg単元系LPSO構造の変形機構の解析 (2013)
  • Author(s): ○西岡祐一郎，佐山篤子，松本龍介，浦長瀬正幸
  • Organizer: 日本材料学会関西支部（第8回若手シンポジウム）
  • Place of Presentation: 東大阪市，石切温泉ホテルセイリュウ
• [Presentation] マグネシウム単結晶中における転位ループ生成の熱活性化過程 (2013)
  • Author(s): 浦長瀬正幸，松本龍介
  • Organizer: 第23回日本MRS年次大会
  • Place of Presentation: 横浜市，横浜情報文化センター
• [Presentation] Elasto-plastic Deformation in Pearlite Lamellar Structure -An Approach from Finite Element Analysis- (2013)
  • Author(s): T. Ohashi, L. Roslan, K. Takahashi
  • Organizer: 8th Pacific Rim Int. Conf. Advanced Materials and Processing
  • Place of Presentation: Hawaii, USA
• [Presentation] 底面すべり系の支配的な活動に伴う粒内方位差発展に関する結晶塑性解析 (2013)
  • Author(s): 眞山 剛、大橋鉄也、只野裕一、萩原幸司
  • Organizer: 日本金属学会2013年秋期(第153回)大会
  • Place of Presentation: 金沢大学
• [Presentation] 単軸圧縮負荷を受けるHCP単結晶におけるキンク帯形成過程の結晶塑性解析 (2013)
  • Author(s): 眞山 剛、大橋鉄也、只野裕一、萩原幸司
  • Organizer: 日本機械学会M&M2013材料力学カンファレンス
  • Place of Presentation: 岐阜大学
• [Presentation] LPSO型Mg多結晶合金のキンク変形に関する転位-結晶塑性FEM解析 (2013)
  • Author(s): 上田亮, 田尻聡太郎, 只野裕一, 志澤一之
  • Organizer: 日本機械学会M&M2013材料力学カンファレンス
  • Place of Presentation: 岐阜大学
• [Presentation] HCP結晶の双晶変形による局所ひずみを考慮したPhase-field－転位-結晶塑性FEM解析 (2013)
  • Author(s): 近藤瑠歩, 只野裕一, 志澤一之
  • Organizer: 日本機械学会M&M2013材料力学カンファレンス
  • Place of Presentation: 岐阜大学
• [Presentation] 単軸圧縮負荷を受けるLPSO単相多結晶材におけるキンク帯形成頻度の定量的評価 (2013)
  • Author(s): 田中宏明、眞山 剛、山崎倫昭、河村能人
  • Organizer: 日本機械学会M&M2013材料力学カンファレンス
  • Place of Presentation: 岐阜大学
• [Presentation] Crystal Plasticity Analysis of Basal Slip Localization in Single Crystal Magnesium with LPSO Structure during Compressive Loading (2013)
  • Author(s): Tsuyoshi Mayama, Tetsuya Ohashi, Y.Tadano
  • Organizer: MS&T2013
  • Place of Presentation: Montreal, Canada
• [Presentation] 単一すべり面の支配的な活動に伴う粒内方位差発展に関する結晶塑性解析 (2013)
  • Author(s): 眞山 剛、大橋鉄也、只野裕一、萩原幸司
  • Organizer: 日本機械学会第25回計算力学講演会
  • Place of Presentation: 佐賀大学
• [Presentation] フェライト/セメンタイト積層構造のサイズ効果に関する結晶塑性解析 (2013)
  • Author(s): 安田洋平，杉山琢郎，大橋鉄也，リディアナロスラン，高橋宏輔
  • Organizer: 日本機械学会第25回計算力学講演会
  • Place of Presentation: 佐賀大学
• [Presentation] パーライト相に生じる弾塑性変形の解析－積層数の増加と加工硬化による不安定変形の抑制－ (2013)
  • Author(s): 大橋鉄也，佐藤満弘，○高橋宏輔，L.Roslan，安田洋平，杉山琢郎
  • Organizer: 日本機械学会第25回計算力学講演会
  • Place of Presentation: 佐賀大学
• [Presentation] Mg基LPSO相における底面転位易動度がキンク形成に及ぼす影響に関する転位-結晶塑性FEM解析 (2013)
  • Author(s): 小紫知慧, 上田亮, 志澤一之
  • Organizer: 日本機械学会第25回計算力学講演会
  • Place of Presentation: 佐賀大学
• [Presentation] 分散強化型2 相合金中の粒子近傍に生じる不均一すべりの結晶塑性解析 (2013)
  • Author(s): 奥山彫夢，大橋鉄也，佐藤満弘
  • Organizer: 日本機械学会第25回計算力学講演会
  • Place of Presentation: 佐賀大学
• [Presentation] 環境温度変化を考慮したMulti-phase-field理論および転位-結晶塑性論に基づく動的再結晶シミュレーション (2013)
  • Author(s): 谷本遼, 御園生大介, 志澤一之
  • Organizer: 日本機械学会第25回計算力学講演会
  • Place of Presentation: 佐賀大学
• [Presentation] HCP結晶の双晶変形による局所ひずみを考慮したPhase-field－転位-結晶塑性FEM解析 (2013)
  • Author(s): 近藤瑠歩, 只野裕一, 志澤一之
  • Organizer: 日本材料学会第62期学術講演会
  • Place of Presentation: 東京工業大学
• [Presentation] Multi-phase-field理論および転位-結晶塑性論に基づく動的再結晶モデルの温度依存形への拡張 (2013)
  • Author(s): 御園生大介, 長津輝, 志澤一之
  • Organizer: 日本材料学会第62期学術講演会
  • Place of Presentation: 東京工業大学
• [Presentation] 繰返し負荷を受けるフェライト単相双結晶に対する転位‐結晶塑性シミュレーション (2013)
  • Author(s): 横山晃彦, 中山英介, 早川守, 斉藤岳行, 山本三幸, 岡村一男, 志澤一之
  • Organizer: 第57回日本学術会議材料工学連合講演会
  • Place of Presentation: 京都テルサ
• [Presentation] キンク変形を表現する回位密度を考慮したCosseratモデルの結晶塑性論的定式化 (2013)
  • Author(s): 田尻聡太郎, 志澤一之
  • Organizer: 第57回日本学術会議材料工学連合講演会
  • Place of Presentation: 京都テルサ
• [Presentation] Phase-field・転位-結晶塑性モデルを用いたLPSO型Mg合金のα-Mg相における結晶粒微細化シミュレーション (2013)
  • Author(s): 壁谷卓未, 近藤瑠歩, 志澤一之
  • Organizer: 第57回日本学術会議材料工学連合講演会
  • Place of Presentation: 京都テルサ
• [Presentation] Modeling and Simulation for Deformation Twinning in Intragranular Scale Based on Dislocation-Crystal Plasticity and Phase-field Theories (2013)
  • Author(s): R. Kondo, Y. Tadano, K. Shizawa
  • Organizer: 5th Asia Pacific Congress on Computational Mechanics (APCOM2013)
  • Place of Presentation: Singapore, Republic of Singapore
• [Presentation] A Dislocation-based Crystal Plasticity FE Analysis on Mechanisms of Kink Band Formation in Mg-based LPSO Phase (2013)
  • Author(s): R. Ueta, Y. Tadano, K. Shizawa
  • Organizer: 5th Asia Pacific Congress on Computational Mechanics (APCOM2013)
  • Place of Presentation: Singapore, Republic of Singapore
• [Presentation] 転位依存の結晶塑性モデル (2013)
  • Author(s): 大橋鉄也
  • Organizer: 第62 回理論応用力学講演会(NCTAM2013)
  • Place of Presentation: 東京工大
  • Invited
• [Presentation] 長周期積層構造相単結晶試料のキンク変形に関する力学解析 (2013)
  • Author(s): 大橋鉄也
  • Organizer: 日本金属学会分科会シンポジウム「シンクロ型LPSO構造の材料科学」
  • Place of Presentation: 東京
  • Invited
• [Presentation] LPSO構造中に生じる転位運動の原子モデル解析 (2013)
  • Author(s): 松本龍介，浦長瀬正幸，宮崎則幸
  • Organizer: 第１８回分子動力学シンポジウム
  • Place of Presentation: 東京工業大学 大岡山キャンパス
• [Presentation] マグネシウム結晶中での転位生成の活性化自由エネルギー解析 (2013)
  • Author(s): 浦長瀬正幸，神垣沙奈，松本龍介，宮崎則幸
  • Organizer: 第１８回分子動力学シンポジウム
  • Place of Presentation: 東京工業大学 大岡山キャンパス
• [Presentation] A Simulation for Deformation Twinning Based on Crystal Plasticity and Phase-field Models (2012)
  • Author(s): R. Kondo, Y. Tadano, K. Shizawa
  • Organizer: The 5th International Symposium on Designing, Processing and Properties of Advanced Engineering Materials (ISAEM-2012)
  • Place of Presentation: Loisir Hotel Toyohashi, Toyohashi, Japan
  • Year and Date: 2012-11-05
• [Presentation] Crystal Plasticity Finite Element Analysis of Intragranular Misorientation Development in LPSO Structure (2012)
  • Author(s): T. Mayama, T. Ohashi and Y. Tadano
  • Organizer: The 5th International Symposium on Designing, Processing and Properties of advanced Engineering Materials, ISAEM-2012
  • Place of Presentation: Toyohashi
  • Year and Date: 2012-11-05
• [Presentation] Crystal plasticity analysis for generation of dislocation patterns in a tricrystal model subjected to cyclic load (2012)
  • Author(s): T. Ohashi, R. Kondou
  • Organizer: The 5th International Symposium on Designing, Processing and Properties of advanced Engineering Materials, ISAEM-2012
  • Place of Presentation: Toyohashi, Japan
  • Year and Date: 2012-11-05
  • Invited
• [Presentation] Atomistic Study of Kinking Deformation and Dislocation Activities in Long-Period Stacking Ordered Phases (2012)
  • Author(s): R. Matsumoto, S. Kamigaki, M. Uranagase, N. Miyazaki
  • Organizer: ISAEM-2012
  • Place of Presentation: Loisir Hotel Toyohashi
  • Year and Date: 2012-11-03
  • Invited
• [Presentation] Development of Intragranular Misorientation in Magnesium with LPSO Structure During Compressive Loading (2012)
  • Author(s): Tsuyoshi Mayama, Tetsuya Ohashi and Yuichi Tadano
  • Organizer: The 7th Pan-Yellow Sea Rim (YSR7) International Symposium on Magnesium Alloys
  • Place of Presentation: Shenyang, China
  • Year and Date: 2012-10-14
• [Presentation] GN転位-結晶塑性FEM解析によるMg基LPSO相におけるキンクバンド形成機構の検討 (2012)
  • Author(s): 田尻聡太郎, 上田亮, 只野裕一, 志澤一之
  • Organizer: 日本機械学会第25回計算力学講演会
  • Place of Presentation: 神戸ポートアイランド計算科学センタービル，神戸
  • Year and Date: 2012-10-06
• [Presentation] 原子モデルを用いた有限温度におけるマグネシウム単結晶中の転位対生成解析 (2012)
  • Author(s): 神垣沙奈，松本龍介，浦長瀬正幸，宮崎則幸
  • Organizer: 日本機械学会(第25回計算力学講演会) ポスターセッション
  • Place of Presentation: 神戸ポートアイランド南地区
  • Year and Date: 2012-10-06
• [Presentation] hcp構造と長周期積層構造の変形挙動に関する原子モデル解析 (2012)
  • Author(s): 松本龍介，浦長瀬正幸，宮崎則幸
  • Organizer: 日本機械学会(第25回計算力学講演会)
  • Place of Presentation: 神戸ポートアイランド南地区
  • Year and Date: 2012-10-06
• [Presentation] U形ノッチの先端から放出される幾何学的に必要な転位の数値解析 (2012)
  • Author(s): 大橋鉄也，佐藤満弘，小林辰徳，斉藤知明，板尾聖也
  • Organizer: 日本機械学会第25回計算力学講演会
  • Place of Presentation: 甲南大学
  • Year and Date: 2012-10-06
• [Presentation] 微細積層構造に生じる弾塑性変形の有限要素解析 (2012)
  • Author(s): 高橋宏輔，大橋鉄也，リディアナ・ロスラン，佐藤満弘
  • Organizer: 日本機械学会第25回計算力学講演会
  • Place of Presentation: 甲南大学
  • Year and Date: 2012-10-06
• [Presentation] 第2相粒子を含む金属材料中の転位蓄積と加工硬化の結晶塑性解析 (2012)
  • Author(s): 大橋鉄也，奥山彫夢
  • Organizer: 日本機械学会第25回計算力学講演会
  • Place of Presentation: 甲南大学
  • Year and Date: 2012-10-06
• [Presentation] An Investigation on Mechanism of Kink-band Formation in Mg-based LPSO-phase by Dislocation-crystal Plasticity FE Analysis (2012)
  • Author(s): R. Ueta, Y. Tadano, K. Shizawa
  • Organizer: International Symposium on Long-Period Stacking Ordered Structure and Its Related Materials 2012 (LPSO2012)
  • Place of Presentation: Sapporo Convention Center, Sapporo, Japan
  • Year and Date: 2012-10-01
• [Presentation] Molecular Dynamics Study of Kinking Deformation of LPSO Phases (2012)
  • Author(s): R. Matsumoto, N. Miyazaki
  • Organizer: International Symposium on Long-Period Stacking Ordered Structure and Its Related Materials 2012, Poster session
  • Place of Presentation: Sapporo Convention Center
  • Year and Date: 2012-10-01
• [Presentation] Atomistic Study of Dislocation Nucleation in Magnesium Single Crystal at a Finite Temperature (2012)
  • Author(s): M. Uranagase, S. Kamigaki, R. Matsumoto, N. Miyazaki
  • Organizer: International Symposium on Long-Period Stacking Ordered Structure and Its Related Materials 2012, Poster session
  • Place of Presentation: Sapporo Convention Center
  • Year and Date: 2012-10-01
• [Presentation] Development of Variation of Crystal Orientation in Magnesium with LPSO Structure During Compressive Loading (2012)
  • Author(s): Tsuyoshi Mayama, Tetsuya Ohashi, Y.Tadano
  • Organizer: LPSO2012
  • Place of Presentation: 札幌コンベンションセンター
  • Year and Date: 2012-10-01
• [Presentation] Crystal plasticity analysis of slip deformation and kinking in LPSO phase (2012)
  • Author(s): Tetsuya Ohashi, Tsuyoshi Mayama, Kenji Matsumoto
  • Organizer: LPSO2012
  • Place of Presentation: 札幌コンベンションセンター
  • Year and Date: 2012-10-01
• [Presentation] マグネシウム合金の長周期積層構造相における底面すべり系変形の加工硬化特性とキンク形成 (2012)
  • Author(s): 大橋鉄也，松本賢治，眞山剛
  • Organizer: 日本機械学会材料力学部門2012年度講演会，MM2012
  • Place of Presentation: 愛媛大学，松山
  • Year and Date: 2012-09-22
• [Presentation] Phase-field理論による双晶の組織形成を連成させたMg単結晶の転位-結晶塑性FEM解析 (2012)
  • Author(s): 近藤瑠歩, 只野裕一, 志澤一之
  • Organizer: 日本機械学会MM2012材料力学カンファレンス
  • Place of Presentation: 愛媛大学，松山
  • Year and Date: 2012-09-21
• [Presentation] LPSO構造におけるキンク形成と回位密度に関する転位-結晶塑性解析 (2012)
  • Author(s): 志澤一之, 只野裕一
  • Organizer: 日本機械学会2012年度年次大会
  • Place of Presentation: 金沢大学角間キャンパス，金沢
  • Year and Date: 2012-09-09
• [Presentation] A continuum mechanics approach to slip deformation and dislocation accumulation in metal microstructures (2012)
  • Author(s): Tetsuya Ohashi
  • Organizer: KSME-JSME Joint Symposium on CM CAE 2012
  • Place of Presentation: 金沢
  • Year and Date: 2012-09-09
  • Invited
• [Presentation] 高強度マグネシウム合金のLPSO相における変形特性の結晶塑性解析 (2012)
  • Author(s): 大橋鉄也
  • Organizer: 日本機械学会2012年度年次大会
  • Place of Presentation: 金沢大学
  • Year and Date: 2012-09-09
  • Invited
• [Presentation] 長周期積層型マグネシウム合金の塑性変形に伴う結晶方位変動 (2012)
  • Author(s): 眞山 剛、山崎倫昭、田代哲也、河村能人
  • Organizer: 日本機械学会MM若手シンポジウム2012
  • Place of Presentation: 函館KKR
  • Year and Date: 2012-08-11
• [Presentation] Molecular dynamics analyses of deformation behavior of long-period stacking order phases (2012)
  • Author(s): R. Matsumoto, N. Miyazaki
  • Organizer: 10th World Congress on Computational Mechanics (WCCM2012)
  • Place of Presentation: Sao Paulo, Brazil
  • Year and Date: 2012-07-08
• [Presentation] Lattice rotation in magnesium with LPSO structure subjected to compressive loading (2012)
  • Author(s): Tsuyoshi Mayama, Tetsuya Ohashi, Y.Tadano
  • Organizer: Mg2012: 9th International Conference on Magnesium Alloys and their Applications
  • Place of Presentation: Vancouver, Canada
  • Year and Date: 2012-07-08
• [Presentation] Comparison of experimental and numerical results of stress-strain curves of two-phase alloys with dispersion of nano-meter sized particles (2012)
  • Author(s): T. Ohashi and Y. Okuyama
  • Organizer: CMCn 2012
  • Place of Presentation: Bad Honnef, Germany
  • Year and Date: 2012-06-27
  • Invited
• [Presentation] A Numerical Reproduction of Stress-strain Curves of Two-phase Alloys With Dispersion of Nano-meter Sized Particles (2012)
  • Author(s): T. Ohashi
  • Organizer: Micromechanics of Advanced Structural Materials - Professor Toshio Mura Memorial Symposium -
  • Place of Presentation: Tsukuba, Japan
  • Year and Date: 2012-06-07
  • Invited
• [Presentation] 転位蓄積による核生成を考慮したMulti-phase-field理論および転位-結晶塑性論に基づく動的再結晶シミュレーション (2012)
  • Author(s): 村松眞由, 佐藤愼一, 志澤一之
  • Organizer: 日本材料学会第61期学術講演会
  • Place of Presentation: 岡山大学，岡山
  • Year and Date: 2012-05-25
• [Presentation] A Study on Simulation Model of Dynamic Recrystallization Using Multi-phase-field and Dislocation-crystal Plasticity Models (2012)
  • Author(s): M. Muramatsu, K. Shizawa
  • Organizer: Young Investigators Conferences 2012(YIC2012)
  • Place of Presentation: Aveiro, Portugal
  • Year and Date: 2012-04-24
• [Presentation] 分子動力学法を用いたhcp構造と長周期積層構造の変形挙動解析 (2012)
  • Author(s): 松本龍介・丸山 俊・宮崎則幸
  • Organizer: 日本材料学会（第17回分子動力学シンポジウム） ポスターセッション
  • Place of Presentation: 東京大学生産技術研究所
• [Presentation] Multiphysics modeling of deformation twinning in HCP metals based on phase-field approach (2012)
  • Author(s): Y. Tadano, R. Kondo, K. Shizawa
  • Organizer: KSME-JSME Joint Symposium on CM CAE 2012
  • Place of Presentation: Kanazawa University, Kanazawa, Japan
  • Invited
• [Presentation] Comparison of experimental and numerical results of stress-strain curves of two-phase alloys with dispersion of nano-meter sized particles (2012)
  • Author(s): T. Ohashi and Y. Okuyama
  • Organizer: Colloquium on Materials Modelling, IMWF
  • Place of Presentation: Stuttgart, Germany
  • Invited
• [Presentation] 単軸圧縮負荷を受ける長周期積層型マグネシウム合金における結晶粒内方位変動解析 (2012)
  • Author(s): 眞山剛, 大橋鉄也, 只野裕一
  • Organizer: 日本金属学会2012年春期(第151回)大会
  • Place of Presentation: 横浜国立大学
• [Presentation] 圧痕試験によるMg-Zn-Y系長周期積層構造相のキンク変形挙動調査 (2012)
  • Author(s): 田代哲也, 山崎倫昭, 河村能人, 眞山剛
  • Organizer: 日本金属学会2012年春期(第151回)大会
  • Place of Presentation: 横浜国立大学
• [Presentation] LPSO相体積分率と押出比がMg-Zn-Y系合金の高温引張特性に及ぼす影響 (2011)
  • Author(s): 福永康文, 眞山剛, 山崎倫昭, 河村能人
  • Organizer: 2011年度日本金属学会九州支部大会
  • Place of Presentation: 九州大学
  • Year and Date: 2011-06-11
• [Presentation] 純マグネシウム単結晶における加工硬化挙動の結晶塑性解析 (2011)
  • Author(s): 眞山剛, 大橋鉄也, 安藤新二, 東田賢二
  • Organizer: 日本材料学会第60期学術講演会
  • Place of Presentation: 大阪大学
• [Presentation] 変形双晶による格子回転を考慮したマグネシウム合金の多結晶挙動解析 (2011)
  • Author(s): 只野裕一, 眞山剛
  • Organizer: 日本材料学会第60期学術講演会
  • Place of Presentation: 大阪大学
• [Presentation] マグネシウムにおける変形双晶発展のEBSD観察 (2011)
  • Author(s): 眞山剛
  • Organizer: 日本機械学会M&M2011材料力学カンファレンス
  • Place of Presentation: 九州工業大学
• [Presentation] マグネシウム合金長周期積層構造におけるキンク形成の結晶塑性解析 (2011)
  • Author(s): 大橋鉄也, 伊藤陽介, 眞山剛
  • Organizer: 日本機械学会M&M2011材料力学カンファレンス
  • Place of Presentation: 九州工業大学
• [Presentation] マグネシウム合金の多結晶塑性解析における変形双晶発展に関する検討 (2011)
  • Author(s): 只野裕一, 眞山剛
  • Organizer: 日本機械学会M&M2011材料力学カンファレンス
  • Place of Presentation: 九州工業大学
• [Presentation] Texture development mechanism of magnesium alloy during extrusion (2011)
  • Author(s): T.Mayama, M.Kuroda
  • Organizer: Thermec 2011
  • Place of Presentation: Quebec Convention Center, Quebec, Canada
• [Presentation] Crystal plasticity approach for the kink deformation of LPSO phase in magnesium alloys (2011)
  • Author(s): T.Ohashi, T.Mayama, Y.Ito
  • Organizer: Thermec 2011
  • Place of Presentation: Quebec Convention Center, Quebec, Canada
• [Presentation] Crystal plasticity analysis of strain hardening in magnesium single crystal (2011)
  • Author(s): T.Mayama, T.Ohashi, S.Ando, K.Higashida
  • Organizer: ICMM 2
  • Place of Presentation: Ecole de Mines Paris Tech, Paris, France
• [Presentation] Polycrystalline behavior of magnesium alloy considering lattice rotation due to deformation twinning (2011)
  • Author(s): Y.Tadano, T.Mayama
  • Organizer: ICMM 2
  • Place of Presentation: Ecole de Mines Paris Tech, Paris, France
• [Presentation] Tension-compression asymmetry in extraded Mg-Zn-Y alloy (2011)
  • Author(s): T.Mayama, Y.Ryu, H.Tanabe, Y.Kawamura
  • Organizer: ASMA4, Poster Session
  • Place of Presentation: Paradise Hotel, Busan, Korea
• [Presentation] Effect of LPSO phase volume fraction and extrusion ram speed on mechanical properties of Mg-Zn-Y alloys (2011)
  • Author(s): Y.Fukunaga, T.Mayama, M.Yamasaki, Y.Kawamura
  • Organizer: ASMA4, Poster Session
  • Place of Presentation: Paradise Hotel, Busan, Korea
• [Presentation] The accumulation of the geometrically necessary dislocations in bicrystals of magnesium alloys with LPSO structure (2011)
  • Author(s): T.Mayama, T.Ohashi
  • Organizer: MS&T'11
  • Place of Presentation: Columbus Convention Center, Columbus, USA
• [Presentation] マグネシウム合金の押出集合組織形成に及ぼす活動変形機構の影響 (2011)
  • Author(s): 眞山剛, 黒田充紀
  • Organizer: 第62回塑性加工連合講演会
  • Place of Presentation: ホテル日航豊橋
• [Presentation] 変形双晶を考慮したマグネシウム合金のマルチスケールシミュレーション (2011)
  • Author(s): 只野裕一, 眞山剛
  • Organizer: 第62回塑性加工連合講演会
  • Place of Presentation: ホテル日航豊橋
• [Presentation] Mg-Zn-Y二相合金の変形抵抗と各相の特性を考慮した鍛造加工の有限要素シミュレーション (2011)
  • Author(s): 松本良, 大津雅亮, 山崎倫昭, 眞山剛, 宇都宮裕, 河村能人
  • Organizer: 第62回塑性加工連合講演会
  • Place of Presentation: ホテル日航豊橋
• [Presentation] 転位密度依存型硬化則によるマグネシウム単結晶の単軸負荷解析 (2011)
  • Author(s): 眞山剛, 大橋鉄也, 安藤新二, 東田賢二
  • Organizer: 日本金属学会2011年秋期(第149回)大会
  • Place of Presentation: 沖縄コンベンションセンター
• [Presentation] LPSO型Mg-Zn-Y合金押出材の引張特性に及ぼすLPSO相体積分率と押出速度の影響 (2011)
  • Author(s): 福永康文, 眞山剛, 山崎倫昭, 河村能人
  • Organizer: 軽金属学会第121回秋期大会
  • Place of Presentation: 早稲田大学
• [Presentation] Formation of high density bands of geometrically necessary dislocations in magnesium with suppression of twinning (2011)
  • Author(s): T.Mayama, T.Ohashi
  • Organizer: YSR-6
  • Place of Presentation: Sejong Hotel, Seoul, Koreav
• [Presentation] Effect of extrusion ram speed and LPSO phase volume fraction on mechanical properties of Mg-Zn-Y alloys at elevated temperatures (2011)
  • Author(s): Y.Fukunaga, T.Mayama, M.Yamasaki, Y.Kawamura
  • Organizer: YSR-6
  • Place of Presentation: Sejong Hotel, Seoul, Koreav
• [Presentation] Mgの双晶帯進展に関するGN転位-結晶塑性シミュレーション (2011)
  • Author(s): 近藤瑠歩, 上田亮, 只野裕一, 志澤一之
  • Organizer: 日本材料学会第60期学術講演会
  • Place of Presentation: 大阪大学
• [Presentation] 界面エネルギーの異方性を考慮した純Mgの双晶進展に関する3次元FEM解析 (2011)
  • Author(s): 近藤瑠歩, 上田亮, 只野裕一, 志澤一之
  • Organizer: 日本機械学会M&M2011材料力学カンファレンス
  • Place of Presentation: 九州工業大学
• [Presentation] HCP結晶における双晶進展の3次元GN転位-結晶塑性解析 (2011)
  • Author(s): 近藤瑠歩, 上田亮, 只野裕一, 志澤一之
  • Organizer: 日本機械学会第24回計算力学講演会
  • Place of Presentation: 岡山大学
• [Presentation] LPSO型Mg単相におけるキンクバンド形成のGN転位-結晶塑性シミュレーション (2011)
  • Author(s): 上田亮, 近藤瑠歩, 只野裕一, 志澤一之
  • Organizer: 第55回日本学術会議材料工学連合講演会
  • Place of Presentation: 京都教育文化センター
• [Funded Workshop] Russian-Japanese Workshop on the structure and mechanisms of plasticity of advanced magnesium alloys and related materials (2015)
  • Place of Presentation: Togliatti-St.Petersburg, Russia
  • Year and Date: 2015-06-17