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Devrlopment of high durable Tungsten materials to realize divertor of a fusion reactor.

Research Project

Project/Area Number 17H01364
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Nuclear fusion studies
Research InstitutionTohoku University

Principal Investigator

Hasegawa Akira  東北大学, 金属材料研究所, 学術研究員 (80241545)

Co-Investigator(Kenkyū-buntansha) 野上 修平  東北大学, 工学研究科, 准教授 (00431528)
宮澤 健  東北大学, 工学研究科, 助教 (00733726)
安堂 正己  国立研究開発法人量子科学技術研究開発機構, 六ヶ所研究所 核融合炉材料研究開発部, 主幹研究員 (30370349)
長坂 琢也  核融合科学研究所, ヘリカル研究部, 教授 (40311203)
外山 健  東北大学, 金属材料研究所, 准教授 (50510129)
谷川 博康  国立研究開発法人量子科学技術研究開発機構, 六ヶ所核融合研究所 核融合炉材料研究開発部, グループリーダー(定常) (50354668)
Project Period (FY) 2017-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥44,590,000 (Direct Cost: ¥34,300,000、Indirect Cost: ¥10,290,000)
Fiscal Year 2021: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2018: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
Fiscal Year 2017: ¥20,800,000 (Direct Cost: ¥16,000,000、Indirect Cost: ¥4,800,000)
Keywords核融合炉 / 高熱流束機器 / ダイバータ材料 / タングステン材料 / 中性子照射影響 / 機械特性 / 微細組織安定性 / 核変換元素効果 / 核融合炉ダイバータ / タングステン / 微細組織発達 / 照射後機械特性 / 高熱流束材料 / 中性子照射 / 照射効果 / プラズマ対向機器用材料 / タングステン合金 / 中性子照射効果 / 核変換ヘリウム / 高熱流束機器用材料 / 核変換He効果 / 照射脆化抑制 / 材料組織安定性 / 高熱流束機器材料 / 高融点金属材料 / プラズマ対向機器 / 原子炉照射材 / 照射後試験 / 微細組織変化 / 照射抵抗性 / 機械的特性
Outline of Final Research Achievements

In order to collect data on the effects of neutron irradiation on tungsten (W), data on the microstructural evolution of pure W materials and their alloys irradiated with neutrons using the HFIR reactor at ORNL in the United States under the Japan-U.S. collaboration project PHENIX were obtained. As examined samples, stress relieved pure W and recrystallized pure W prepared by powder sintering were used, and K-doped fine grain material and/or 3%Re W alloys that can improve brittleness near room temperature were also developed and used. We evaluated the irradiation characteristics of the W and W-Re alloys before and after the reactor irradiation using various methods. We made it possible to use them under ITER level irradiation conditions (1 dpa or less) and the prospects for the development of new tungsten materials could be conducted.

Academic Significance and Societal Importance of the Research Achievements

タングステンは3400℃という非常に高い融点をもつものの、室温近傍での脆性や材質改善のために導入した組織が高温領域で消滅してしまい、かつ低温での脆化が極端になる再結晶脆化が起こる条件を明確にすることが核融合炉のダイバータ機器用材料として使うための重要な要件であった。また中性子照射によってこれらの特性がどう変わってしまうかということが不明であった。本研究では核融合炉環境下での基本的な材料特性の解明とともに、粒径や組成などによる組織制御で特性を改善した材料が高温の照射環境下でどのような挙動をするかを系統的な材料開発と実験により明らかにした。これによりダイバータ用材料開発の目途が明らかになった。

Report

(6 results)
  • 2022 Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (75 results)

All 2023 2022 2021 2020 2019 2018 2017 Other

All Int'l Joint Research (8 results) Journal Article (18 results) (of which Int'l Joint Research: 10 results,  Peer Reviewed: 18 results,  Open Access: 9 results) Presentation (49 results) (of which Int'l Joint Research: 16 results,  Invited: 9 results)

  • [Int'l Joint Research] Oak Ridge National Laboratory(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Karlsruhe Institute of Technology/Forschungszentrum Julich GmbH(ドイツ)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Oak Ridge National Laboratory(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] オークリッジ国立研究所(米国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] カールスルーエ工科大学(ドイツ)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] オークリッジ国立研究所(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] オークリッジ国立研究所(米国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] カールスルーエ工科大学(ドイツ)

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Microstructural evolution in tungsten binary alloys under proton and self-ion irradiations at 800 °C2023

    • Author(s)
      Miyazawa Takeshi、Kikuchi Yuta、Ando Masami、Yu Ju-Hyeon、Yabuuchi Kiyohiro、Nozawa Takashi、Tanigawa Hiroyasu、Nogami Shuhei、Hasegawa Akira
    • Journal Title

      Journal of Nuclear Materials

      Volume: 575 Pages: 154239-154239

    • DOI

      10.1016/j.jnucmat.2023.154239

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tungsten-Tantalum Alloys for Fusion Reactor Applications2022

    • Author(s)
      Shuhei Nogami, Itsuki Ozawa, Daisuke Asami, Naoya Matsuta, Seiji Nakabayashi, Siegfried Baumgartner, Philipp Lied, Kiyohiro Yabuuchi, Takeshi Miyazawa, Yuta Kikuchi, Marius Wirtz, Michael Rieth, Akira Hasegawa
    • Journal Title

      Journal of Nuclear Materials

      Volume: 566 Pages: 153740-153740

    • DOI

      10.1016/j.jnucmat.2022.153740

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Neutron irradiation-enhanced grain growth in tungsten and tungsten alloys2022

    • Author(s)
      Hanns Gietl, Takaaki Koyanagi, Xunxiang Hu, Makoto Fukuda, Akira Hasegawa, Yutai Katoh
    • Journal Title

      Journal of Alloys and Compounds

      Volume: 901 Pages: 163419-163419

    • DOI

      10.1016/j.jallcom.2021.163419

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effects of microstructural anisotropy and helium implantation on tensile properties of powder-metallurgy processed tungsten plates2022

    • Author(s)
      Miyazawa Takeshi、Matsui Kento、Hasegawa Akira
    • Journal Title

      Nuclear Materials and Energy

      Volume: 30 Pages: 101122-101122

    • DOI

      10.1016/j.nme.2022.101122

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Neutron irradiation tolerance of potassium-doped and rhenium-alloyed tungsten2021

    • Author(s)
      Shuhei Nogami, Dmitry Terentyev, Aleksandr Zinovev, Chao Yin, Michael Rieth, Gerald Pintsuk, Akira Hasegawa
    • Journal Title

      Journal of Nuclear Materials

      Volume: 553 Pages: 153009-153009

    • DOI

      10.1016/j.jnucmat.2021.153009

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Thermal diffusivity of irradiated tungsten and tungsten-rhenium alloys2021

    • Author(s)
      Masafumi Akiyoshi, Lauren M. Garrison, Josina W. Geringer, Hsin Wang, Akira Hasegawa, Shuhei Nogami, Yutai Katoh
    • Journal Title

      Journal of Nuclear Materials

      Volume: 543 Pages: 152594-152594

    • DOI

      10.1016/j.jnucmat.2020.152594

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Mechanical properties of tungsten: Recent research on modified tungsten materials in Japan2021

    • Author(s)
      Shuhei Nogami, Akira Hasegawa, Makoto Fukuda, Michael Rieth, Jens Reiser, Gerald Pintsuk
    • Journal Title

      Journal of Nuclear Materials

      Volume: 543 Pages: 152506-152506

    • DOI

      10.1016/j.jnucmat.2020.152506

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Helium effects on tensile properties of powder metallurgical-processed tungsten for fusion reactor applications2021

    • Author(s)
      Hasegawa Akira、Sato Yusuke、Hattori Takaya、Kanamaru Ryota、Du Luo、Miyazawa Takeshi、Nogami Shuhei
    • Journal Title

      Nuclear Materials and Energy

      Volume: 29 Pages: 101076-101076

    • DOI

      10.1016/j.nme.2021.101076

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tensile properties of powder-metallurgical-processed tungsten alloys after neutron irradiation near recrystallization temperatures2020

    • Author(s)
      Miyazawa Takeshi、Garrison Lauren M.、Geringer Josina W.、Echols John R.、Fukuda Makoto、Katoh Yutai、Hinoki Tatsuya、Hasegawa Akira
    • Journal Title

      Journal of Nuclear Materials

      Volume: 542 Pages: 152505-152505

    • DOI

      10.1016/j.jnucmat.2020.152505

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Neutron irradiation effects on the mechanical properties of powder metallurgical processed tungsten alloys2020

    • Author(s)
      Miyazawa Takeshi、Garrison Lauren M.、Geringer Josina W.、Fukuda Makoto、Katoh Yutai、Hinoki Tatsuya、Hasegawa Akira
    • Journal Title

      Journal of Nuclear Materials

      Volume: 529 Pages: 151910-151910

    • DOI

      10.1016/j.jnucmat.2019.151910

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Helium effects on recovery and recrystallization of powder metallurgically processed tungsten2020

    • Author(s)
      Hasegawa Akira、Miyazawa Takeshi、Itou Daichi、Hattori Takaya、Yohida Kenta、Nogami Shuhei
    • Journal Title

      Physica Scripta

      Volume: T171 Pages: 014016-014016

    • DOI

      10.1088/1402-4896/ab408d

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Response of unalloyed tungsten to mixed spectrum neutrons2019

    • Author(s)
      Y. Katoh, L.L. Snead, L.M. Garrison, X. Hu, T. Koyanagi, C.M. Parish, P.D.Edmondson, M. Fukuda, T. Hwang, T.Tanaka, A. Hasegawa
    • Journal Title

      Journal of Nuclear Materials

      Volume: 520 Pages: 193-207

    • DOI

      10.1016/j.jnucmat.2019.03.045

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Phenix U.S.-Japan Collaboration Investigation of Thermal and Mechanical Properties of Thermal Neutron-Shielded Irradiated Tungsten2019

    • Author(s)
      Lauren M. Garrison, Yutai Katoh, Josina W. Geringer, Masafumi Akiyoshi, Xiang Chen, Makoto Fukuda, Akira Hasegawa, Tatsuya Hinoki, Xunxiang Hu, Takaaki Koyanagi, Eric Lang, Michel McAlister, Joel McDuffee, Takeshi Miyazawa, Chad Parish, Emily Proehl, Nathan Reid, Janet Robertson and Hshin Wang
    • Journal Title

      Fusion Science and Technology

      Volume: 75 Issue: 6 Pages: 499-509

    • DOI

      10.1080/15361055.2019.1602390

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Behavior of tungsten under irradiation and plasma interaction2019

    • Author(s)
      Michael Rieth, Russell Doerner, Akira Hasegawa, Yoshio Ueda, Marius Wirtz
    • Journal Title

      Journal of Nuclear Materials

      Volume: 519 Pages: 334-368

    • DOI

      10.1016/j.jnucmat.2019.03.035

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effects of helium on mechanical properties of tungsten for fusion applocations2018

    • Author(s)
      Takeshi Miyazawa, Taehyun Hwang, Kohei Tsuchida, Takaya Hattori, Makoto Fukuda, Shuhei Nogami, Akira Hasegawa
    • Journal Title

      Nuclear Materials and Energy

      Volume: 15 Pages: 154-157

    • DOI

      10.1016/j.nme.2018.04.003

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Recrystallization behavior of hot-rolled pure tungsten and its alloys plates during high-temperature annealing2018

    • Author(s)
      Kohei Tshuchida, Takeshi Miyazawa, Akira Hasegawa, Shuhei Nogami, Makoto Fukuda
    • Journal Title

      Nuclear Materials and Energy

      Volume: 15 Pages: 158-163

    • DOI

      10.1016/j.nme.2018.04.004

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of neutron irradiation on rhenium cluster formation in tungsten and tungsten-rhenium alloys2018

    • Author(s)
      Taehyun Hwang, Akira Hasegawa, Keiko Tomura, Naoaki Ebisawa, Takeshi Toyama, Yasuyoshi Nagai, Makoto
    • Journal Title

      Journal of Nuclear Materials

      Volume: 507 Pages: 78-86

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Thermal properties of pure tungsten and ites alloys for fusion applications2018

    • Author(s)
      Makoto Fukuda, Akira Hasegawa, Shuhei Nogami
    • Journal Title

      Fusion Engineering and Design

      Volume: 132 Pages: 1-6

    • DOI

      10.1016/j.fusengdes.2018.04.117

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 熱中性子遮へいを施して中性子照射した純WおよびW合金の 損傷の微細組織解析2023

    • Author(s)
      長谷川晃、吉田健太
    • Organizer
      金属学会 2023年春の大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ダイバータへの適用をめざすタングステン材料の照射データベースの構築2022

    • Author(s)
      長谷川晃、宮澤健、野澤貴史、安堂正己、兪周炫、黒滝宏紀
    • Organizer
      プラズマ核融合学会 2022年
    • Related Report
      2021 Annual Research Report
  • [Presentation] HFIRにて熱中性子遮へいを施して中性子照射したWの損傷の微細組織解析2022

    • Author(s)
      長谷川晃、吉田健太
    • Organizer
      金属学会 2022年 秋の大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] HFIRで照射したタングステンの中性子照射特性と微細組織発達2022

    • Author(s)
      長谷川晃、吉田健太、宮澤健
    • Organizer
      原子力学会 2022年秋の大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 核融合炉用材料という新しい分野でのタングステン材料の適用を通した材料科学の進展の状況 核融合炉用タングステン合金の開発2022

    • Author(s)
      長谷川晃
    • Organizer
      金属学会シンポジウム タングステン材料科学シンポジウム
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] HFIRで中性子照射したWおよびW合金の 照射後特性評価2022

    • Author(s)
      長谷川晃
    • Organizer
      金属学会 材料照射研究会2022
    • Related Report
      2021 Annual Research Report
  • [Presentation] タングステン材料の組織安定性と引張特性に及ぼすヘリウム注入濃度の影響2020

    • Author(s)
      宮澤健、佐藤祐輔、羅杜、野上修平、長谷川晃
    • Organizer
      日本金属学会第166回講演大会 2020年
    • Related Report
      2019 Annual Research Report
  • [Presentation] Helium Effects on Recovery and Recrystallization of Powder-Metallurgical Processed Tungsten2019

    • Author(s)
      A. Hasegawa, T. Miyazawa, T. Hattori, D. Itou, S. Nogami, K. Yoshida
    • Organizer
      17th Plasma Facing Materials and Components
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Study of effects of low concentration Helium on tensile properties of Tungsten by Helium implantation using a cyclotron2019

    • Author(s)
      Akira Hasegawa, Takaya Hattoria, Takeshi Miyazawaa and Shuhei Nogami
    • Organizer
      Fifth International Workshop on Structural Material for Innovative Nuclear Systems (SMINS-5)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Proton irradiation effects on the microstructural development of tungsten2019

    • Author(s)
      Seiya Nishimura, Shuhei Oizumi, Takeshi Miyazawa, Suhei Nogami and Akira Hasegawa
    • Organizer
      Fifth International Workshop on Structural Material for Innovative Nuclear Systems (SMINS-5)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Microstructure development of tungsten exposed to helium implantation2019

    • Author(s)
      Yusuke Sato, Daichi Ito , Takaya Hattori , Takeshi Miyazawa Shuhei Nogami , Akira Hasegawa , Kenta Yoshida
    • Organizer
      Fifth International Workshop on Structural Material for Innovative Nuclear Systems (SMINS-5)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Tensile behavior of tungsten materials irradiated with a thermal neutron shield2019

    • Author(s)
      Takeshi Miyazawa, Lauren M. Garrison, Josina W. Geringer, Yutai Katoh, Tatsuya Hinoki and Akira Hasegawa
    • Organizer
      Fifth International Workshop on Structural Material for Innovative Nuclear Systems (SMINS-5)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Helium Effects on Recovery and Recrystallization behavior and tensile properties of Powder-Metallurgical Processed Tungsten2019

    • Author(s)
      Akira. Hasegawa, Takeshi. Miyazawa, Takaya. Hattori, Daichi. Itou, and Shuhei. Nogami
    • Organizer
      19th International Conference of Fusion Rector Materials (ICFRM-19)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] NEUTRON IRRADIATION EFFECTS ON MECHANICAL PROPERTIES OF TUNGSTEN ALLOYS2019

    • Author(s)
      Takeshi Miyazawa, Lauren M. Garrison, Josina W. Geringer, Yutai Katoh, Tatsuya Hinoki and Akira Hasegawa
    • Organizer
      19th International Conference of Fusion Rector Materials (ICFRM-19)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 粉末焼結タングステンの高温における組織安定性と機械特性に及ぼす 注入ヘリウムの影響2019

    • Author(s)
      長谷川晃、服部剛弥、井藤大智、宮澤健、野上修平
    • Organizer
      日本原子力学会 2019年 秋の大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 再結晶温度域にて中性子照射したタングステン材料の機械特性2019

    • Author(s)
      宮澤健、L. M. Garrison、J.W. Geringer、福田誠、加藤雄大、檜木達也、長谷川晃
    • Organizer
      日本金属学会第165回講演大会 2019年
    • Related Report
      2019 Annual Research Report
  • [Presentation] タングステン材料の再結晶温度域における中性子照射後機械特性2019

    • Author(s)
      宮澤健、L. M. Garrison、J.W. Geringer、福田誠、加藤雄大、檜木達也、長谷川晃
    • Organizer
      第36回プラズマ・核融合学会年会 2019年
    • Related Report
      2019 Annual Research Report
  • [Presentation] タングステン-レニウム合金の微細組織発達に及ぼすイオン照射による影響2019

    • Author(s)
      西村星耶、宮澤健、三輪 美沙子、兪周炫、安堂正己、谷川博康、野上修平、長谷川晃
    • Organizer
      第36回プラズマ・核融合学会年会 2019年
    • Related Report
      2019 Annual Research Report
  • [Presentation] タングステン材料の引張特性に及ぼすヘリウム注入濃度の影響2019

    • Author(s)
      佐藤 祐輔、羅 杜、宮澤 健、野上 修平、長谷川 晃
    • Organizer
      第36回プラズマ・核融合学会年会 2019年
    • Related Report
      2019 Annual Research Report
  • [Presentation] タングステン材料の高温組織安定性に及ぼすヘリウム注入濃度の影響2019

    • Author(s)
      羅杜、佐藤祐輔、宮澤健、野上修平、長谷川晃
    • Organizer
      第36回プラズマ・核融合学会年会 2019年
    • Related Report
      2019 Annual Research Report
  • [Presentation] 核融合炉用タングステン材料の照射効果   (1) 中性子照射したタングステン材料の高温引張り特性2019

    • Author(s)
      宮澤健、ローレン ギャリソン、加藤雄大、檜木達也、長谷川晃
    • Organizer
      日本原子力学会 2019年春の大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 核融合炉用タングステン材料の照射効果    (2)軽イオン照射した段グステン材料の照射効果2019

    • Author(s)
      西村星耶、大泉周平、宮澤健、野上修平、長谷川晃
    • Organizer
      日本原子力学会 2019年春の大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 核融合炉用タングステン材料の照射効果    (3)ヘリウム注入したタングステンの微細組織および高温引張り特性2019

    • Author(s)
      佐藤祐輔、井藤大智、服部剛弥、宮澤健、野上修平、長谷川晃
    • Organizer
      日本原子力学会 2019年春の大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] タングステンの再結晶挙動に及ぼす高エネルギーHeイオン注入の影響2019

    • Author(s)
      長谷川晃、服部剛弥、井藤大智、宮澤健、野上修平
    • Organizer
      日本金属学会 2019年春期(第164回)講演退会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Current Status of Irradiation Research of Tungsten Materials for Fusion Applications2018

    • Author(s)
      Akira Hasegawa
    • Organizer
      14th Japan-China Symposium on Materials for Advanced Energy Systems and Fission & Fusion Engineering(JCS-14)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Current Status of Irradiation Research of Tungsten for Fusion Reactor Application in Japan2018

    • Author(s)
      Akira Hasegawa
    • Organizer
      The 14th International Workshop on Spallation Materials Technology (IWSMT-14)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 核融合炉中性子照射環境下におけるタングウテン中の照射欠陥集合体形成と核変換による材料特性変化2018

    • Author(s)
      長谷川晃、野上修平、宮澤健
    • Organizer
      第12回核融合エネルギー連合講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] タングステン材料の再結晶挙動に及ぼすレニウム添加の影響2018

    • Author(s)
      寺田樹、宮澤健、野上修平、長谷川晃
    • Organizer
      日本原子力学会 2018年秋の大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 材料照射研究の現状と今後の課題 タングステン照射研究の現状と課題2018

    • Author(s)
      長谷川晃
    • Organizer
      第35回 プラズマ・核融合学会 年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 核融合炉用タングステン材料の高温引張り特性に及ぼすヘリウム注入の影響2018

    • Author(s)
      服部剛弥、宮澤健、長谷川晃
    • Organizer
      第35回 プラズマ・核融合学会 年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] ナノインデンテーション法によるタングステン材料の照射硬化評価2018

    • Author(s)
      大泉周平、宮澤健、野上修平、長谷川晃、安堂正己、谷川博康
    • Organizer
      第35回 プラズマ・核融合学会 年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 熱中性子遮へいを施して照射したタングステンとタングステン合金の機械特性2018

    • Author(s)
      宮澤健、Lauren M. Garrison, 加藤雄大、檜木達也、長谷川晃
    • Organizer
      第35回 プラズマ・核融合学会 年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 核融合炉用タングステン材料の微細組織発達に及ぼすヘリウム注入の影響2018

    • Author(s)
      井藤大智、宮澤健、野上修平、長谷川晃
    • Organizer
      第35回 プラズマ・核融合学会 年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 熱間圧延したタングステン板材の高温熱履歴による再結晶挙動2018

    • Author(s)
      宮澤 健、土田 航平、野上 修平、長谷川 晃
    • Organizer
      日本原子力学会 2018春の年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 核融合炉用タングステン合金の熱機械的特性   (1)純タングステンの熱機械特性と合金開発の概要2018

    • Author(s)
      野上 修平, 渡邊 捷太郎,服部 剛弥,Jens Reiser,Michael Rieth,土田 航平,宮澤 健 ,長谷川 晃
    • Organizer
      日本原子力学会 2018春の年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 核融合炉用タングステン合金の熱機械特性    (2)タングステンの熱機械特性に及ぼすカリウムドープの影響2018

    • Author(s)
      服部 剛弥,野上 修平,渡邊 捷太郎, Jens Reiser,Michael Rieth, 土田 航平,宮澤 健,長谷川 晃
    • Organizer
      日本原子力学会 2018春の年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 核融合炉用タングステン合金の熱機械特性    (3)タングステンの熱機械特性に及ぼすレニウム添加の影響2018

    • Author(s)
      渡邊 捷太郎, 野上 修平,服部 剛弥,Jens Reiser,Michael Rieth,土田 航平,宮澤 健,長谷川 晃
    • Organizer
      日本原子力学会 2018春の年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 中性子エネルギースペクトルの異なる原子炉で照射された純WおよびW-10Re合金における照射誘起Reクラスターの形成と照射硬化の挙動2018

    • Author(s)
      長谷川晃、黄泰現、宮澤健、野上修平、戸村恵子、海老澤直樹、外山健、永井康介、田中照也
    • Organizer
      日本金属学会 2018春の年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] ヘリウム注入したタングステン材料の高温引張特性2018

    • Author(s)
      宮澤 健、仁木 健人、黄 泰現、野上 修平、長谷川 晃
    • Organizer
      日本金属学会 2018春の年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Irradiation Effects of W  Current understandings and remaining subjects2017

    • Author(s)
      Akira HASEGAWA, Michael Rieth, Yutai Katoh
    • Organizer
      18th International Conference on Fusion Reactor Materials
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Thermal properties of pure tungsten and its alloys2017

    • Author(s)
      Makoto Fukuda, Akira Hasegawa, Shuhei Nogami
    • Organizer
      18th International Conference on Fusion Reactor Materials
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Recrystallization Behavior of Hot Rolled Pure Tungsten and Its Alloy Plates during High Temperature Annealing2017

    • Author(s)
      Kohei Tsuchida, Akira Hasegawa, Shuhei Nogami, Makoto Fukuda
    • Organizer
      18th International Conference on Fusion Reactor Materials
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of High Temperature Annealing on Tensile Properties of W and K-doped W Alloys2017

    • Author(s)
      T. Hattori, A. Hasegawa, S. Nogami, Y. Kajishima, M. Fukuda
    • Organizer
      18th International Conference on Fusion Reactor Materials
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] )Effect of Self-Ion Irradiation and Irradiation Temperature on Microstructural Development and Nano-Indentation Hardness of Tungsten and Tungsten-Rhenium Alloys2017

    • Author(s)
      aehyun Hwang, Tunenori Tabata, Makoto Fukuda, Kazumi Ozawa, Hiroyasu Tanigawa, Shuhei Nogami, Akira Hasegawa
    • Organizer
      18th International Conference on Fusion Reactor Material
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Study of Helium Effects on Mechanical Properties of Tungsten for Fusion Applications2017

    • Author(s)
      Takeshi, Miyazawa, Kento Niki, Taehyun Hwang, Kohei Tsuchida, Takaya Hattori, Makoto Fukuda, Shuhei Nogami and Akira Hasegawa
    • Organizer
      18th International Conference on Fusion Reactor Material
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Impact of Neutron Irradiation on Tungsten Materials2017

    • Author(s)
      Akira HASEGAWA
    • Organizer
      The 26th International Toki Conference (ITC-26) - New Era in Plasma and Fusion Research -& The 11th Asia Plasma and Fusion Association Conference
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 原子炉照射した純タングステンとタングステン合金における核変換元素のクラスター形成挙動2017

    • Author(s)
      黄 泰現、戸村 恵子、海老澤 直樹 、外山 健 、永井 康介 、長谷川 晃 、 福田 誠、宮澤 健、野上 修平
    • Organizer
      日本原子力学会 2017秋の年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 重イオン照射したタングステン材料の照射硬化挙動2017

    • Author(s)
      宮澤健、田畠恒紀、黄泰現 、福田誠 、長谷川晃 、野上修平 、谷川博康
    • Organizer
      日本原子力学会 2017秋の年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 高温長時間保持によるWおよびW合金の再結晶挙動2017

    • Author(s)
      土田 航平,黄 泰現,宮澤 健,福田 誠, 野上 修平,長谷川 晃
    • Organizer
      日本原子力学会 2017秋の年会
    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2024-01-30  

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