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Toughness enhancement of ultra-fine grained W-TiC for fusion divertor applications

Research Project

Project/Area Number 19360412
Research Category

Grant-in-Aid for Scientific Research (B)

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

Principal Investigator

KURISHITA Hiroaki  Tohoku University, 金属材料研究所, 准教授 (50112298)

Co-Investigator(Kenkyū-buntansha) NAKAI Kiyomichi  愛媛大学, 理工学研究科, 教授 (60038114)
KOBAYASHI Sengo  愛媛大学, 理工学研究科, 准教授 (10304651)
SAKAMOTO Tatsuaki  愛媛大学, 理工学研究科, 助教 (80403848)
HATAKEYAMA Masahiko  東北大学, 金属材料研究所, 助教 (30375109)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥20,150,000 (Direct Cost: ¥15,500,000、Indirect Cost: ¥4,650,000)
Fiscal Year 2008: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Fiscal Year 2007: ¥12,480,000 (Direct Cost: ¥9,600,000、Indirect Cost: ¥2,880,000)
Keywordsタングステン / 炭化チタン / 再結晶・粒成長組織 / 結晶粒界 / 塑性加工 / 超塑性 / 室温延性 / 微細結晶粒 / 再結晶.粒成長組織 / 靭性 / 超微細粒
Research Abstract

先に研究代表者等により開発された超微細粒W-TiCは、耐照射特性に優れる等の多くの利点をもつが、厳しい熱負荷に晒される国際熱核融合実験炉(ITER)のダイバータに用いるためには高靱性化が必要である。高靱性化には塑性加工が有効であるので、超微細粒W-TiCの超塑性発現を塑性加工に適用する。まず、高温引張試験により超微細粒W-TiCの超塑性挙動を明らかにし、次にその結果を活用して塑性加工法を発案、実施した結果、再結晶・粒成長組織を示すにも関わらず結晶粒界が極めて強く、室温で曲げ延性を示す高靭性W-TiCの試作に成功した。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (27 results)

All 2009 2008 2007

All Journal Article (12 results) (of which Peer Reviewed: 11 results) Presentation (15 results)

  • [Journal Article] Observations of suppressed retention and blistering for tungsten exposed to deuterium-helium mixture plasmas2009

    • Author(s)
      M.Miyamoto, D.Nishijima, Y.Ueda, R.P.Doerner, H.Kurishita, M.J.Baldwin, S.Morito, K.Ono, J. Hannam
    • Journal Title

      Nucl.Fusion 49(in press)

    • Related Report
      2008 Final Research Report
  • [Journal Article] High temperature tensile properties and their application to toughness enhancement in ultra-fine grained W-(0-1.5)wt%TiC2009

    • Author(s)
      H.Kurishita, S.Matsuo, H.Arakawa, M.Narui, M.Yamazaki, T.Sakamoto, S.Kobayashi, K.Nakai, et.al.
    • Journal Title

      J.Nucl.Mater. 12

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Development of nanostructured W and Mo materials2009

    • Author(s)
      H.Kurishita, S.Matuso, H.Arakawa, H.Hirai, J.Linke, M.Kawai, N.Yoshida
    • Journal Title

      Advanced Materials Research 59

      Pages: 18-30

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Development of nanostructured W and Mo materials2009

    • Author(s)
      H. Kurishita, et.al.
    • Journal Title

      Advanced Materials Research 59

      Pages: 18-30

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High Temperature Tensile Properties and Their Application to Toughness Enhancement in Ultra-Fine Grained W-(0-1.5)wt%TiC2009

    • Author(s)
      H. Kurishita, et.al.
    • Journal Title

      J. Nucl. Mater 386-388

      Pages: 579-582

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Deformability enhancement in ultra-fine grained, Ar-contained W compacts by TiC additions up to 1.1%2008

    • Author(s)
      S.Matsuo, H.Kurishita, H.Arakawa, T.Takida, M.Kato, Y.Yamamoto, K.Takebe, M.Kawai, N.Yoshida
    • Journal Title

      Mater.Sci.Eng. A492

      Pages: 475-480

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Superplastic behavior of W-0.5wt%TiC with approximately 0.1 μm grain size2008

    • Author(s)
      H.Kurishita, S.Matsuo, H.Arakawa, S.Kobayashi, K.Nakai, T.Takida, K.Takebe, M.Kawai
    • Journal Title

      Mater.Sci.Eng.A 477

      Pages: 162-167

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Development of ultra-fine grained W-(0.25-0.8)wt% TiC and its superior resistance to neutron and 3MeV He-ion irradiations2008

    • Author(s)
      H. Kurishita, et.al.
    • Journal Title

      J. Nucl. Mater. 377

      Pages: 34-40

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Present status of study on development of materials resistant to radiation and beam impact2008

    • Author(s)
      M. Kawai, H. Kokawa, M. Michiuchi. H. Kurisihita, et.al.
    • Journal Title

      J. Nucl. Mater 377

      Pages: 21-27

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Deformability enhancement in ultra-fine grained, Ar-contained W compacts by TiC additions up to 1.1%2008

    • Author(s)
      S. Matsuo, H. Kurishita, et.al.
    • Journal Title

      Mater. Sci. Eng. A 492

      Pages: 475-480

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Superplastic deformation in W-0.5 wt.% TiC with approximately 0.1μm grainsize2008

    • Author(s)
      H. Kurishita, et. al.
    • Journal Title

      Mater. Sci. Eng. A 477

      Pages: 162-167

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High Temperature Tensile Properties and Their Application to Toughness Enhancement in Ultra-Fine Grained W-(0-1.5)wt%TiC2008

    • Author(s)
      H. Kurishita, et. al.
    • Journal Title

      J. Nucl. Mater. (掲載確定)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] 第52回テキサトール国内技術委員会2009

    • Author(s)
      栗下裕明
    • Organizer
      タングステン開発研究(高靭性W-TiC開発の現状と平成21年度の計画)
    • Place of Presentation
      核融合科学研究所
    • Year and Date
      2009-04-17
    • Related Report
      2008 Final Research Report
  • [Presentation] 超微細粒W-TiCの高靭性化と材料照射計画2008

    • Author(s)
      栗下裕明, 他
    • Organizer
      材料損傷機構の実験および理論による包括的研究と高エネルギー量子ビーム場用材料開発の衝撃損傷研究に係わる研究会
    • Place of Presentation
      北海道大学東京オフィス
    • Year and Date
      2008-06-26
    • Related Report
      2008 Annual Research Report
  • [Presentation] 超微結晶粒タングステン開発の現状2008

    • Author(s)
      栗下裕明
    • Organizer
      PWI合同研究会
    • Place of Presentation
      核融合科学研究所
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] Development of Ultra-fine Grained W-TiC with Improved Toughness and Radiation Performance2008

    • Author(s)
      H.Kurishita, H.Arakawa, S.Matsuo, T.Sakamoto, S.Kobayashi, K.Nakai, T.Takida, M.Kato, T.Yamamoto, K.Takebe, M.Kawai, N.Yoshida
    • Organizer
      9th Inter.Workshop on Spallation Materials Technologies
    • Place of Presentation
      Sapporo, Japan
    • Related Report
      2008 Final Research Report
  • [Presentation] メカニカルアロイング法により作製したW-TiC合金の微細組織2008

    • Author(s)
      梶岡道生, 阪本辰顕, 仲井清眞, 小林千悟, 栗下裕明, 松尾悟, 荒川英夫
    • Organizer
      日本金属学会2008年秋期大会
    • Place of Presentation
      熊本大学
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] Development of nanostructured W and Mo materials2008

    • Author(s)
      H.Kurishita, S.Matuso, H.Arakawa, H.Hirai, J.Linke, M.Kawai, N.Yoshida
    • Organizer
      1st Inter.Conf.on New Materials for Extreme Environments
    • Place of Presentation
      San Sebastian, Spain
    • Related Report
      2008 Final Research Report
  • [Presentation] 超微細粒W-TiCの高靭性化2008

    • Author(s)
      栗下裕明
    • Organizer
      第9回核破砕材料の科学と技術の研究会
    • Place of Presentation
      日本原子力研究開発機構
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Presentation] Development of nanostructured W and Mo materials2008

    • Author(s)
      H. Kurishita, et.al.
    • Organizer
      1st Inter. Conf. on New Materials for Extreme Environments
    • Place of Presentation
      San Sebastian, Spain
    • Related Report
      2008 Annual Research Report
  • [Presentation] Development of Ultra-fine Grained W-TiC with Improved Toughness and Radiation Performance2008

    • Author(s)
      H. Kurishita, et.al.
    • Organizer
      9th Inter. Workshop on Spallation Materials Technologies
    • Place of Presentation
      札幌大学
    • Related Report
      2008 Annual Research Report
  • [Presentation] High Temperature Tensile Properties and Their Application to Toughness Enhancement in Ultra-Fine Grained W-(0-1.5)wt%TiC2007

    • Author(s)
      H. Kurishita, et. al.
    • Organizer
      13th Inter. Conf. on Fusion Reactor Materials
    • Place of Presentation
      Nice, France
    • Year and Date
      2007-12-14
    • Related Report
      2007 Annual Research Report
  • [Presentation] 超微細結晶粒W-TiCの超塑性発現と高靭性化2007

    • Author(s)
      栗下裕明
    • Organizer
      本原子力学会2007年秋の大会
    • Place of Presentation
      北九州国際会議場
    • Year and Date
      2007-09-29
    • Related Report
      2008 Final Research Report
  • [Presentation] 超微細結晶粒W-TiCの超塑性発現と高靭性化2007

    • Author(s)
      栗下 裕明, 他
    • Organizer
      日本原子力学会 2007年秋の大会
    • Place of Presentation
      北九州国際会議場
    • Year and Date
      2007-09-29
    • Related Report
      2007 Annual Research Report
  • [Presentation] Superplasticity and Its Application to Toughness Improvement in Ultra-fine Grained W-TiC2007

    • Author(s)
      H. Kurishita, et. al.
    • Organizer
      2007 Japan-US Workshop on Heat Removal and Plasma Materials Interactions for Fusion, Fusion High Power Density Components and System, and IEA Workshop on Solid Surface Plasma Facing Components
    • Place of Presentation
      Nara, Japan
    • Year and Date
      2007-07-26
    • Related Report
      2007 Annual Research Report
  • [Presentation] High Temperature Tensile Properties and Their Application to Toughness Enhancement in Ultra-Fine Grained W-(0-1.5)wt%TiC2007

    • Author(s)
      H.Kurishita, S.Matsuo, H.Arakawa, M.Narui, M.Yamazaki, T.Sakamoto, S.Kobayashi, K.Nakai, et.al.
    • Organizer
      13th Inter.Conf.on Fusion Reactor Materials
    • Place of Presentation
      Nice, France
    • Related Report
      2008 Final Research Report
  • [Presentation] Superplasticity and its Application to Toughness Improvement in Ultra-fine Grained W-TiC2007

    • Author(s)
      H. Kurishita et.al.
    • Organizer
      2007 Japan-US Workshop on Heat Removal and Plasma Materials Interactions for Fusion, Fusion High Power Density Components and System, and IEA Workshop on Solid Surface Plasma Facing Components
    • Place of Presentation
      Nara Japan
    • Related Report
      2008 Final Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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