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Atomistic and dislocation studies of the macroscopic characteristics and the interaction between dislocation and grain boundary

Research Project

Project/Area Number 19860088
Research Category

Grant-in-Aid for Young Scientists (Start-up)

Allocation TypeSingle-year Grants
Research Field Materials/Mechanics of materials
Research InstitutionJapan Atomic Energy Agency

Principal Investigator

TSURU Tomohito  Japan Atomic Energy Agency, 原子力基礎工学研究部門, 研究員 (80455295)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥2,238,000 (Direct Cost: ¥1,980,000、Indirect Cost: ¥258,000)
Fiscal Year 2008: ¥1,118,000 (Direct Cost: ¥860,000、Indirect Cost: ¥258,000)
Fiscal Year 2007: ¥1,120,000 (Direct Cost: ¥1,120,000)
Keywords転位 / 粒界 / 状態遷移解析 / 離散転位力学法 / マルチスケールモデル / 対応粒界 / 相互作用エネルギー / 小角粒界 / ランダム粒界 / 活性化エネルギー
Research Abstract

低Σ値の粒界に対する第一原理計算により, 内殻が閉殻な金属に比べて方向性の強い結合を持つものの方が安定な粒界を形成することを示した.転位とΣ3粒界の相互作用の状態遷移解析により, エネルギー障壁を定量的に示しDSC転位と粒界に垂直なステップ転位に分解して低エネルギー障壁で粒界すべりを引き起こすことがわかった. また, 離散転位法と境界要素法のマルチスケールモデルを構築しメゾスケールの変形特性の評価を行った.

Report

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

    (24 results)

All 2009 2008 2007 Other

All Journal Article (13 results) (of which Peer Reviewed: 6 results) Presentation (10 results) Remarks (1 results)

  • [Journal Article]2009

    • Author(s)
      T. Tsuru, Y. Shibutani and Y. Kaji
    • Journal Title

      Physical Review B 79

      Pages: 12104-12104

    • Related Report
      2008 Final Research Report
  • [Journal Article] Fundamental Interaction Process between Pure Edge Dislocation and Energetically Stable Grain Boundary2009

    • Author(s)
      T. Tsuru, Y. Shibutani, Y. Kaji
    • Journal Title

      Physical Review B 79

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article]2008

    • Author(s)
      T. Tsuru and Y. Shibutani
    • Journal Title

      J. Comput. Sci. Tech. 2

      Pages: 559-567

    • Related Report
      2008 Final Research Report
  • [Journal Article]2008

    • Author(s)
      T. Tsuru and Y. Shibutani
    • Journal Title

      J. Comput. Sci. Tech. 2

      Pages: 459-467

    • Related Report
      2008 Final Research Report
  • [Journal Article]2008

    • Author(s)
      都留智仁・渋谷陽二
    • Journal Title

      日本機械学会論文集(A編) 74

      Pages: 933-938

    • Related Report
      2008 Final Research Report
  • [Journal Article] Theoretical Investigation of the Displacement Burst Observed in Nanoindentation by Collective Dislocation Loops Nucleation Model2008

    • Author(s)
      T. Tsuru, Y. Shibutani
    • Journal Title

      Journal of Computational Science and Technology 2

      Pages: 559-567

    • NAID

      110006380460

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dislocation Nucleation and Interaction under Nanoindentation in Sinle Crystalline Al and Cu2008

    • Author(s)
      T. Tsuru, Y. Shibutani
    • Journal Title

      Journal of Computational Science and Technology 2

      Pages: 459-467

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 三次元離散転位力学法と境界要素法のマルチスケール解析とインデンテーション問題への応用2008

    • Author(s)
      都留智仁, 渋谷陽二
    • Journal Title

      日本機械学会論文集(A編) 74

      Pages: 933-938

    • NAID

      110006836783

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article]2007

    • Author(s)
      都留智仁・渋谷陽二
    • Journal Title

      日本機械学会論文集(A編) 73

      Pages: 877-882

    • Related Report
      2008 Final Research Report
  • [Journal Article]2007

    • Author(s)
      都留智仁・渋谷陽二
    • Journal Title

      日本機械学会論文集(A編) 73

    • Related Report
      2008 Final Research Report
  • [Journal Article] 単結晶AlとCuのナノインデンテーションにおける転位の生成と転位間相互作用に関する検討2007

    • Author(s)
      都留 智仁・渋谷 陽二
    • Journal Title

      日本機械学会論文集(A編) 第73巻

      Pages: 738-743

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 転位のエネルギーに基づくナノインデンテーションにおける変位バースト現象の検討2007

    • Author(s)
      都留 智仁・渋谷 陽二
    • Journal Title

      日本機械学会論文集(A編) 第73巻

      Pages: 877-882

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Atomistic investigation of structural changes and reaction energy induced by dislocation-grain boundary interaction process in fcc aluminum and bcc iron2007

    • Author(s)
      T. Tsuru, Y. Shibutani, Y. Kaji
    • Journal Title

      APCOM'07 in conjunction with EPMESC XI

    • Related Report
      2007 Annual Research Report
  • [Presentation]2009

    • Author(s)
      都留智仁・鈴木知史・加治芳行
    • Organizer
      日本金属学会2009年春期(第144回)大会
    • Related Report
      2008 Final Research Report
  • [Presentation] 第一原理計算によるa-Fe中の不純物元素の析出に関する傾向予測2009

    • Author(s)
      都留智仁, 鈴木知史, 加治芳行, 塚田隆
    • Organizer
      金属学会2009年春期(第144回)大会
    • Place of Presentation
      東京
    • Related Report
      2008 Annual Research Report
  • [Presentation] インデンテーションの力学と計算材料科学2008

    • Author(s)
      都留智仁・鈴木知史・加治芳行
    • Organizer
      第229回材料力学談話会, 材談07-15
    • Place of Presentation
      大阪科学技術センター
    • Year and Date
      2008-02-04
    • Related Report
      2008 Final Research Report
  • [Presentation] インデンテーションの力学と計算材料科学2008

    • Author(s)
      都留 智仁
    • Organizer
      第229回 材料力学談話会(依頼講演)
    • Place of Presentation
      大阪
    • Year and Date
      2008-02-04
    • Related Report
      2007 Annual Research Report
  • [Presentation]2008

    • Author(s)
      T. Tsuru, C. Suzuki, M. Yamaguchi and Y. Kaji
    • Organizer
      4th International Conference on Multiscale Materials Modeling
    • Place of Presentation
      Florida, USA
    • Related Report
      2008 Final Research Report
  • [Presentation] Clustering process and precipitation hardening in Fe-Cu alloys ; First-principle and empirical model evaluations2008

    • Author(s)
      T. Tsuru, C. Suzuki, M. Yamaguchi, Y. Kaji
    • Organizer
      The 4th International Conference on Multiscale Materials Modeling (MMM2008)
    • Place of Presentation
      Florida, USA
    • Related Report
      2008 Annual Research Report
  • [Presentation]2007

    • Author(s)
      T. Tsuru, Y. Shibutani and Y. Kaji
    • Organizer
      The 3rd Asian-Pacific Congress on Computational Mechanics (APCOM'07) in conjunction with EPMESC XI
    • Place of Presentation
      Kyoto, Japan
    • Related Report
      2008 Final Research Report
  • [Presentation]2007

    • Author(s)
      都留智仁・渋谷陽二
    • Organizer
      日本機械学会2007年度年次大会
    • Related Report
      2008 Final Research Report
  • [Presentation] 離散転位力学解析と転位の弾性エネルギーに基づくナノインデンテーションにおける変位バースト現象と転位の集団挙動の評価2007

    • Author(s)
      都留 智仁・渋谷 陽二
    • Organizer
      日本機械学会2007年年次大会
    • Place of Presentation
      大阪
    • Related Report
      2007 Annual Research Report
  • [Presentation] Atomistic investigation of structural changes and reaction energy induced by dislocation-grain boundary interaction process in fcc aluminum and bcc iron2007

    • Author(s)
      T. Tsuru, Y. Shibutani, Y. Kaji
    • Organizer
      APCOM'07 in conjunction with EPMESC XI
    • Place of Presentation
      京都
    • Related Report
      2007 Annual Research Report
  • [Remarks]

    • URL

      http://www.jaea.go.jp/04/nsed/fme/group5/group5_index.htm

    • Related Report
      2008 Annual Research Report

URL: 

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

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