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Computational alloy design for improvement of mechanical properties in HCP metals

Research Project

Project/Area Number 16K06714
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Physical properties of metals/Metal-base materials
Research InstitutionJapan Atomic Energy Agency

Principal Investigator

Tsuru Tomohito  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 原子力科学研究所 原子力基礎工学研究センター, 研究副主幹 (80455295)

Research Collaborator Somekawa Hidetoshi  
Chrzan Daryl C  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords転位構造 / 合金設計 / 電子状態解析 / 金属物性 / 力学特性 / 転位運動 / 計算科学 / 塑性異方性 / 六方晶合金 / 転位芯構造解析 / 破壊靱性評価 / 第一原理計算 / 格子欠陥 / 計算物理
Outline of Final Research Achievements

Solution strengthening is a well-known approach to tailoring the mechanical properties of structural alloys. Ultimately, the properties of the dislocation/solute interaction are rooted in the electronic structure of the alloy. Accordingly, we compute the electronic structure associated with, and the energy barriers to dislocation cross-slip. The energy barriers so obtained can be used in the development of multiscale models for dislocation mediated plasticity. The computed electronic structure can be used to identify substitutional solutes likely to interact strongly with the dislocation. Using the example of a-type screw dislocations in HCP metals, we compute accurately the Peierls barrier to secondary slip and argue that some solutes should interact strongly with the studied dislocation, and thereby decrease the dislocation slip anisotropy in the alloy.

Academic Significance and Societal Importance of the Research Achievements

合金化に対する電子状態を考慮した欠陥構造のモデリングに注力し,転位構造と合金元素の電子的な相互作用がもたらす影響を評価する新たな枠組みを構築することで,材料の力学特性の理解に大きく貢献した.さらに,材料設計における普遍的な問題である合金化による力学特性の評価において,従来の試行錯誤で行われていた材料開発に新たなアプローチを提案した.これらの元素戦略による材料設計は学術的な革新性のみならず,資源の少ない我が国において効率的な材料開発が可能になるという観点から工学的にも意義がある.

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (47 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (3 results) Journal Article (16 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 15 results,  Open Access: 1 results,  Acknowledgement Compliant: 4 results) Presentation (24 results) (of which Int'l Joint Research: 11 results,  Invited: 8 results) Remarks (4 results)

  • [Int'l Joint Research] カリフォルニア大学バークレー校(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] カリフォルニア大学バークレー校/ローレンスバークレー国立研究所(米国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] カリフォルニア大学バークレー校(米国)

    • Related Report
      2016 Research-status Report
  • [Journal Article] First-principles calculation of multiple hydrogen segregation along aluminum grain boundaries2019

    • Author(s)
      Yamaguchi M.、Ebihara K.-I.、Itakura M.、Tsuru T.、Matsuda K.、Toda H.
    • Journal Title

      Computational Materials Science

      Volume: 156 Pages: 368-375

    • DOI

      10.1016/j.commatsci.2018.10.015

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] First-principles calculations of interaction between solutes and dislocations in tungsten2018

    • Author(s)
      Tsuru T.、Suzudo T.
    • Journal Title

      Nuclear Materials and Energy

      Volume: 16 Pages: 221-225

    • DOI

      10.1016/j.nme.2018.07.007

    • NAID

      120006552915

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] First-principles study of hydrogen segregation at the MgZn2 precipitate in Al-Mg-Zn alloys2018

    • Author(s)
      Tsuru T.、Yamaguchi M.、Ebihara K.、Itakura M.、Shiihara Y.、Matsuda K.、Toda H.
    • Journal Title

      Computational Materials Science

      Volume: 148 Pages: 301-306

    • DOI

      10.1016/j.commatsci.2018.03.009

    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Interfacial segregation and fracture in Mg-based binary alloys; Experimental and first-principles perspective2018

    • Author(s)
      T. Tsuru, H. Somekwa and D. C. Chrzan
    • Journal Title

      Acta Materialia

      Volume: 151 Pages: 78-86

    • DOI

      10.1016/j.actamat.2018.03.061

    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] First-principles study of solvent-solute mixed dumbbells in body-centered-cubic tungsten crystals2018

    • Author(s)
      Suzudo Tomoaki、Tsuru Tomohito、Hasegawa Akira
    • Journal Title

      Journal of Nuclear Materials

      Volume: 505 Pages: 15-21

    • DOI

      10.1016/j.jnucmat.2018.03.052

    • NAID

      120006956359

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Microstructure evolution in a hydrogen charged and aged Al-Zn-Mg alloy2018

    • Author(s)
      Bendo Artenis、Matsuda Kenji、Lee Seungwon、Nishimura Katsuhiko、Toda Hiroyuki、Shimizu Kazuyuki、Tsuru Tomohito、Yamaguchi Masatake
    • Journal Title

      Materialia

      Volume: 3 Pages: 50-56

    • DOI

      10.1016/j.mtla.2018.09.035

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Origin of tension-compression asymmetry in ultrafine-grained fcc metals”, Physical Review Materials2017

    • Author(s)
      T. Tsuru
    • Journal Title

      Physical Review Materials

      Volume: 1 Issue: 3 Pages: 033604-033604

    • DOI

      10.1103/physrevmaterials.1.033604

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Lattice softening in body-centered-cubic lithium-magnesium alloys2017

    • Author(s)
      I. S. Winter, T. Tsuru and D. C. Chrzan
    • Journal Title

      Physical Review Materials

      Volume: 1 Issue: 3 Pages: 033606-033606

    • DOI

      10.1103/physrevmaterials.1.033606

    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Journal Article] Effect of alloying elements on grain boundary sliding in magnesium binary alloys: Experimental and numerical studies2017

    • Author(s)
      H. Somekawa and T. Tsuru
    • Journal Title

      Materials Science and Engineering: A

      Volume: 708 Pages: 267-273

    • DOI

      10.1016/j.msea.2017.09.095

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effect of crystal orientation on incipient plasticity during nanoindentation of magnesium2017

    • Author(s)
      H. Somekawa, T. Tsuru, A. Singh, S. Miura and C. A. Schuh
    • Journal Title

      Acta Materialia

      Volume: 139 Pages: 21-29

    • DOI

      10.1016/j.actamat.2017.07.052

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Chemical misfit origin of solute strengthening in iron alloys2017

    • Author(s)
      M. Wakeda, T. Tsuru, M. Kohyama, T. Ozaki, H. Sawada, M. Itakura and S. Ogata
    • Journal Title

      Acta Materialia

      Volume: 131 Pages: 445-445

    • DOI

      10.1016/j.actamat.2017.04.017

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Alloy Design and Mechanical Properties: First-principles Calculations of Dislocation Core2017

    • Author(s)
      都留智仁
    • Journal Title

      Materia Japan

      Volume: 56 Issue: 1 Pages: 5-13

    • DOI

      10.2320/materia.56.5

    • NAID

      130005180703

    • ISSN
      1340-2625, 1884-5843
    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Effect of twin boundary on crack propagation behavior in magnesium binary alloys; Experimental and calculation studies2017

    • Author(s)
      H. Somekawa, T. Tsuru
    • Journal Title

      Scripta Materialia

      Volume: 130 Pages: 114-114

    • DOI

      10.1016/j.scriptamat.2016.11.022

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Dislocations near elastic instability in high pressure body-centered cubic magnesium2017

    • Author(s)
      I. S. Winter, M. Poschmann, T. Tsuru, M. Asta and D. C. Chrzan
    • Journal Title

      Physical Review B

      Volume: 95 Issue: 6 Pages: 064107-064107

    • DOI

      10.1103/physrevb.95.064107

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Atomic Scale Simulations of Relationship between Macroscopic Mechanical Properties and Microscopic Defect Evolution in Ultrafine-grained Metals2016

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

      MATERIALS TRANSACTIONS

      Volume: 57 Issue: 9 Pages: 1476-1481

    • DOI

      10.2320/matertrans.MH201515

    • NAID

      130005289892

    • ISSN
      1345-9678, 1347-5320
    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Novel Cross-Slip Mechanism of Pyramidal Screw Dislocations in Magnesium2016

    • Author(s)
      M. Itakura, H. Kaburaki, M. Yamaguchi and T. Tsuru
    • Journal Title

      Physical Reveiw Letters

      Volume: 116 Issue: 22 Pages: 225501-225501

    • DOI

      10.1103/physrevlett.116.225501

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Presentation] Effect of solutes on dislocation core structure and motion2018

    • Author(s)
      T. Tsuru
    • Organizer
      7th ESISM International Workshop
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] DFT-based predictions of the effect of solutes on dislocation motion in bcc and hcp alloys2018

    • Author(s)
      T. Tsuru, T. Suzudo, M. Itakura, M. Yamaguch, M. Wakeda, S. Ogata, D. C. Chrzan
    • Organizer
      International Symposium on Atomistic Processes of Crystal Plasticity
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] First-principles study on effect of Re, Os and 5d solutes on dislocation motion in W alloys2018

    • Author(s)
      T. Tsuru, T. Suzudo, M. Wakeda, S. Ogata and D. C. Chrzan
    • Organizer
      The 10th Korea-Japan Berkeley Symposium
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Effect of transmutation products on materials properties in tungsten alloys2018

    • Author(s)
      T. Tsuru, T. Suzudo, M. Wakeda, S. Ogata and D. C. Chrzan
    • Organizer
      The 11th International Workshop on Materials Behavior at the Micro- and Nano- Scale
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 六方晶合金の特異なすべり特性と合金元素の影響に関する研究2018

    • Author(s)
      都留智仁・山口正剛・板倉充洋・D.C. Chrzan
    • Organizer
      金属学会2019年春期(第164回)講演大会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Effect of solutes on dislocation motion in dilute hcp and bcc alloys2018

    • Author(s)
      T. Tsuru, M. Itakura, M. Yamaguch, T. Suzudo, M. Wakeda, S. Ogata, D. C. Chrzan
    • Organizer
      The 9th international conference on Multiscale Materials Modeling
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ti合金の変形モード変化に対する合金元素の影響:第一原理計算2018

    • Author(s)
      都留智仁,山口正剛,板倉充洋
    • Organizer
      日本機械学会 M&M2018材料力学カンファレンス
    • Related Report
      2018 Annual Research Report
  • [Presentation] BCC合金の機械特性に対する合金元素の影響2018

    • Author(s)
      都留智仁,鈴土知明,譯田真人,尾方成信
    • Organizer
      日本金属学会2018年秋期講演(第163回)大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 六方晶Tiの多様なすべり系の転位運動と酸素固溶の影響2017

    • Author(s)
      都留智仁,板倉充洋,D. C. Chrzan
    • Organizer
      日本金属学会第160回春期大会
    • Place of Presentation
      首都大学東京南大沢キャンパス(東京都八王子市)
    • Year and Date
      2017-03-15
    • Related Report
      2016 Research-status Report
  • [Presentation] First-principles study on effects of alloying elements on deformation and fracture2017

    • Author(s)
      T. Tsuru, H. Somekawa, M. Yamaguchi, M. Itakura, D. C. Chrzan
    • Organizer
      CDMSI International Workshop on "Scale bridging for the atomistic design of high performance materials”
    • Place of Presentation
      ステーションコンファレンス東京(東京都千代田区)
    • Year and Date
      2017-02-20
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Theory of Solute Dislocation Interactions in HCP Metals2017

    • Author(s)
      D. C. Chrzan, T. Tsuru, M. Poschmann, L. Qi and M. Asta
    • Organizer
      International Conference on Plasticity, Damage, and Fracture 2017
    • Place of Presentation
      Puerto Vallarta, Mexico
    • Year and Date
      2017-01-03
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] First-principles calculations of interaction between 5d solutes and dislocation in tungsten2017

    • Author(s)
      T. Tsuru and T. Suzudo
    • Organizer
      The 18th Internation Conference on Fusion Reactor Materials
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Anomalous strengthening mechanism in HCP Ti2017

    • Author(s)
      T. Tsuru
    • Organizer
      9th Korea-Japan Berkeley Symposium
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 六方晶Tiの転位運動と合金元素との相互作用の第一原理計算2017

    • Author(s)
      都留智仁,山口正剛,板倉充洋,D. C. Chrzan
    • Organizer
      金属学会2018年春期(第162回)講演大会
    • Related Report
      2017 Research-status Report
  • [Presentation] First-principles and experimental study on interfacial fracture in Mg alloys2017

    • Author(s)
      都留智仁,染川英俊
    • Organizer
      第27回日本MRS年次大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Effects of alloying elements on deformation and fracture: First-principles approach to element strategy2016

    • Author(s)
      都留智仁,染川英俊,山口正剛,板倉充洋
    • Organizer
      第26回日本MRS年次大会
    • Place of Presentation
      万国橋会議センター(神奈川県横浜市)
    • Year and Date
      2016-12-19
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] Al 結晶粒界及び析出物界面の水素偏析による凝集エネルギー低下2016

    • Author(s)
      山口正剛,海老原健一,都留智仁,板倉充洋
    • Organizer
      日本軽金属学会第131回秋期大会
    • Place of Presentation
      茨城大学 水戸キャンパス(茨城県水戸市)
    • Year and Date
      2016-11-05
    • Related Report
      2016 Research-status Report
  • [Presentation] 純アルミニウムにおける水素昇温脱離スペクトルの数値シミュレーションによる考察2016

    • Author(s)
      海老原健一,山口正剛,都留智仁,板倉充洋
    • Organizer
      日本軽金属学会第131回秋期大会
    • Place of Presentation
      茨城大学 水戸キャンパス(茨城県水戸市)
    • Year and Date
      2016-11-05
    • Related Report
      2016 Research-status Report
  • [Presentation] 変形双晶含有Mg合金の靱性・き裂進展挙動に及ぼす溶質元素の影響2016

    • Author(s)
      染川英俊,都留智仁,津崎兼彰,井上忠信
    • Organizer
      日本金属学会第159回秋季大会
    • Place of Presentation
      大阪大学 豊中キャンパス(大阪府豊中市)
    • Year and Date
      2016-09-21
    • Related Report
      2016 Research-status Report
  • [Presentation] 分子動力学法により作成したランダム粒界に含まれる多面体構造の安定性2016

    • Author(s)
      東出祐介,榎木勝徳,都留智仁,山口正剛,大谷博司
    • Organizer
      日本金属学会第159回秋季大会
    • Place of Presentation
      大阪大学 豊中キャンパス(大阪府豊中市)
    • Year and Date
      2016-09-21
    • Related Report
      2016 Research-status Report
  • [Presentation] マグネシウム錐面転位の新奇な交差すべり2016

    • Author(s)
      板倉充洋,山口正剛,都留智仁
    • Organizer
      日本金属学会第159回秋季大会
    • Place of Presentation
      大阪大学 豊中キャンパス(大阪府豊中市)
    • Year and Date
      2016-09-21
    • Related Report
      2016 Research-status Report
  • [Presentation] Effect of solute on dislocation motion and fracture toughness in Mg2016

    • Author(s)
      T. Tsuru
    • Organizer
      8th Korea-Japan Berkeley Symposium 2016
    • Place of Presentation
      弘前市民会館(青森県弘前市)
    • Year and Date
      2016-07-17
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Solute-induce changes in dislocation motion in Mg and Ti2016

    • Author(s)
      T. Tsuru, L. Qi, D. C. Chrzan, M. Yamaguchi and M. Itakura
    • Organizer
      International Conference MSMF8
    • Place of Presentation
      Brno, Czech Republich
    • Year and Date
      2016-06-27
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 欠陥組織と合金元素の機械特性への影響に関する原子・電子シミュレーション2016

    • Author(s)
      都留智仁
    • Organizer
      日本塑性加工学会 圧延工学分科会 第123回研究会
    • Place of Presentation
      東京電機大学 東京千住キャンパス(東京都足立区)
    • Related Report
      2016 Research-status Report
  • [Remarks] 電子状態の計算シミュレーションで産業利用価値の高い合金を設計する

    • URL

      https://www.jaea.go.jp/02/press2018/p18051102/

    • Related Report
      2018 Annual Research Report
  • [Remarks] 照射材料工学研究グループHP

    • URL

      https://nsec.jaea.go.jp/fme/group5/group5_index.htm

    • Related Report
      2018 Annual Research Report
  • [Remarks] 照射材料工学研究グループHP

    • URL

      https://nsec.jaea.go.jp/fme/group5/group5_3.htm

    • Related Report
      2017 Research-status Report
  • [Remarks] Chrzan Research Group

    • URL

      http://chrzan.mse.berkeley.edu/

    • Related Report
      2017 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2022-02-21  

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