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Micro mechanism of transition from plasticity to brittleness of metallic glass

Research Project

Project/Area Number 20560645
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Structural/Functional materials
Research InstitutionYamagata University

Principal Investigator

NASU Toshio  Yamagata University, 地域教育文化学部, 教授 (00083436)

Co-Investigator(Kenkyū-buntansha) USUKI Takeshi  山形大学, 理学部, 教授 (70250909)
張 偉  東北大学, 金属材料研究所, 准教授 (20400400)
Co-Investigator(Renkei-kenkyūsha) ZHANG Wei  東北大学, 金属材料研究所, 准教授 (20400400)
Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2008: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords金属ガラス / 延性 / 脆性 / 原子構造 / EXAFS / 高エネルギーX-線回折 / ガラス形成能 / 延性-脆性転移 / 高エネルギーX-線回折実験 / Reverse Monte Carloシミュレーション / 組成依存性 / 短範囲構造 / 中・長距離構造
Research Abstract

The micro-mechanism of glass forming ability (GFA) and the transition from plasticity to brittleness of CuZr metallic glass with the amount of AlAg addition were researched by XAFS and high-energy x-ray diffraction methods. The solute atoms of Al and Ag are not arranged uniformly in the CuZr matrix. It means that the atomic pairs of Al-Al, Ag-Ag and Al-Ag observed more often than average distribution supposed from the alloy composition. It suggests that this inhomogeneity of solute atoms in CuZr matrix affects GFA and the change from plasticity to brittleness of CuZr based bulk metallic glass.

Report

(4 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (18 results)

All 2010 2009 2008 Other

All Journal Article (12 results) (of which Peer Reviewed: 11 results) Presentation (5 results) Remarks (1 results)

  • [Journal Article] Ionic conduction and local structure in AgI-As2Se3 glass2010

    • Author(s)
      M.Ishikawa, M.Sekine, T.Usuki, T.Nasu
    • Journal Title

      Journal of Physical Society of Japan 79

      Pages: 137-140

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Density variations in liquid tellurium : Roles of rings, chains and cavities2010

    • Author(s)
      J.Akola, R.O.Jones, S.Kohara, T.Usuki, E.Bychkov
    • Journal Title

      Physical Review B 81

      Pages: 94202-94202

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Ionic Conduction and Local Structure in AgI-As2Se3 glass2010

    • Author(s)
      M.Ishikawa, T.Usuki, T.Nasu
    • Journal Title

      J.Physical Society of Japan

      Volume: 79 Pages: 137-140

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Core-level and valence-band electron state in Zr-based bulk metallic glass2009

    • Author(s)
      T.Nasu, S.Hosokawa, M.Nakatake, H.Sato, W.Zhang, A.Inoue
    • Journal Title

      144

      Pages: 120421-120421

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Direct observation of radial distribution change during tensile deformation of metallic glass by high energy x-ray diffraction method2009

    • Author(s)
      T.Nasu, M.Sasaki, T.Usuki, K.Higashi, Y.Takigawa, Z.Wei, A.Inoue
    • Journal Title

      Journal of Alloys and Compounds 483

      Pages: 589-592

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Inhomogeneity and glassforming ability in the bulk metallic glass Pd42.5Ni7.5Cu30P20 as seen via x-ray spectroscopies2009

    • Author(s)
      S.Hosokawa, H.Sato, T.Ichitsubo, M.Nakatake, N.Happo, J.F.Berar, N.Boudet, T.Usuki, X.C.Pilgrim, E.Matsubara, N.Nishiyama
    • Journal Title

      Physical Review B 80

      Pages: 174204-174204

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Direct observation of radial distribution change during tensile deformati on of metallic glass by high energy X-ray diffraction method2009

    • Author(s)
      T.Nasu, M.Sasaki, T.Usuki, K.Higashi, Y.Takigawa, Z.wei, A.Inoue
    • Journal Title

      Journal of Alloys and Compounds 483

      Pages: 589-592

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Direct observation of radial distribution change during tensile deformation of metallic glass by high energy X-ray diffraction method2009

    • Author(s)
      T. Nasu, M. Sasaki, T. Usuki, M. Sekine, Y. Takigawa, K. Higashi, S. Kohara, M. Sakurai
    • Journal Title

      Journal of Alloys and Compounds (印刷中)

      Pages: 4-4

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Core-level and valence-band electron states in Zr-based bulk metallic glass2009

    • Author(s)
      T. Nasu, S. Hosokawa, M. Nakatake, H. Sato, W, Zhang, A. Inoue
    • Journal Title

      Journal of Physics 144

      Pages: 12041-12043

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Liquid structure of 1-Butyl-3-methyllimids zolium hexa fluorophosphate by Neutron Diffraction with H/D Isotopic substitution method2008

    • Author(s)
      M.Kanakubo, T.Ikeda, T.Aizawa, H.Nanjo, Y.Kameda, Y.Amo, T.Usuki
    • Journal Title

      Analytical Sciences 24

      Pages: 1373-1376

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Electronic states in Zr70Ni20Al10 bulk metallic glass2008

    • Author(s)
      T.Nasu, S.Hosokawa, M.Nakatake, H.Sato, W.Zhang, A.Inoue
    • Journal Title

      Hi-SOR Activity Repot 207

      Pages: 76-79

    • Related Report
      2010 Final Research Report
  • [Journal Article] Micro-structure change with the transition from plasticity to brittleness in Cu-Zr based metallic glasses

    • Author(s)
      T.Nasu, T.Usuki, E.Ohkubo, Z.wei, A.Inoue
    • Journal Title

      Journal of Alloys and Compounds (印刷中)

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] A Study on Micro-Structure Change of(Cu50Zr50)1-x(Al50Ag50)x Metallic Glass With Al-Ag Content2010

    • Author(s)
      Toshio Nasu, T.Usuki, Z.Wei
    • Organizer
      ISMANAM2010
    • Place of Presentation
      スイス・チューリッヒ
    • Year and Date
      2010-07-05
    • Related Report
      2010 Annual Research Report
  • [Presentation] Cu-Zr金属ガラスのAl-Ag添加による構造変化2010

    • Author(s)
      那須稔雄
    • Organizer
      日本金属学会
    • Place of Presentation
      筑波大学
    • Year and Date
      2010-03-29
    • Related Report
      2010 Final Research Report
  • [Presentation] Cu-Zr金属ガラスのAl-Ag添加による構造変化2010

    • Author(s)
      那須稔雄, 臼杵毅, 張偉, 井上明久
    • Organizer
      日本金属学会講演概要(2010年度春季大会)
    • Place of Presentation
      筑波大学
    • Year and Date
      2010-03-29
    • Related Report
      2009 Annual Research Report
  • [Presentation] Effect of Al addition on core-level and valence-band electron states in Zr7oNi30 metallic glass2008

    • Author(s)
      T. Nasu, S. Hosokawa, M. Nakatake, H. Sato, W. Zhang, A. Inoue
    • Organizer
      The IUMRS International Conference in Asia 2008
    • Place of Presentation
      名古屋
    • Year and Date
      2008-12-11
    • Related Report
      2008 Annual Research Report
  • [Presentation] Core-level and valence-band electron states in Zr-based bulk metallic glass2008

    • Author(s)
      T. Nasu, S. Hosokawa, M. Nakatake, H. Sato, W. Zhang, A. Inoue
    • Organizer
      The 13^<th> International Conference on Rapidly Quenched & Metastable Material
    • Place of Presentation
      ドイツ・ドレスデン
    • Year and Date
      2008-08-26
    • Related Report
      2008 Annual Research Report
  • [Remarks] ホームページ等

    • Related Report
      2010 Final Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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