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Preparation of Giant Pseudo-Single Crystals of Superelastic Alloys and the Mechanism of Grain Growth

Research Project

Project/Area Number 24656426
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field Material processing/treatments
Research InstitutionTohoku University

Principal Investigator

ISHIDA Kiyohito  東北大学, 工学(系)研究科(研究院), 名誉教授 (20151368)

Co-Investigator(Kenkyū-buntansha) OHNUMA Ikuo  東北大学, 大学院工学研究科, 准教授 (20250714)
OMORI Toshihiro  東北大学, 大学院工学研究科, 助教 (60451530)
Project Period (FY) 2012-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords結晶粒成長 / Cu基形状記憶合金 / 熱処理 / 異常粒成長 / 繰り返し熱処理 / 亜結晶粒 / Cu基形状記憶合金 / 正常粒成長 / ピン止め効果 / 超弾性特性 / 相対粒径 / 制震材料
Research Abstract

The grain growth of beta(bcc) phase in Cu-Al-Mn base shape memory alloys has been studied. The abnormal grain growth was realized when the Cu-Al-Mn alloys were first quenched from the beta single-phase region at high temperature round 1173K and then was slowly cooled at about 773K, and subsequent heating to the beta single-region. The pseudo-single crystals due to abnormal grain growth were obtained by thermally cycling where beta phase leads to a precipitation and subsequent dissolution of the alpha phase. This abnormal grain growth phenomenon results from the formation of subgrain structure introduced through phase transformation, where the subgrain-boundary energy might be one of the driving force. These findings provide a method of fabricating a single-crystal or large-grain structure important for superelastic properties.

Report

(3 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • Research Products

    (16 results)

All 2014 2013 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (9 results) (of which Invited: 1 results) Remarks (1 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Grain size dependence of pseudoelasticity in polycrystalline, Cu-Al- Mn- based shape memory sheets2013

    • Author(s)
      Y. Sutou, T. Omori, R. Kainuma, K. Ishida
    • Journal Title

      ACTA MATERIALIA

      Volume: 61 Issue: 10 Pages: 3842-3850

    • DOI

      10.1016/j.actamat.2013.03.022

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Two- and Three-Dimensional Grain Growth in the Cu–Al–Mn Shape Memory Alloy2013

    • Author(s)
      T. Kusama, T. Omori, T. Saito, I. Ohnuma, K. Ishida, R. Kainuma
    • Journal Title

      MATERIALS TRANSACTIONS

      Volume: 54 Issue: 10 Pages: 2044-2048

    • DOI

      10.2320/matertrans.M2013167

    • NAID

      10031201562

    • ISSN
      1345-9678, 1347-5320
    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Abnormal Grain Growth Induced by Cyclic Heat Treatment2013

    • Author(s)
      T Omori, T. Kusama, S. Kawata, I. Ohnuma, Y. Sutou, Y. Araki, K. Ishida, R. Kainuma
    • Journal Title

      SCIENCE

      Volume: 341 Issue: 6153 Pages: 1500-1502

    • DOI

      10.1126/science.1238017

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Grain size dependence of pseudoelasticity in polycrystalline Cu-Al-Mn-based shape memory sheets2013

    • Author(s)
      Y. Sutou, T. Omori, R. Kainuma, K. Ishida
    • Journal Title

      Acta Materialia

      Volume: 印刷中

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] Cu-Al-Mn 形状記憶合金における相変態を利用した異常粒成長2014

    • Author(s)
      草間知枝、川田紳悟、大森俊洋、大沼郁雄、須藤祐司、石田清仁、貝沼亮介
    • Organizer
      日本金属学会2014年(第154回)春期講演大会
    • Place of Presentation
      東京工業大学
    • Year and Date
      2014-03-22
    • Related Report
      2013 Final Research Report
  • [Presentation] Normal grain growth behavior in two- and three- dimensional modes of Cu-Al-Mn shape memory alloy2013

    • Author(s)
      T. Kusama, T. Omori, T. Saito, I. Ohnuma, K. Ishida, R. Kainuma
    • Organizer
      Joint Symposium on Materials Science and engineering for the 21^<st> Century
    • Place of Presentation
      Hsinchu, Taiwan
    • Year and Date
      2013-06-23
    • Related Report
      2013 Final Research Report
  • [Presentation] Grain Growth Behavior of Cu-Al-Mn Shape Memory Alloys with BCC Structure2013

    • Author(s)
      T. Kusama, T. Omori, T. Saito, I. Ohnuma, K. Ishida, R. Kainuma
    • Organizer
      5^<th> International Conferenceon Recrystallization & Grain Growth
    • Place of Presentation
      Sedney Australia
    • Year and Date
      2013-05-06
    • Related Report
      2013 Final Research Report
  • [Presentation] 合金の相安定性と材料開発2013

    • Author(s)
      石田清仁
    • Organizer
      日本金属学会2013年(第152回)春期講演大会
    • Place of Presentation
      東京理科大学
    • Year and Date
      2013-03-28
    • Related Report
      2013 Final Research Report
  • [Presentation] Normal grain growth behavior in two- and three- dimensional modes of Cu-Al-Mn shape memory alloy2013

    • Author(s)
      T. Kusama, T. Omori, T. Saito, I. Ohnuma, K. Ishida, R. Kainuma
    • Organizer
      Joint Symposium on Materials Science and Engineering for the 21st Century
    • Place of Presentation
      National Tsing Hua Univ., Hsinchu, Taiwan
    • Related Report
      2013 Annual Research Report
  • [Presentation] Cu-Al-Mn 形状記憶合金における相変態を利用した異常粒成長

    • Author(s)
      草間知枝,川田紳悟,大森俊洋,大沼郁雄, 須藤祐司, 石田清仁, 貝沼亮介
    • Organizer
      日本金属学会2014年(第154回)春期講演大会
    • Place of Presentation
      東京都:東京工業大学
    • Related Report
      2013 Annual Research Report
  • [Presentation] Grain growth behavior of Cu-Al-Mn shape memory alloy with BCC structure

    • Author(s)
      Tomoe Kusama, Toshihiro Omori, Takashi Saito, Ikuo Ohnuma, Kiyohito Ishida, Ryosuke Kainuma
    • Organizer
      5th International Conference on Recrystallization & Grain Growth
    • Place of Presentation
      Sydney Australia: Nobotel Sydney Manly Pacific
    • Related Report
      2013 Annual Research Report
  • [Presentation] 合金の相安定性と材料開発

    • Author(s)
      石田 清仁
    • Organizer
      日本金属学会 2013年春期 (第152回) 講演大会
    • Place of Presentation
      東京理科大学 (東京・日本)
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] Grain Growth Behavior of Cu-Al-Mn Shape Memory Alloy with BCC Structure

    • Author(s)
      T. Kusama, T. Omori, T. Saito, I. Ohnuma, K. Ishida, R. Kainuma
    • Organizer
      REX & GG 2013 conference
    • Place of Presentation
      Novotel Sydney Manly Pacific (Sydney・Australia)
    • Related Report
      2012 Research-status Report
  • [Remarks] 東北大学大学院工学研究科・工学部 マテリアル・開発系 創形創質プロセス学講座 計算材料構成学分野

    • URL

      http://www.material.tohoku.ac.jp/labs/metal03.html

    • Related Report
      2012 Research-status Report
  • [Patent(Industrial Property Rights)] 安定した超弾性を示すCu-Al-Mn 系棒材及び板材、その製造方法、それを用いた制震部材、並びに制震部材を用いた制震構造体2013

    • Inventor(s)
      大森俊洋、草間知枝、貝沼亮介、石田清仁、田中豊延、喜瀬純男、中溝賢治、石川浩司、中野美里、勅使河原 聡
    • Industrial Property Rights Holder
      株式会社古河テクノマテリアル、国立大学法人東北大学、古河電気工業株式会社
    • Industrial Property Rights Type
      特許
    • Filing Date
      2013-05-10
    • Related Report
      2013 Final Research Report
  • [Patent(Industrial Property Rights)] 安定した超弾性を示すCu-Al-Mn系棒材及び板材、その製造方法、それを用いた制震部材、並びに制震部材を用いた制震構造体2013

    • Inventor(s)
      大森俊洋、川田紳悟、貝沼亮介、石田清仁、田中豊延、他6名
    • Industrial Property Rights Holder
      国立大学法人東北大学、㈱古河テクノマテリアル、古河電気工業㈱
    • Industrial Property Rights Type
      特許
    • Filing Date
      2013-05-10
    • Related Report
      2013 Annual Research Report

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Published: 2013-05-31   Modified: 2019-07-29  

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