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Development of novel Co-based reentrant shape memory alloys showing anomalous martensitic transformation

Research Project

Project/Area Number 19H02412
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 26010:Metallic material properties-related
Research InstitutionTohoku University

Principal Investigator

XU XIAO  東北大学, 工学研究科, 助教 (20781389)

Co-Investigator(Kenkyū-buntansha) 辻川 雅人  東北大学, 電気通信研究所, 助教 (40615019)
大森 俊洋  東北大学, 工学研究科, 准教授 (60451530)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2021: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2020: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
Fiscal Year 2019: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords形状記憶合金 / リエントラント・マルテンサイト変態 / Co系合金
Outline of Research at the Start

一般に、マルテンサイト(M)変態は冷却時に母相→M相の正変態が生じるが、最近、代表者らは、Co2Cr(Ga,Si)形状記憶合金において冷却で母相→M相→母相の挙動を示すM変態を報告し、リエントラント形状記憶合金と命名した。リエントラント形状記憶合金は学術面だけではなく実用面も大きく期待されているが、現在のところ1合金しか見つかっていない。本研究は第一原理計算と実験を併用した研究手法を駆使し、新規リエントラント形状記憶合金の開発を目指す。

Outline of Final Research Achievements

Conventional martensitic transformation occurs as a parent-to-martensite transformation during the cooling process. Recently, we developed a new Co2Cr(Ga,Si) alloy system, where a unique parent-martensite-parent reentrant martensitic transformation occurs; shape memory alloys showing this unique behavior were named as reentrant shape memory alloys. In this study, we focused on the development of new shape memory alloys, and new systems such as Co-V-Al and Co-V-Al-Si were successfully developed. Moreover, by using the reentrant shape memory alloys, we found the elastocaloric switching effect for the first time in the world. This achievement is considered as a solid progress for the realization of the upcoming solid-state refrigeration technique in the near future.

Academic Significance and Societal Importance of the Research Achievements

本研究はまず新規Co系形状記憶合金の開発を目的とした。Co系合金は独特の電子構造から形状記憶合金にはなりにくいとされてきたが、本研究で新規形状記憶合金の開発に成功したことで学術的に大きな意味を持つと言える。また、Co-V-AlとCo-V-Si-Al合金はいずれもGaなど高価な元素を含まないため、実用上の意味も大きい。さらに、Co-Cr-Al-Si合金において、周囲の温度で冷暖切換する固体冷媒材料の開発に成功した。こちらは新しい物理現象であると同時に、装置設計に新たな自由度が生まれることから、次世代固体冷凍技術の実現にも貢献できると期待され、学術的にも社会的にも大きな意義を持つ研究成果である。

Report

(4 results)
  • 2022 Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (30 results)

All 2022 2021 2020 2019 Other

All Journal Article (8 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (18 results) (of which Int'l Joint Research: 7 results,  Invited: 3 results) Remarks (2 results) Patent(Industrial Property Rights) (2 results) (of which Overseas: 1 results)

  • [Journal Article] Co系ホイスラー合金の新規弾性熱量効果2021

    • Author(s)
      許 皛, 大平拓実, 許 勝, 大森俊洋, 貝沼亮介
    • Journal Title

      まぐね

      Volume: 16 Pages: 239-245

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Martensitic Transformation and Metamagnetic Transition in Co-V-(Si, Al) Heusler Alloys2021

    • Author(s)
      Nakamura Kousuke、Miyake Atsushi、Xu Xiao、Omori Toshihiro、Tokunaga Masashi、Kainuma Ryosuke
    • Journal Title

      Metals

      Volume: 11 Issue: 2 Pages: 226-226

    • DOI

      10.3390/met11020226

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Elastocaloric switching effect induced by reentrant martensitic transformation2020

    • Author(s)
      Odaira Takumi、Xu Sheng、Xu Xiao、Omori Toshihiro、Kainuma Ryosuke
    • Journal Title

      Applied Physics Reviews

      Volume: 7 Issue: 3 Pages: 031406-031406

    • DOI

      10.1063/5.0007753

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Phase stability and magnetic properties in Co2Cr(Al,Si) shape memory alloys2020

    • Author(s)
      Hirata Kenji、Xu Xiao、Omori Toshihiro、Kainuma Ryosuke
    • Journal Title

      Journal of Magnetism and Magnetic Materials

      Volume: 500 Pages: 166311-166311

    • DOI

      10.1016/j.jmmm.2019.166311

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Investigation of the Itinerant Electron Ferromagnetism of Ni2+xMnGa1-x and Co2VGa Heusler Alloys2019

    • Author(s)
      T.Sakon, Y.Hayashi, A.Fukuya, D. Li, F.Honda, R. Y. Umetsu, X. Xu, G.Oomi, T.Kanomata, T.Eto
    • Journal Title

      Materials

      Volume: 12 Issue: 4 Pages: 1-12

    • DOI

      10.3390/ma12040575

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Magnetic phase diagrams in Co2Cr(Ga,Si) alloys with reentrant martensitic transformation behavior2019

    • Author(s)
      Xiao Xu,Takumi Kihara,Atsushi Miyake,Masashi Tokunaga,Toshihiro Omori,Takeshi Kanomata,Ryosuke Kainuma
    • Journal Title

      The 6th International Conference on Ferromagnetic Shape Memory Alloys

      Volume: 1 Pages: 60-61

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Superelastic properties at cryogenic temperatures in Co-Cr-Al-Si shape memory alloys2019

    • Author(s)
      Takumi Odaira,Xiao Xu,Toshihiro Omori,Ryosuke Kainuma
    • Journal Title

      The 6th International Conference on Ferromagnetic Shape Memory Alloys

      Volume: 1 Pages: 164-165

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Martensitic transformation and shape memory effects in Co-V-Al alloys at high temperatures2019

    • Author(s)
      Jiang Hengxing,Yang Shuiyuan,Wang Cuiping,Zhang Yanqing,Xu Xiao,Chen Yuechao,Omori Toshihiro,Kainuma Ryosuke,Liu Xingjun
    • Journal Title

      JOURNAL OF ALLOYS AND COMPOUNDS

      Volume: 786 Pages: 648-654

    • DOI

      10.1016/j.jallcom.2019.01.216

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 形状記憶・超弾性合金の基礎と最近の研究2021

    • Author(s)
      許皛
    • Organizer
      第1回 ASMA Webセミナー
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Co-Cr-Ga-Si 合金のリエントラント・マルテンサイト変態と相平衡調査2021

    • Author(s)
      村上諒, 許皛, 大森俊洋, 貝沼亮介
    • Organizer
      日本金属学会2021年秋期(第169回)講演大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Martensitic Transformation and Magnetic Properties of Co64V15(Si21-xAlx) Alloys2021

    • Author(s)
      Kousuke Nakamura, Atsushi Miyake, Xiao Xu, Toshihiro Omori, Masashi Tokunaga, Ryosuke Kainuma
    • Organizer
      16th International Conference on Martensitic Transformation
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Abnormal Behavior in Elastocaloric Effect at Low Temperatures in Co-Cr-Al-Si Alloys2021

    • Author(s)
      Takumi Odaira, Sheng Xu, Xiao Xu, Toshihiro Omori, Ryosuke Kainuma
    • Organizer
      16th International Conference on Martensitic Transformation
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] マルテンサイト変態を示すCo-V-Gaホイスラー合金の熱力学的調査2021

    • Author(s)
      許 皛, 三宅 厚志, 木原 工, 浜本 悠吾, 長嶋 顕秀, 長迫 実, 大森 俊洋, 徳永 将史, 鹿又 武, 貝沼 亮介
    • Organizer
      (公社)日本金属学会2020年秋期(第167回)講演大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Co-Cr-Ga-Si合金のリエントラントマルテンサイト変態と超弾性効果2021

    • Author(s)
      村上諒, 許皛, 貝沼亮介
    • Organizer
      (一社)形状記憶合金協会講演会・ポスター発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Co64V15(Si21-xAlx)合金のマルテンサイト変態と磁気特性2020

    • Author(s)
      中村 浩輔, 三宅 厚志, 許 皛, 大森 俊洋, 徳永 将史, 貝沼 亮介
    • Organizer
      (公社)日本金属学会2020年秋期(第167回)講演大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Co-based Heusler alloys with reentrant martensitic transformation behavior: Fundamentals and application possibilities2020

    • Author(s)
      X.Xu,T. Kanomata,R. Kainuma
    • Organizer
      TMS(The Minerals, Metals & Materials Society) 149th Annual Meeting, San Diego
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Co-V-Ga ホイスラー合金のマルテンサイト変態とメタ磁性相転移2020

    • Author(s)
      許皛,三宅厚志,木原工,浜本悠吾,長嶋顕秀,長迫実,大森俊洋,徳永将史,鹿又武,貝沼 亮介
    • Organizer
      (公社)日本金属学会2020年春期(第166回)講演大会,東京工業大学
    • Related Report
      2019 Annual Research Report
  • [Presentation] Co-Cr-Al-Si合金の低温における特異な弾性熱量効果2020

    • Author(s)
      大平拓実,許勝,許皛,大森俊洋,貝沼亮介
    • Organizer
      (公社)日本金属学会2020年春期(第166回)講演大会,東京工業大学
    • Related Report
      2019 Annual Research Report
  • [Presentation] Co64V15(Si21-xAlx)合金のマルテンサイト変態と磁気特性2019

    • Author(s)
      中村浩輔,許皛,大森俊洋,貝沼亮介
    • Organizer
      第18回日本金属学会東北支部研究発表大会「21世紀を支える構造材料」, 仙台高等専門学校名取キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] Co-Cr-Al-Si合金の極低温における超弾性特性2019

    • Author(s)
      大平拓実,許勝,許皛,大森俊洋,貝沼亮介
    • Organizer
      第18回日本金属学会東北支部研究発表大会「21世紀を支える構造材料」, 仙台高等専門学校名取キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] Co-Cr-Al-Si合金の極低温における超弾性特性2019

    • Author(s)
      大平拓実,許勝,許皛,大森俊洋,貝沼亮介
    • Organizer
      (一社)形状記憶合金協会第12回SMAシンポジウム2019in熊本
    • Related Report
      2019 Annual Research Report
  • [Presentation] Reentrant martensitic transformation and its application possibilities in CoCr-based Heusler alloys2019

    • Author(s)
      Xiao Xu
    • Organizer
      The Future of Materials Engineering - Dramatic Innovation to the next 100 years
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Superelasitic properties at cryogenic temperatures in Co‐Cr‐Al‐Si shape memory alloys2019

    • Author(s)
      T. Odaira,X. Xu,T. Omori,R. Kainuma
    • Organizer
      ICFSMA 2019 (International Conference on Ferromagnetic Shape Memory Alloys)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Magnetic Phase Diagrams in Co2Cr(Ga,Si) Alloys with Reentrant Martensitic Transformation Behavior2019

    • Author(s)
      X. Xu,T. Kihara,A. Miyake,M. Tokunaga,T. Omori,T. Kanomata,R. Kainuma
    • Organizer
      ICFSMA 2019 (International Conference on Ferromagnetic Shape Memory Alloys)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Reentrant Martensitic Transformation and Related Phenomena in Heusler-type Co2Cr (Ga,Si) alloys2019

    • Author(s)
      X. Xu,T. Kanomata,R. Kainuma
    • Organizer
      The 2nd Symposium for World Leading Research Centers -Materials Science and Spintronics- 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Co2Cr(Ga,Si)系ホイスラー合金のマルテンサイト相における低温物性異常2019

    • Author(s)
      許皛,貝沼亮介,鹿又武
    • Organizer
      日本金属学会2019年春期(第164回)講演大会
    • Related Report
      2019 Annual Research Report
  • [Remarks] 周囲の温度で冷暖切換する固体冷媒材料を開発 -固体冷凍技術における新発見-

    • URL

      https://www.tohoku.ac.jp/japanese/2020/08/press20200820-04-cool.html

    • Related Report
      2020 Annual Research Report
  • [Remarks] Exploring the elastocaloric switching effect...

    • URL

      https://aip.scitation.org/doi/10.1063/10.0001793

    • Related Report
      2020 Annual Research Report
  • [Patent(Industrial Property Rights)] Co基超弾性合金材、Co基超弾性合金材からなる板材及び線材、Co基超弾性合金材の製造方法、ステント、ガイドワイヤならびに人工股関節2022

    • Inventor(s)
      貝沼亮介、大森俊洋、許キョウ、大平拓実
    • Industrial Property Rights Holder
      貝沼亮介、大森俊洋、許キョウ、大平拓実
    • Industrial Property Rights Type
      特許
    • Filing Date
      2022
    • Related Report
      2021 Annual Research Report
    • Overseas
  • [Patent(Industrial Property Rights)] Co基超弾性合金材、Co基超弾性合金材からなる板材及び線材、ならびにCo基超弾性合金材の製造方法2021

    • Inventor(s)
      貝沼亮介、大森俊洋、許キョウ、大平拓実
    • Industrial Property Rights Holder
      貝沼亮介、大森俊洋、許キョウ、大平拓実
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2021-104095
    • Filing Date
      2021
    • Related Report
      2021 Annual Research Report

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Published: 2019-04-18   Modified: 2024-01-30  

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