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Control of martensite variants by magnetic field and giant magnetic field-induced strain in Fe-Pd ferromagnetic shape memory alloys

Research Project

Project/Area Number 15560608
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

FUKUDA Takashi  Osaka University, Department of materials Science and Engineering, Graduate school of Engineering, Associate Professor, 大学院・工学研究科, 講師 (50228912)

Co-Investigator(Kenkyū-buntansha) KAKESHITA Tomoyuki  Osaka University, Department of materials Science and Engineering, Graduate school of Engineering, Professor, 大学院・工学研究科, 教授 (90127209)
Project Period (FY) 2003 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2004: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2003: ¥2,300,000 (Direct Cost: ¥2,300,000)
Keywordsmartensitic transformation / shape memory alloys / magnetocrystalline anisotropy / magnetostriction / twinning deformation / shear stress / magnetization curve / single crystal / 磁気モーメント
Research Abstract

Recently, ferromagnetic shape memory alloys have attracted considerable attention because some of them show a giant magnetic field-induced strain of several percent in association with rearrangement of martensite variants. Until now, we have reported that Fe-31.2(at%)Pd alloy exhibits a giant strain of about 3% by the application of magnetic field. Since the giant field-induced strain can be obtained only in the FCT martensite state, it is very important to raise the martensitic transformation temperature. In this study, we first investigated the effect of third elements on the FCT martensitic transformation temperature. As a result, we found that when the FCT transformation temperature is increased, the BCT transformation temperature also increases. The BCT martensite is not suitable for the magnetic field-induced strain and the transformation should be avoided for obtaining good properties. Then, we investigated the most suitable composition at which the FCT transformation temperatur … More e is highest in the Fe-Pd binary system. As a result we found that when Pd content is lower than 30at%, BCT martensite appear in addition to FCT martensite, and the single FCT phase condition is obtained for alloys with Pd content of 30at% and more. We tried to grow a single crystal of Fe-30at% Pd alloy, and found that the composition of specimen varies largely because of a large difference between solidus and liquidus lines at this composition. In order to reduce the segregation introduced during the growing process, we kept the specimen at a temperature just below the melting point for several days, and we succeeded to obtain a homogeneous single crystal whose FCT transformation temperature is close to the room temperature. By using this single crystal, we confirmed that the rearrangement of martensite variants occurs by the application of magnetic field. Furthermore, we measured magnetocrystalline anisotropy constant and twinning stress of an Fe-31.2Pd alloy in a wide temperature range. Using these results, we explained the mechanism of magnetic field-induced strain in ferromagnetic shape memory alloys. Less

Report

(3 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • Research Products

    (18 results)

All 2005 2004 2003 Other

All Journal Article (12 results) Publications (6 results)

  • [Journal Article] Magnetic Field-Induced Strain of Martensite and Parent Phases in a Ferromagnetic Shape Memory Iron-Palladium Alloy2005

    • Author(s)
      T.Kakeshita, T.Fukuda, T.Sakamoto
    • Journal Title

      Materials Science Forum 475-479

      Pages: 1999-2004

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Magnetic field induced stain of martensite and parent phase in a ferromagnetic shape memory alloy2005

    • Author(s)
      T.Kakeshita, T.Fukuda, T.Sakamoto
    • Journal Title

      Materials Science Forum 475-479

      Pages: 1999-2004

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Magnetic Field-Induced Strain of Martensite and Parent Phases in a Ferromagnetic Shape Memory Iron-Palladium Alloy2005

    • Author(s)
      T.Kakeshita, T.Fukuda T.Sakamoto
    • Journal Title

      Materials Science Forum 475-479

      Pages: 1999-2004

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Control of microstructure by magnetic field in iron-based ferromagnetic shape memory alloys2004

    • Author(s)
      T.Kakeshita, T.Fukuda
    • Journal Title

      J.Phys.Condensed Matter 16

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Magnetization Process Associated with Rearrangement of Martensite Variants in Iron-Based Ferromagnetic Shape Memory Alloys2004

    • Author(s)
      T.Fukuda, T.Sakamoto, T.Terai, T.Kakeshita, K.Kishio
    • Journal Title

      Materials Research Society Symposium Proceedings 785

      Pages: 421-426

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Rearrangement of martensite variants in iron-based ferromagnetic shape memory alloys under magnetic field2004

    • Author(s)
      T.Fukuda, T.Sakamoto, T.Kakeshita, T.Takeuchi, K.Kisho
    • Journal Title

      Materials Transactions 45

      Pages: 188-192

    • NAID

      10012642867

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Control of microstructure by magnetic field in iron based ferromagnetic shape memory alloys2004

    • Author(s)
      T.Kakeshita, T.Fukuda
    • Journal Title

      J.Phys.Condensed Matter 16

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Magnetization process associated with rearrangement of martensite variants in iron based ferromagnetic shape memory alloys2004

    • Author(s)
      T.Fukuda, T.Sakamoto, T.Terai, T.Kakeshita, K.Kishio
    • Journal Title

      Materials Research Society Symposium Proceedings 785

      Pages: 421-426

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Rearrangement of martensite variants in iron based ferromagnetic shape memory alloys under magnetic field2004

    • Author(s)
      T.Fukuda, T.Sakamoto, T.Kakeshita, T.Takeuchi, K.Kisho
    • Journal Title

      Materials Transactions 45

      Pages: 188-192

    • NAID

      10012642867

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Influence of magnetic field direction on rearrangement of martensite variants in an Fe-Pd alloy2003

    • Author(s)
      T.Sakamoto, T.Fukuda, T.Kakeshita, T.Takeuchi, K.Kishio
    • Journal Title

      Materials Transactions 44

      Pages: 2495-2498

    • NAID

      10011817562

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] 鉄基強磁性形状記憶合金における磁場によるマルテンサイトバリアントの再配列と巨大歪2003

    • Author(s)
      福田隆, 掛下知行
    • Journal Title

      熱処理 43

      Pages: 137-142

    • NAID

      10011628961

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Influence of magnetic field direction on rearrangement of martensite variants in an Fe-Pd alloy2003

    • Author(s)
      T.Sakamoto, T.Fukuda, T.Kakeshita, K.Kisho
    • Journal Title

      Materials Transactions 44

      Pages: 2495-2498

    • NAID

      10011817562

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Publications] 福田隆, 掛下知行: "鉄基強磁性形状記憶合金における磁場によるマルテンサイトバリアントの再配列と巨大歪"熱処理. 43・3. 137-142 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] T.Sakamoto, T.Fukuda, T.Kakeshita, T.Takeuchi, K.Kishio: "Influence of magnetic field direction on rearrangement of variants in an Fe-Pd alloy"Materials Transactions. 44・12. 2495-2498 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] T.Kakeshita, T.Fukuda, T.Terai, T.Takeuchi, K.Kishio: "Martensitic transformation in Fe-based shape memory alloys under magnetic field"J.Phys IV France. 112. 93-100 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] T.Fukuda, T.Sakamoto, T.Terai, T.Kakeshita, K.Kishio: "Stability of B2-type structure and martensitic transformation in Ti-Ni shape memory alloys"J.Phys IV France. 112. 685-688 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] T.Fukuda, T.Inoue, T.Kakeshita, T Takeuchi, K.Kishio: "Crystallographic orientation dependence of magnetic field-induced strain in an Fe-31.3Pd alloy"Transactions of Materials Research Society of Japan. 28・2. 249-250 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] T.Sakamoto, T.Fukuda, T.Kakeshita, T.Takeuchi, K.Kishio: "Magnetic field-induced strain in iron-based ferromagnetic shape memory alloys"J.Appl.Phys. 93. 8647-8649 (2003)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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