Phase equilibria and phase transformation in new B2-type ferromagnetic shape memory alloys of Co–Ni–Ga and Co–Ni–Al systems

DOI Web Site Web Site 被引用文献28件 参考文献26件
  • Oikawa Katsunari
    National Institute of Advanced Industrial Science and Technology, Tohoku Center
  • Ota Takuya
    Department of Materials Science, Graduate School of Engineering, Tohoku University
  • Gejima Fumihiko
    Department of Materials Science, Graduate School of Engineering, Tohoku University
  • Ohmori Toshihiro
    Department of Materials Science, Graduate School of Engineering, Tohoku University
  • Kainuma Ryosuke
    Department of Materials Science, Graduate School of Engineering, Tohoku University
  • Ishida Kiyohito
    Department of Materials Science, Graduate School of Engineering, Tohoku University

書誌事項

タイトル別名
  • Phase Equilibria and Phase Transformations in New B2-type Ferromagnetic Shape Memory Alloys of Co-Ni-Ga and Co-Ni-Al Systems

この論文をさがす

抄録

The phase equilibria, the martensitic and magnetic phase transformations in the β (B2) phase region of the Co–Ni–Ga and Co–Ni–Al systems have been investigated. It is shown that some compositions in the range Co–(15–30)at%Ni–30 at%Ga and Co–(30–40)at%Ni–30 at%Al exhibit both the β to β′ (L10) thermoelastic martensitic transformation and the para/ferromagnetic transition. Some of these undergo the martensitic transformation from the paramagnetic β to the ferromagnetic β′. The introduction of a small amount of the γ phase into the β phase by heat treatment, based on the results of the β⁄γ phase equilibria study in these systems, is shown to significantly improve the ductility in both alloy systems. The new β single phase and β+γ two-phase ferromagnetic shape memory alloys (FSMAs) of the Co–Ni–Ga and Co–Ni–Al systems hold great promise as new smart materials.

収録刊行物

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 42 (11), 2472-2475, 2001

    公益社団法人 日本金属学会

被引用文献 (28)*注記

もっと見る

参考文献 (26)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ