Martensitic transformation behavior under magnetic field in Co-Ni-Al ferromagnetic shape memory alloys

Y. Sutou, R. Kainuma, K. Ishida, M. Taya

研究成果: Conference article査読

7 被引用数 (Scopus)

抄録

Effect of the magnetic field on the martensitic transformation of Co-Ni-Al single-crystal was investigated by differential thermal analysis (DTA) and the in-situ microstructure observation under magnetic field. The martensitic transformation temperatures Ms and Mf of the Co 34.5Ni35.5Al30 (at.%) single-crystal specimen showing the martensitic transformation from the paramagnetic austenite (B2) to the ferromagnetic martensite (L10) slightly increased under the magnetic field and those temperatures shifts were about 1.3 °C at 1.0 T. It was also observed in the Co34.5Ni35.5Al30 single-crystal specimen that the phase boundaries between the austenite and the martensite slightly move by applying the magnetic field of 1.0 T. These results are discussed on the basis of a thermodynamic stability of the martensite phase under the magnetic field. The martensitic and the magnetic transformation behaviors of the Ni-Al-Co alloys are also reviewed.

本文言語English
ページ(範囲)159-168
ページ数10
ジャーナルProceedings of SPIE - The International Society for Optical Engineering
5053
DOI
出版ステータスPublished - 2003 11 27
イベントPROCEEDINGS OF SPIE SPIE - The International Society for Optical Engineering: Smart Structures and Materials 2003 Active Materials: Behavior and Mechanics - San Diego, CA, United States
継続期間: 2003 3 32003 3 6

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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