Magnetic Field-Induced Martensitic Transformation of Fe-Co Particles in a Cu Matrix

Toshiyuki Fujii; Tomotsugu Kato; Takayuki Yamada; Masaharu Kato; Shigeki Nimori; Hideyuki Ohtsuka

doi:10.2320/matertrans.44.2545

Toshiyuki Fujii, Tomotsugu Kato, Takayuki Yamada, Masaharu Kato, Shigeki Nimori, Hideyuki Ohtsuka

著者情報

キーワード: copper-iron-cobalt alloy, single crystals, magnetic field-induced martensite, magnetic measurement, Néel temperature

ジャーナルフリー

2003 年 44 巻 12 号 p. 2545-2549

DOI https://doi.org/10.2320/matertrans.44.2545

詳細

抄録

The fcc-to-bcc martensitic transformation in Fe-Co precipitate particles has been induced by applying magnetic field to Cu-Fe-Co alloy single crystals at a range of temperature between 4 K and 300 K. The volume fractions of martensite can be estimated from the values of saturation magnetization of the bulk specimens. The amount of transformation is strongly dependent on the cooling temperature, and reaches its peak at around 77 K. The existence of the peak temperature is explained by considering the antiferromagnetic transformation of fcc Fe-Co.

責任著者(Corresponding author)

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