Magnetic and Martensitic Phase Transformations in a Ni54Ga27Fe19 Alloy

Katsunari Oikawa; Takuya Ota; Yuji Sutou; Toshihiro Ohmori; Ryosuke Kainuma; Kiyohito Ishida

doi:10.2320/matertrans.43.2360

Magnetic and Martensitic Phase Transformations in a Ni₅₄Ga₂₇Fe₁₉ Alloy

Katsunari Oikawa, Takuya Ota, Yuji Sutou, Toshihiro Ohmori, Ryosuke Kainuma, Kiyohito Ishida

Author information

Keywords: ferromagnetic shape memory alloy, martensitic transformation, nickel-gallium-iron alloy, phase diagram

JOURNAL FREE ACCESS

2002 Volume 43 Issue 9 Pages 2360-2362

DOI https://doi.org/10.2320/matertrans.43.2360

Details

Abstract

The martensitic and magnetic transitions of Ni₅₄Ga₂₇Fe₁₉ alloy were investigated by differential scanning calorimetry and X-ray powder diffraction and with a vibrating sample magnetometer. The alloy is martensitically transformed from a L2₁ to a martensite phase with a 14M (7R) structure. The ferromagnetic transition is also accompanied by the martensitic transformation from a paramagnetic parent phase to a ferromagnetic martensite phase in the temperature interval between M_s (= 293 K) and M_f (= 274 K). The Ni–Ga–Fe system is promising as a ferromagnetic shape memory alloy.

Corresponding author

Register with J-STAGE for free!