Magnetic and Martensitic Phase Transformations in a Ni54Ga27Fe19 Alloy
Magnetic and Martensitic Phase Transformations in a Ni54Ga27Fe19 Alloy
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DOI：
10.2320/matertrans.43.2360
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发表时间：
2002-09
影响因子：
1.2
通讯作者：
K. Oikawa;T. Ota;Y. Sutou;T. Ohmori;R. Kainuma;K. Ishida
中科院分区：
文献类型：
--
作者：
K. Oikawa;T. Ota;Y. Sutou;T. Ohmori;R. Kainuma;K. Ishida
通过差示扫描量热法和X射线粉末衍射以及振动样品磁力计研究了Ni 54 Ga 27 Fe 19 合金的马氏体和磁转变。该合金从L2 1 马氏体转变为具有14M（7R）结构的马氏体相。在 M s (= 293 K) 和 M f (= 274 K) 之间的温度区间内，铁磁转变还伴随着从顺磁母相到铁磁马氏体相的马氏体转变。 Ni-Ga-Fe系作为铁磁形状记忆合金很有前景。
The martensitic and magnetic transitions of Ni 54 Ga 27 Fe 19 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 L2 1 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.