A new ferromagnetic shape memory alloy system
A new ferromagnetic shape memory alloy system
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DOI：
10.1016/s1359-6462(01)00939-3
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发表时间：
2001-05
影响因子：
6
通讯作者：
M. Wuttig;J. Li;C. Crăciunescu
中科院分区：
文献类型：
--
作者：
M. Wuttig;J. Li;C. Crăciunescu
结果表明，Co2Ni1−xGa1+x、x = 0.06、0.09、0.12、0.15为铁磁形状记忆合金。在凝固状态下，随着浓度参数x的减小，马氏体起始温度在20℃<T<60℃范围内变化。高温相和低温相分别为体心立方相、正交相和/或单斜相。相变迟滞，即马氏体和奥氏体的起始温度之差约为30度。合金的饱和磁化强度与镍相似，矫顽力约为100mT。
It is shown that the alloys Co2Ni1−xGa1+x, x = 0.06, 0.09, 0.12, 0.15, are ferromagnetic shape memory alloys. In the as-solidified state their martensite start temperatures vary in the range 20 °C<T<60 °C as the concentration parameter x decreases. The high and low temperature phases are body centered cubic and orthorhombic and/or monoclinic, respectively, The transformation hysteresis, i.e. the difference between the martensite and austenite start temperatures, equals approximately 30 degrees. The saturation magnetization of the alloys resembles that of nickel while their coercive force is of the order of 100mT.