Influence of Co addition on martensitic and magnetic transitions in Ni-Fe-Ga β based shape memory alloys
Influence of Co addition on martensitic and magnetic transitions in Ni-Fe-Ga β based shape memory alloys
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DOI：
10.2320/matertrans.46.734
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发表时间：
2005-03
影响因子：
1.2
通讯作者：
K. Oikawa;Y. Imano;V. Chernenko;F. Luo;T. Omori;Y. Sutou;R. Kainuma;T. Kanomata;K. Ishida
中科院分区：
文献类型：
--
作者：
K. Oikawa;Y. Imano;V. Chernenko;F. Luo;T. Omori;Y. Sutou;R. Kainuma;T. Kanomata;K. Ishida
研究了Co对Ni-Fe-Ga β合金马氏体相变和磁性能的影响。随着Co含量的增加，Ni 51 Fe 22-XCoXGa 27系列合金的居里温度Tc和马氏体转变开始温度Ms均升高，饱和磁化强度Is降低。而在Ni 54-XFe 19 Co XGa 27系列合金中，随着Co含量的增加，Tc和Is均增大，Ms减小。Tc和Is表现出强烈的依赖于平均磁价数Zm。因此，Co是控制马氏体和磁性转变温度的有效元素。
The effect of Co addition on the martensitic transition and magnetic properties of the Ni-Fe-Ga β alloys is investigated. The values of both the Curie temperature T c and martenaitic transition starting temperature M s increase, while the saturation magnetization I s decreases with increasing Co content in the series of Ni 5 1 Fe 2 2 - X Co X Ga 2 7 alloys. On the other hand, the values of both T c and I s increase and M s decrease with increasing Co content in the series of Ni 5 4 - X Fe 1 9 Co X Ga 2 7 alloys. T c and I s show a strong dependence on the average magnetic valence number Zm. Consequently, Co is an effective element to control both the martensitic and the magnetic transition temperatures.