Effect of iron and cobalt addition on magnetic and shape memory properties of Ni2MnGa sputtered films

被引:20
作者
Ohtsuka, Makoto [1 ]
Matsumoto, Minoru [1 ]
Itagaki, Kimio [1 ]
机构
[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, Sendai, Miyagi 9808577, Japan
来源
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2006年 / 438卷
基金
日本学术振兴会;
关键词
nickel-manganese-gallium; ferromagnetic shape memory alloy; sputtered film; magnetic property; shape memory effect;
D O I
10.1016/j.msea.2006.02.153
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The effect of iron and cobalt addition on the magnetic and shape memory properties of Ni2MnGa sputtered films was investigated. It was found that heat-treated films with more than 5.1 mol% Co have two phases. Martensitic transformation temperatures of the constraint-aged films decreased with the iron addition and increased with increasing cobalt content. The Curie temperature of the heat-treated films increased with increasing amount of iron or cobalt. The constraint-aged films containing iron and cobalt exhibited a two-way shape memory effect by heating and cooling. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:935 / 939
页数:5
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