Phase transformation and magnetic properties of Ni–Mn–Ga–Ti ferromagnetic shape memory alloys
Phase transformation and magnetic properties of Ni–Mn–Ga–Ti ferromagnetic shape memory alloys
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DOI：
10.1016/j.jallcom.2010.04.157
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发表时间：
2010-10
影响因子：
6.2
通讯作者：
G. Dong;Z. Gao;C. Tan;J. Sui;W. Cai
中科院分区：
文献类型：
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作者：
G. Dong;Z. Gao;C. Tan;J. Sui;W. Cai
详细研究了Ti部分替代Ga对Ni53Mn23.5Ga23.5铁磁形状记忆合金马氏体转变温度、居里温度和磁化饱和度的影响。结果表明，Ti 在基体中的溶解度极限约为 8at.%。在钛含量为 0.5-8at.% 的样品中，马氏体转变温度显着升高，而当钛添加量超过 8at.% 时，马氏体转变温度降低。而低Ti含量时居里温度几乎保持不变，随后明显降低。马氏体相的磁化饱和度随着钛含量的增加而降低，因为它对有序原子排列敏感。
The influence of partial substitution of Ti for Ga on martensitic transformation temperatures, Curie temperature and magnetization saturation of Ni53Mn23.5Ga23.5ferromagnetic shape memory alloys were investigated in detail. The results show that solubility limits of Ti in the matrix is found to be about 8at.%. The martensitic transformation temperatures were increased markedly in samples with 0.5–8at.% titanium, and decreased with more than 8at.% titanium addition. While the Curie temperature almost remains unchanged at low-Ti content and subsequently decreases obviously. Magnetization saturation of martensitic phase decrease with the increasing titanium content since it is sensitive to ordered atomic arrangement.