Martensitic transformation and magnetic properties of Ni-base Heusler alloys

被引：0
|
作者：
Tsuchiya, K [1 ]
Ohashi, A [1 ]
Umemoto, M [1 ]
机构：
[1] Toyohashi Univ Technol, Dept Prod Syst Engn, Toyohashi, Aichi 4418580, Japan
来源：
JAPAN INSTITUTE OF METALS, PROCEEDINGS, VOL 12, (JIMIC-3), PTS 1 AND 2: SOLID - SOLID PHASE TRANSFORMATIONS | 1999年
关键词：
shape memory alloys; magnetostriction; ferromagnetism; twining; Ni-Mn-Ga;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The martensitic transformation behavior and magnetic properties were investigated for the ferromagnetic shape memory alloys of Ni-16.7 similar to 23.5 at%Mn-25.0 at%Ga. X-ray diffraction revealed that the structure of martensite phase changes from monoclinic (10M or 14M) to those reported by Martynov with the composition approaching to the stoichiometric Heusler composition. Martensitic transformation temperature decreases with the Mn concentration. TEM observations revealed that the intervariant boundaries in monoclinic martensites are very often serrated. Saturation magnetization increases monotonously with Mn concentration in both parent phase and martensite state.
引用
收藏
页码：1108 / 1111
页数：4
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