Effects of Cu on the martensitic transformation and magnetic properties of Mn50Ni40In10 alloy

The structures, the martensitic transformations, and the magnetic properties are studied systematically in Mn50Ni40-xCuxIn10, Mn50-xCuxNi40In10, and Mn50Ni40In10-xCux alloys. The partial substitution of Ni by Cu reduces the martensitic transformation temperature, but has little influence on the Curi...

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Bibliographic Details
Published in:中国物理B：英文版 2013-12 (12), p.364-369
Main Author: 李歌天 柳祝红 孟凡研 马星桥 吴光恒
Format: Article
Language:English
Subjects:
合金系统
奥氏体相
奥氏体转变
居里温度
性能影响
温度上升
转变温度
马氏体相变
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Summary:The structures, the martensitic transformations, and the magnetic properties are studied systematically in Mn50Ni40-xCuxIn10, Mn50-xCuxNi40In10, and Mn50Ni40In10-xCux alloys. The partial substitution of Ni by Cu reduces the martensitic transformation temperature, but has little influence on the Curie temperature of austenite. Comparatively, the martensitic transformation temperature increases and the Curie temperature of austenite decreases with the partial replacement of Mn or In by Cu. The magnetization difference between the austenite phase and the martensite phase reaches 70 emu/g in Mn50Ni39Cu1In10; a field-induced martensite-to-austenite transition is observed in this alloy.
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/22/12/126201