Antiferromagnetic transition and martensite transformation in Mn-Ni alloys

被引：0
|
作者：
Peng, WY [1 ]
Deng, HM [1 ]
Zhang, JH [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200030, Peoples R China
来源：
ACTA METALLURGICA SINICA | 2003年 / 39卷 / 11期
关键词：
twin; transformation coupling; high damping; Mn-Ni alloy;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
By dynamic mechanical analyzer (DMA.), resistance method and transmission electron microscope (TEM), the relationships of the internal friction and moduli of Mn-Ni alloys with temperature were measured, M-s and t(n) were confirmed and the microstructure was observed. Compared with Mn-Cu alloy, the coupling mechanism was investigated and the effect of antiferromagnetic transition and martensite transformation on the twin formation was analyzed. The results show that a high damping capacity can be formed through the overlap between the twin peak and martensite transformation peak or the twin formed with antiferromagnetic transition in Mn-Ni alloys; otherwise, the formation of coupling is related not only on distortion degree of strain release but also on the difference between M-s and t(n).
引用
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页码：1153 / 1156
页数：4
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