Stress-induced transformations at low temperatures in a Ni45Co5Mn36In14 metamagnetic shape memory alloy

被引：31
|
作者：
Niitsu, K. [1 ]
Xu, X. [1 ]
Umetsu, R. Y. [2 ]
Kainuma, R. [1 ]
机构：
[1] Tohoku Univ, Grad Sch Engn, Dept Mat Sci, Sendai, Miyagi 9808579, Japan
[2] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
来源：
APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 24期
关键词：
FIELD-INDUCED STRAIN; MAGNETIC-FIELD; MARTENSITIC-TRANSFORMATION; PHASE-TRANSFORMATION; KINETIC ARREST; MAGNETORESISTANCE; NI50MN34IN16; FLOW;
D O I：
10.1063/1.4840336
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The martensitic transformation behavior in a Ni45Co5Mn36In14 was investigated at low temperatures. Almost perfect superelasticity was confirmed below 200 K. The reverse transformation finishing stress monotonically decreased with decreasing temperature and the forward transformation starting stress changed from a decrease to an increase at similar to 125K. The temperature dependence of equilibrium stress had the same tendency as that of equilibrium magnetic field, allowing the thermal transformation arrest temperature to be determined. The temperature dependence of hysteresis in stress-induced transformation was also similar to that in magnetic-field-induced transformation, and the levels of dissipation energy yielded by the stress and magnetic field were intrinsically equivalent. (C) 2013 AIP Publishing LLC.
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页数：4
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