Aging-induced complex transformation behavior of martensite in Ni57.5Mn17.5Ga25 shape memory alloy

被引:31
作者
Khovailo, VV
Kainuma, R
Abe, T
Oikawa, K
Takagi, T
机构
[1] Natl Inst Adv Ind Sci & Technol, Tohoku Ctr, Miyagino Ku, Sendai, Miyagi 9838551, Japan
[2] Tohoku Univ, Grad Sch Engn, Dept Mat Sci, Sendai, Miyagi 9808579, Japan
[3] Tohoku Univ, Inst Fluid Sci, Sendai, Miyagi 9808577, Japan
基金
日本学术振兴会;
关键词
aging; differential scanning calorimetry; Heusler alloys; martensitic phase transformation;
D O I
10.1016/j.scriptamat.2004.03.025
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Ni57.5Mn17.5Ga25 shape memory alloy exhibits a complex transformation behavior, appearing after aging. Aging in the austenitic state resulted in an ordinary decrease of the martensitic transformation temperature. Contrary to this, aging in the martensitic state brought about unusual features of the martensitic transformation observed so far only in Ni-Ti alloys. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:13 / 17
页数:5
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