Structural change due to martensite aging of CuZnAlMnNi shape memory alloy

被引：4
|
作者：
Bai, YJ [1 ]
Xu, XG
Liu, YX
Xiao, LM
Geng, GL
机构：
[1] Shanghai Univ Sci & Technol, Dept Mech, Shandong 250031, Peoples R China
[2] Shandong Univ, Inst Mat Sci & Engn, Shandong 250061, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2002年 / 334卷 / 1-2期
关键词：
martensite aging; CuZnAlMnNi shape memory alloy; alpha-phase; transmission electron microscopy;
D O I：
10.1016/S0921-5093(01)01761-0
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The microstructures of a CuZnAlMnNi shape memory alloy after one year aging in martensite phase were investigated by transmission electron microscopy. It was found that the substructure of stacking faults in the original martensite plates becomes indistinct, and the amount decreases. However, the equilibrium face centered cubic (fcc) alpha-phase can be observed forming at martensite plate boundaries or inside the plates. The structural variation during aging is responsible for the degradation of shape memory property and transformation temperatures when Cu-based SMA actuators are in use. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：49 / 52
页数：4
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