Effect of aging on transformation characteristics of Cu-Al-Ni shape memory alloys

被引：0
|
作者：
Suresh, N [1 ]
Ramarnurty, U [1 ]
机构：
[1] Indian Inst Sci, Dept Met, Bangalore 560012, Karnataka, India
来源：
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2006年 / 59卷 / 01期
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D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The aging response of Cu-Al-Ni single crystal shape memory alloys in the beta(austenite)-phase has been investigated. Two alloys, one in the martensitic condition (alloy M) and the other in the austenitic condition (alloy A) in the as-grown state at room temperature, were considered. Alloys were aged at three different temperatures (473, 523 and 573 K) in the beta-phase for the time intervals ranging from 10 min to 24 h. Differential scanning calorimetry (DSC) and microscopy results show successive martensitic transitions (beta(1)' --> gamma(1)') in both the alloys and precipitate formation (gamma(2)) in the alloy A leading to an increase in the transformation temperatures and transformation hysteresis, with aging.
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页码：39 / 45
页数：7
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