ARCHIVES OF METALLURGY AND MATERIALS
|
2004年
/
49卷
/
04期
关键词:
D O I:
暂无
中图分类号:
TF [冶金工业];
学科分类号:
0806 ;
摘要:
. A micro-mechanical model of stress-induced martensitic transformation in shape memory alloys is presented. A laminated microstructure of austenite and martensite phases is assumed along with a time-independent thermodynamic criterion for phase transformation. In numerical examples, the pseudoelastic behaviour of single crystals of CuZnAl and CuAlNi shape memory alloys is investigated. Several aspects are examined, including the effects of the loading direction, external constraints, detwinning, and instability of macroscopically uniform transformation.