Transactions of Nonferrous Metals Society of China
JOURNAL OF RAILWAY SCIENCE AND ENGINEERING
|Vol. 9 No. 4 December 1999|
（Department of Materials Science and Engineering; Central South University of Technology; Changsha 410083; P. R. China）
Abstract:The structural characteristics of M18R martensite, self-accommodation configuration of single variant group and its formation process in a polycrystal Cu-Zn-Al alloy were studied by means of PolyverMET. Mainly, one grain contains one variant group and one group contains 2 4 variants which consist of three kinds of twins, called as AC, AB and AD. The forming process of a group is related with the self-accommodation of stress and strain.
Key words: Cu-Zn-Al alloys; shape memory alloys; metallography