中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 16 No. 5 October 2006 |
（1. School of Materials Science and Engineering, Central South University,
Changsha 410083, China;
2. Key Laboratory of Nonferrous Metal Materials Science and Engineering,
Ministry of Education, Central South University, Changsha 410083, China;
3. College of Biology and Chemical Engineering, Jiaxing University,
Jiaxing 314001, China）
Abstract: The bulk specimens with preferable orientation were utilized to investigate atom exchange of martensite in Cu-13Zn-15Al alloy during non-isothermal aging by in-situ X-ray diffraction. It is found that the exchange of Zn atoms at position Ⅲ and Cu atoms at Ⅱ and the exchange of Zn atoms at position Ⅲ and Al atoms atⅠon the basal plane of martensite occur during heating at a heating rate of 5 ℃/min. 13% (2/25 ) of Al atoms transfer from positionⅠto position Ⅲ when temperature goes up to 160 ℃.
Key words: Cu-Zn-Al shape memory alloy; martensite; atom exchange
