中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 10 No. 5 October 2000 |
of ductile CuAlMn alloys①
（1.Department of Metal Material, Sichuan University, Chengdu 610065, P.R.China;
2. Key Laboratory for Radiation Physics and Technology of the Education Ministry of
China and Physics Department, Sichuan University, Chengdu 610065, P.R.China;
3. Guangzhou Research Institute for Nonferrous Metals, Guangzhou 510651, P.R.China）
Abstract:The effect of heat treatment on shape memory properties of the ductile CuAlMn alloys was studied. The results show that the heating temperature for the solution treatment should be around 100℃above the transformation temperature in order to obtain good shape memory properties, heating for 10min at this temperature doesn’t have much influence on the shape memory properties, faster cooling rate helps to obtain good shape memory properties and the shape recovery rate(SRR) decreases with raising ageing temperatures. For Cu-16Al-10Mn alloy, the heat treatment process to acquire higher recovery rate is heating at 800℃for 15 min, quenching into ice water and ageing below 150℃for 15 min. For Cu-17Al-10Mn alloy, the process is the same except heating at 700℃.
Key words: CuAlMn alloys; recovery rate; heat treatment; shape memory alloys
