Shape memory alloys( SMAs),as a kind of intelligent functional materials combining with perception and driving function,are more attention to and widely used in various fields since the first application in 1962. Cu-based SMAs are the most potential ones for large-scale industrial applications because of their good shape memory properties,high electrical and thermal conductivities,wide-range transformation temperature and low cost,etc. In recent years,the applications of Cu-based SMAs are booming with the r...