National Natural Science Foundation of China(51071038);Sichuan Province Science Foundation for Youths(2010JQ0002);State Key Laboratory for Mechanical Behavior of Materials;Xi’an Jiaotong University(20131309)
Supported by National Basic Research Program (973 program) (No. 2004CB619302);the National Natural Science Foundation of China (No. 50601020, 50601005);Applied Materials (Xi’an) Foundation (No. XA-AM-200617)