1. College of Mechanical and Vehicle Engineering Taiyuan University of Technology Taiyuan 030024 P. R. China
2. Engineering Research Center of Advanced Metal Composites Forming Technology and Equipment Ministry of Education Taiyuan 030024 P. R. China
3. College of Materials Science and Engineering Taiyuan University of Technology Taiyuan 030024 P. R. China
4. School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001 P. R. China