1. Graduate School of Engineering, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
2. Graduate School of Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
3. Faculty of Engineering, Hokkaido University, Hokkaido, Sapporo 060-8628, Japan
4. Graduate School of Engineering, Tohoku University, Aoba-ku, Miyagi, Sendai 980-8579, Japan
5. Institute of Metal Research, Chinese Academy of Sciences, 62 Wencui Road, Liaoning, Shenyang 110016, China
6. Mechanical Engineering Department, College of Engineering & Petroleum, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait