1. a Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Japan;, Email: t_kikuchi@yz.yamagata-u.ac.jp
2. b Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
3. c Fukui University of Technology, 3-6-1 Gakuen Fukui, Fukui 910-8505, Japan
4. d Joining and Welding Research Institute, Osaka University, 11-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
5. e Joining and Welding Research Institute, Osaka University, 11-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
6. f Kurimoto Ltd., 2-8-45 Shibatani, Suminoe, Osaka 559-0021, Japan
7. g Graduate School of Mechanical Engineering, Laval University, Quebec City, Quebec, Canada G1V 0A6