*Fei Li¹, Naokatsu Kannari², Jun Maruyama³, Kazuyoshi Sato², Hiroya Abe¹ (1. Osaka Univ. (Japan), 2. Gunma Univ. (Japan), 3. Osaka Res. Inst. Indus. Sci. Tech. (Japan))

*Fiona Spirrett¹, Soshu Kirihara¹ (1. Joining and Welding Research Institute, Osaka Univ. (Japan))

*Yaqiong Ge¹, Zexin Chang¹, Wenxian Wang², Ninshu Ma³ (1. Taiyuan Univ. of Sci. and Tech. (China), 2. Taiyuan Univ. of Tech. (China), 3. Osaka Univ. (Japan))

*Soshu Kirihara¹, Fiona Spirrett¹ (1. Osaka University (Japan))