*Gaurav Kumar¹, Sumit Ghosh², Sakari Pallaspuro², Mahesh　C. Somani², Jukka Kömi², Sushil　K. Mishra¹, Amol　A. Gokhale¹ (1. Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai, 400076, India、2. Materials and Mechanical Engineering, Centre for Advanced Steels Research, University of Oulu, 90014, Oulun Yliopisto, Finland)

*Nobuo Nakada¹, Yutaro Abe², Daisuke Fukui³, Ryota Nagashima⁴, Kazuki Shibanuma⁵ (1. Tokyo Tech., 2. Tokyo Tech., 3. Tokyo Tech., 4. Tokyo Tech., 5. The Univ. of Tokyo)

*Junya Tobata¹, Hideyuki Kimura², Shinjiro Kaneko³ (1. JFE, 2. JFE, 3. JFE)

*Yoshinobu Sakura¹, Toshihiro Tuchiyama², Takuro Masumura³, Eriko Shimoda⁴ (1. Kyushu Univ., 2. Kyushu Univ., 3. Kyushu Univ., 4. Nippon Steel)

*Yuto Ochiai¹, Shuhei Wada², Takuro Masumura³, Toshihiro Tsuchiyama⁴, Hiroshi Okano⁵, Shusaku Takagi⁶ (1. The Univ. of Kyushu, 2. The Univ. of Kyushu, 3. The Univ. of Kyushu, 4. The Univ. of Kyushu, 5. JFE Steel Corporation, 6. JFE Steel Corporation)