[1] Steelmaking, Plate, Bar and Wire Rod Research and Development Div., Research and Development Center, Nippon Steel and Sumikin Stainless Steel Corporation, 3434, Ooaza-Shimata, Hikari, Yamaguchi, Japan
[2] Technical Control Div., Nippon Steel and Sumikin Stainless Steel Corporation, Japan
[3] Technical Div., Nippon Steel and Sumikin Stainless Steel Corporation, Japan
[4] Production Planning and Quality Control Div., Hikari Works, Nippon Steel and Sumikin Stainless Steel Corporation, Japan