1. JFE Steel Kabushiki Kaisha Higashi Nihon Seitetsujo K Baba Materials Integration Research Dept., , Kawasaki, Japan
2. K Eguchi Tubular Products & Casting Research Dept., Handa, 475-8611, Japan
3. JFE Techno Research Corporation Kawasaki Office W Kimura Function Materials Solution Division, , Kawasaki, Japan
4. JFE Techno Research Corporation Kawasaki Office Y Hata Function Materials Solution Division, , Kawasaki, Japan