About SUGIMOTO KOICHI
About KOBAYASHI JUN'YA
About HOJO TOMOHIKO
About high strength steel
About TRIP steel
About metal structure(microstructure)
About tensile strength
About ductility
About fracture toughness
About formability
About fatigue strength
About retained austenite
About AHSS
About Transformation structures,work structures
About Mechanical properties
About 高強度
About 合金
About TRIP鋼
About 組織
About 機械的性質