About HASHIMOTO KAZUYA
About 山陽特殊製鋼 研究・開発セ
About special steel
About alloying element
About grain coarsening
About suppression and control
About aluminum
About deoxidization
About niobium
About carbide
About nitride
About precipitate(phase separation)
About titanium
About sulfide(chalcogenide)
About grain refinement
About control
About metal structure(microstructure)
About microstructural control
About Iron and steel materials
About Structural hardening phenomena
About Transformation structures,work structures
About 特殊鋼
About 合金元素
About 基礎知識
About 役割
About 結晶粒