About SUZUKI MASAFUMI
About WATANABE YOICHI
About パーカー熱処理工業
About KUMAGAI SUSUMU
About ASADA KAKU
About 日本熱処理技術協会講演大会講演概要集
About low alloy steel
About chromium containing alloy
About gas nitriding
About surface heat treatment
About metal structure(microstructure)
About surface structure
About surface hardening(surface treatment)
About hard layer
About microhardness
About thickness of strata
About growth rate
About concentration distribution
About diffusion layer
About precipitate(phase separation)
About epsilon phase
About nitride
About mechanism
About SCr 420H
About microstructure
About surface tissue
About formation mechanism
About Surface hardening
About Structural hardening phenomena
About Cr
About ガス窒化
About 研究