About YAMAZAKI SHIN'YA
About 琉球大 大学院
About MAKABE CHOBIN
About MAKISHI TAKASHI
About NAKANE NAOKI
About 那覇工高
About 材料試験技術
About tool steel
About heat treatment
About fatigue strength
About annealing (heat treatment)
About crack initiation
About hardness
About normalizing
About S-N curve
About crystal structure
About temperature dependence
About mechanical property
About strength
About Metallic materials
About Heat treatment technology
About Lattice defects in metals
About 工具鋼
About 熱処理
About 疲労限度