Metals Engineering Quarterly, 第 16 巻

alloy aluminum annealing austenite bainite behavior brittle carbide carbon carbonitride carburizing central burst defect central burst formation chromium coiling temperature composition compound layer cooling copper crack tip crucible test curve deformation zone developed diam diameter ductility effect Elongation evaluated extrusion fatigue ferrite forging formability fracture toughness ft-lb gear grain hardenability heat treated heat treatment high-strength higher HSLA HSLA steels increase ingot intergranular Kisce levels load longitudinal lower magnification martensite material mechanical ment metallographic microcracks microstructure mill Mn-Mo-Cb molybdenum N/mm² nitride nitrocarburizing nitrogen notch oxidation pearlite plate precipitation precipitation strengthening properties quenched range ratio rolling rupture shear sheet shelf energy shown in Fig shows specimens splitting spotweld ẞ heat steel strain rate stress structure Sulfinuz superalloys surface Table tensile strength test temperature thickness tion Trans transus transverse ture vanadium weld metal weldment yield strength