The superficial hardening of non-quenchedsteels had been carried out on a surface grinder, the influences of grinding mode and cooling conditions on the surface hardened layer were studied.
The formation of the inter-lath austenite in quenched low-carbon steels is described and the existence of the carbon diffusion during the lath martensite formation is emphasized.
叙述淬火低碳钢内条间奥氏体的形成,着重指出条状马氏体形成时存在碳的扩散。
3
The test indicates that contact fatigue life and wear resistance of surface quenched casting steels and Bainite quenched spherical cast iron are increased largely.