DEEPLY CARBURIZED LOW OR MEDIUM CARBONS STEELS

摘要

A new process for forming deeply carburized, case-hardened low- to medium-carbon steel for use in high wear, high toughness applications. The process involves subjecting the steel to a carburizing heat treatment, then subjecting the carburized steel to a deep hardening stage to produce a hard case. Carburizing such steels in the past has led to surface cracking, but here, the deep hard case creates compressive stresses at the surface and prevents cracking.