Research on the structure and wear properties of grind-hardened 42CrMo

摘要

grind-hardening test was performed on 42CrMo steel in the paper.Microstructure of the hardened layer was observed and the wear-resistance of hardened specimens was done too.The results showed that microstructure of the fully hardened layer was mainly composed by lath martensite; microhardness of the hardened layer was above 700HV and the abrasive wear and the adhesive wear properties of hardened layer were 2～9 times than that of the base.