Effect of the Pre-Shot Peening and Nitrogen Ion Implantation Combined Surface Treatments on the Surface Structure and Properties of Gear Steel 16Cr3NiWMoVNbE

Transmission engineering components need to fulfill requirements for adequate wear resistance and fatigue resistance, which are related their surface properties. In this paper, we combined shot peening nitrogen ion implantation improve the properties of 16Cr3NiWMoVNbE gear steel. The average roughness decreased slightly after because high-speed impact implanted ions having etching role. maximum compressive residual stress near-surface layer treatment increased by more than 11.8–15.9% compared with peening. diffused through deformation channel, degree temperature were positively correlated diffusion process. nano-hardness obtained was 124.4% AR state.