Study on the effects of the shot peening intensity on the microstructure, friction and wear properties of high-strength steel.

ABSTRACT: The microstructure, hardness, residual stress, and friction and wear properties of 25CrNi2MoV steel with different particle diameters during shot peening strengthening were studied. Studies have shown that a grain refinement layer appeared on the surface of the material after shot peening. The shot peening intensity increased with increasing particle diameter; a greater shot peening intensity corresponded to a greater surface hardness of the material, the maximum hardness was 592 HV0.2, and the residual compressive stress on the material surface was 725 MPa. A shot peening finite element model was established to accurately predict the residual stresses in the samples after shot peening. The prediction errors were 1.4-7.9%. The finite element model indicates that the maximum residual stress

SUBMITTER: Guan H 

PROVIDER: S-EPMC11658633 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature