The Influence of Shot Angle Variation at the Process of Dry Shot Peening to the Surface Roughness and Corrosion Resistance of the AISI 316L Austenitic Stainless Steel

AISI 316L is the austenitic stainless steel type that widely used in biomedical implant and artificial organs. This material's cannot be hardened by heat treatment but the mechanical strength could be increased by cold working process. Dry shot peening is the one of cold working process in which the surface specimen bombarded with spherical media called shot to produce a compressive residual stress layer and modify mechanical properties of metal's surface. The objectives of this research are to investigate the effect of shot angle variation of dry shot peening process on the surface roughness and corrosion resistance of AISI 316L.