Effects of different mechanical surface treatments on surface integrity of TC17 alloys

The effects of shot peening (SP), ultrasonic surface rolling (USR), and laser shock peening (LSP) processes on the surface integrity of TC17 alloys, including the surface topography, in-depth residual stress and microhardness distributions, and microstructure, are investigated and compared. The results show that the lowest surface roughness values of 0.04–0.12 μm and a smooth surface topography are achieved from the USR process, while those...