抄録
In order to improve the high cycle rotating bending fatigue property of Ti-6Al-4V Titanium alloy, laser peening without coating and shot peening with zirconia shot were applied. As the result of investigating the relation between fatigue property, surface roughness and residual stress, it proposed that fatigue life property was improved by giving the mild compressive residual stress which was C-Type distribution without surface roughness increasing.
