Abstract
Effects of cavitation peening (CP) on the bending fatigue strength of aluminum alloy (A7075-T6) containing an artificial semi-circular slit were investigated. The bending fatigue test specimens with a small semi-circular slit with depth of 0.05" 0.3mm were subjected to CP. Then, bending fatigue tests were carried out with the specimens to determine the fatigue strength and the acceptable surface defect size by CP. It was found that the fatigue strengths were increased by CP. And the depth of the acceptable surface defect size was between 0.2mm and 0.3mm.
