A critical comparative review of cavitation peening and other surface peening methods

Mechanical surface modification such as shot peening offer powerful enhancement of fatigue properties metals and other materials. Cavitation usually causes damage in hydraulic machineries. However, careful selection process parameters allowed developing an approach known “cavitation peening.” Its advantage is roughness increase lower than conventional there are no solid collisions involved. As cavitation a hydrodynamic phenomenon, understanding both fluid dynamics materials science required. distinguished from “water jet peening,” which water column impulse used. Another flavor “Submerged laser peening” that involves the use pulsed can be considered type where cavitating bubbles generated due to ablation. Ultrasound vibration, popular method for generating cleaning, has also been adapted peening. The present comparative review presents key insights achievements addresses future directions required advancing technology by considering mechanisms based on reported data jet, laser, ultrasonic methods critically summarized comparison with Strategic view challenges presented.