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 ...

Peening intensity and coverage are vital measurement outputs to quantify the quality of a peening process in surface enhancement operation metal parts. In practice, these parameters can only be measured offline upon completion, which is not suitable for online tracking operation. Instead, shot stream velocity used as real-time monitoring parameter bridge operational inputs outputs. As such, rob...

Plain bend bars made from FV566 martensitic stainless steel were extracted the root of ex-service power plant turbine blades and several industry-relevant notch geometries introduced. Some samples shot peened. The notched loaded plastically in low-cycle fatigue regime finite element (FE) modeling carried out to investigate effects changing geometry, combined with peening, on behaviors such as c...