Controlled Shot Peening and its Effect on Fatigue and Stress Corrosion Cracking of Welded Joints

Abstract

Controlled Shot Peening is recognised and widely accepted as a process to increase fatigue strength and stress corrosion cracking and extend life of fabricated components, particularly in high performance applications, by the introduction of compressive residual stress.

Fatgue and stress corrosion cracking are also problems commonly encountered, in many areas of industrial activity, where beneficial residual stress induced by controlled shot peening can provide a cost efficient solution.