Stress-Corrosion of Mild Steel……2. The effect of shot blasting on the corrosion-fatigue of mild steel

Abstract

Fatigue properties of as-rolled and shot-blasted mild steel plates were investigated in air, in sea water and under impressed current cathodic protection. By shot-blasting the fatigue limit in air rises about 20% over that of as-rolled plate. The reasons why the S-log N diagrams of two surface conditions are close to each other in the corrosion-fatigue test and the fatigue limits under cathodic protection are lower than those in air were considered.Introduction.