Modelling of Some Degradation Processes by Corrosion Fatigue of Metallic Surfaces

Abstract

Based on the well known fatigue corrosion effects, the mechanical stress and the corrosive environment have a significant effect on the prediction of the lifespan of the equipments that work in corrosive environment, two models are proposed. The first model is dedicated to the evolution of the pits volume that occurs on the specimen surface, while the second one is dedicated to the electrode potential evolution of the material. It was observed a good correlation between the experimental and the predicted results.