Modeling Fretting Corrosion

An equation has been proposed for steel to evaluate loss of weight W caused by fretting corrosion on the basis of a model that combines the chemical and mechanical effect of corrosion by fretting. The chemical factor concerns the adsorption of oxygen resulting in oxidation of the metal to form the oxide, and the mechanical factor 

The chemical contribution decreases with increasing frequency of movement as there is little time for the chemical reaction. The mechanical factor is a function of the slip and the load. In the presence of nitrogen, the wear is a function of mechanical factor and is independent of the frequency (8). 

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An equation for weight loss IT of a metal surface undergoing fretting corrosion by oscillatory motion has been derived [93] (Appendix, Section 29.7) on the basis of the model just described, which accounts reasonably satisfactorily for data of Fig. 8.20 ... 

Geringer, J., Taylor, M.L. and Macdonald, D.D. (2012) Predicting the steady state thickness of passive films with the point defect model in fretting corrosion experiments. Proceedings, PRIME 2012 222nd Electrochemical Society Meeting. Pacific Rim Meeting on Electrochemical and Sohd State Science, 7—12 October, Honolulu, Hawaii. 

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