Abrasive wear model for lubricated sliding contacts

A lubricated wear model for stochastic rough surface in sliding contacts is presented. In this model, the visco-elastic characteristic of the solid, the effects of surface roughness profiles, hardness of materials and operating conditions are included. The reasonableness of the model is proved by comparing calculated values with the test results on a ring-on-block test machine. They coincide well. From the model, the relationship between wear rate and film thickness ratio can be deduced. It provides a theoretic basis for wear prediction and prevention.