Modeling of the Wear Particles Formation in Mixed Lubricated Sliding Line Contacts

摘要

Wear is the gradual removal of surface material through generation of wear particles. The influence of wear particles generated during sliding is not only limited to wear process itself as for example in the transition from the more severe "running-in" mode to the mild wear regime [1,2] but can also have a severe impact on a complete system. For example the oxidation of grease thickener and base oil was found to be accelerated by the wear debris [3,4] and regarding artificial joints an autoimmune reaction of the body is significantly dependent on the size of the formed wear fragments, when the artificial joint replacement is used [5,6]. In addition, the wear particles also may have environmental effect [7]. Hence, development of models for predicting the size and shape of wear particles is necessary for optimization in these systems.