Fretting wear mechanism of antifriction coating with selenium on aluminum alloy

Abstract

The article considers the issues associated with structure and mechanism of destruction of the antifriction coating with selenium on an aluminum alloy during fretting wear in contact with a steel ball. The process of fretting wear of the coupling under the influence of vibrations in heating conditions of up to 200 0C is simulated. The influence of load on the wear resistance index is analyzed. It has been established that an increase in load leads to a decrease in fretting wear of the coating. Testing of an aluminum alloy sample under the same conditions showed that an increase in load leads to an increase in wear resistance. Based on the study, it is proposed to protect the workpiece from vibration to prevent the destruction of the anti-friction coating during logistics operations.

Keywords

• fretting wear
• material wear testing
• antifriction coatings
• wear resistance indicators
• tribological properties of selenium coating