Status of Test Methods for Contact Materials Fretting Wear Characteristics

The fretting wear of contact materials is one of the most important characteristics of the electromechanical components like electrical connectors.The failure mechanism,influenced by many factors,is very complicated,making it the research focus in electrical contact fields recently.This paper summarizes the testing analysis methods of the fretting wear characteristics in recent years,involving the design of fretting wear devices,the measurement of contact resistance and the testing analysis methods for contact materials.Thus it can provide references for the determination of fretting wear failure mechanism,the best combination of substrate materials and coating materials and the optimization of manufacturing processes.