Comparative study on fretting wear-resistant properties of ion-plated TiN and magnetron-sputtered MoS_2 coatings

摘要

This paper studied the fretting properties and mechanism of TiN and MoS_2 coatings on 1045 steel. The results showed that the fretting-resistant property of ion-plated TiN coating is obviously better than that of magnetron-sputtered MoS_2 coating on SRV fretting tests. Under the given test parameters (normal load 10 N, slip amplitude 100 µm and frequency 10 Hz), the fretting wear mechanism of TiN coating is particle detachment through the propagation and fracture of fine microcracks on surface, and the fretting wear mechanism of MoS_2 coating showed its damage process by degradation and abrasion of materials.