Tribological performance of Mn3(PO4)2 coating and PC/MoS2 coating in Rolling-Sliding and pure sliding contacts with gear oil

The tribological performance of Mn.P coating and PC/MoS2 coating was investigated and compared with that of the reference steel (AISI52100) with different surface roughness. A mini traction machine and SRV tribometer were used to measure the COF under rolling-sliding and pure sliding conditions. Mn.P and PC/MoS2 exhibited a significant antifriction effect. The COF of the coated samples were less affected by the change in slide-to-roll ratio than that of the uncoated samples. As the wear time was prolonged, the running performance of the Mn.P coating improved relative to that of PC/MoS2. The effects of roughness, rolling speed and contact loads of coatings on wear mechanisms were discussed. Only one of the contact pairs treated with Mn.P coating showed improved tribological behaviour.

Automated summary

The tribological performance of Mn.P coating and PC/MoS2 coating were investigated and compared with AISI52100 steel, showing significant antifriction effects with less influence from slide-to-roll ratio changes for coated samples. As wear time increased, the running performance of Mn.P coating improved relative to PC/MoS2, but only one contact pair treated with Mn.P coating showed improved tribological behavior.