Comparative evaluation of tribotechnical characteristics of the W-S-N and W-S-C composition combined solid lubricating coatings of magnetron application for the normal atmospheric conditions

A method was developed and implemented in regard to solid lubricating coatings (SLC) of the magnetron type for recalculating the specific wear intensity of the foreign-made friction pairs operating according to the ball-plane scheme of reverse and rotational motions to the linear wear intensity of friction interfaces with the SLC recommended for tribocouples according to the domestic standard. It was established that, compared with the VNII NP 212 SLC of suspension application, wear intensity of the combined SLC of magnetron application was higher: by 60–125 times for the W-S-C composition and by 40–63 times for the W-S-N composition. In the steady state, the W-S-N SLC had a higher friction coefficient than that of the VNII NP 212 SLC. In general, the W-S-C SLC antifriction characteristics were lower than those of the VNII NP 212 SLC, except for the D 4-38 SLC.