ANTIFRICTION PROPERTIES OF NITRIDE-OXIDE COATINGS IN THE PRESENCE OF LUBRICANT

Abstract

The article presents the results of studies of the antifriction properties of nitride oxide coatings obtained by gas nitriding and subsequent oxidation in water vapor. Optimal structural and phase compositions of the coating were established in terms of ensuring better surface treatment and maximum wear resistance under sliding friction conditions in the presence of a lubricant. It is shown that a thin surface oxide layer with polishing properties on the surface of the nitride layer accelerates the achievement of operational roughness during sliding friction in the presence of a lubricant. The type and thickness of the surface oxide layer, which gives a damping quality to the nitride layer located above the internal nitriding zone, have been established