TRIBOTECHNICAL PROPERTIES OF COATINGS MADE OF POWDER COMPOSITES
Studies have been carried out on the comparative evaluation of tribotechnical properties of coatings formed by the method of deformation cladding with a flexible tool (DCFT) with composite materials obtained by sintering mixtures of M1 copper powder doped with tin, lead, graphite, molybdenum disulfide, diamond graphite charge УДАГ (UDAG). It has been established that for the formation of coatings by the DCFT method, which are operating under friction without lubrication and at a specific load of 35 MPa, it is preferable to use powder composite donor materials based on copper and lead (up to 10 wt.%) or copper and UDAG (up to 1 wt.%). Friction pairs with samples coated with these donor materials provide a stable steady-state friction mode, with a friction coefficient of 0.16-0.19, while weight wear of the sample and indenter in these friction pairs is practically absent.