WEAR-RESISTANT COMPOSITE COATING Russian patent published in 2003 - IPC

FIELD: mechanical engineering. SUBSTANCE: wear-resistant coating is composed of basic metal comprising disperse phase particles uniformly dispersed in basic metal, said particles having increased wear resistance as compared to basic metal. Sizes and volumetric content of disperse phase particles in coating are determined from formula: where d_f is average diameter of disperse phase particles; r is radius of microroughnesses of contacting surfaces; K_v is coefficient; v and Δ are roughness characteristics; K_w volumetric content of disperse phase particles in coating; Q is elastic constant of metal of surface to be joined to; P_a is nominal pressure; P_c is contour pressure; P_r is actual pressure. Coating of such structure may be used for increasing service life of machine parts, instruments and tools. EFFECT: provision for increased wear-resistance combined with reduced content of disperse phase in coating, reduced cost for manufacture of wear-resistant coatings. 1 dwg