OBTAINING OF WEAR-RESISTANT COATINGS ON DETAILS OF VEHICLES UNDER NON-STATIO-NARY TEMPERATURE CONDITIONS

In this work, we consider the production of protective coatings on the details of the crank mechanism. Steel 50 was used for the research. The coating was formed for 15-60 minutes at a temperature of 900-10500С. The optimum compositions of SHS-charge containing 10% B, 7% Si, 20% Ti were obtained. It is established that with increa-sing hardness wear resistance increases. On the surface, a micro hardness of 15000-17500 MPa was obtained. Due to alloying of chromium-coating coatings with boron, silicon and titanium, obtaining an increase in wear resistance by 1.8-2.1 times than for coatings obtained under isothermal conditions and the term of chemical-thermal treatment decreased by 2.5-4 times. This allows you to reduce energy costs during the process of chemical-thermal treatment.