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Today, parts and tools are increasingly made of composite materials. Realization of specifi c connection between basic material and coating is very important. The quality of coating on products, in terms of wear and resistance to destruction, has a large impact on productivity and reliability of production processes, in particular their life. In this paper, based on experimental investigations, the effect of specific relationship between the base material and coating on tribological and protective features of the product is analyzed.

Achieving the equality between the time of functional aging of mechanical systems and the time of allowed wear of the system elements is the main task of tribology. This can be reached by choosing the optimal material of elements of tribo-mehanical systems. The paper gives the results of experimental research of tribological and mechanical characteristics several pairs of material. Investigations were performed on the device with a rotating disc and static pin.