Effect of N2 and Ar on the properties of multicomponent ionplasma coatings 12Х18Н10Т+Cu+Al

Abstract

Currently, more and more attention is paid to the creation of complex coatings on machine parts and mechanisms applied by various methods that can increase hardness, wear resistance, corrosion resistance and heat resistance. Improving the physicochemical and mechanical properties of relatively cheap metal alloys, when applied with such coatings, allows increasing the service life of parts, saving material resources. The purpose of the presented work is to create heat-resistant coatings that are not inferior in their characteristics to expensive heat-resistant steels. In the work, the heat resistance of ion-plasma coatings obtained by the method of cathode-ion bombardment at the same time by three electric arc evaporators (Cu, Al and chromium-nickel alloy) in an atmosphere of argon and nitrogen at a pressure of 0.5 Pa was studied. As a result of the measurements, it was established that the coatings obtained have a hardness and wear resistance greater than the nickel-chromium alloy itself; the heat resistance of the applied coatings, especially those obtained in argon, is uniquely high.