Effect of thickness of period multilayer coatings MoN/CrN on physical and mechanical properties

Abstract

The paper considers the influence of the period of the layers to increase the micro-hardness up to 39 GPa multilayer vacuum arc coating MoN/CrN. It is shown that ion cleaning of chromium and molybdenum substrate leads to the formation of the interdiffusion zone improves adhesion properties. Multilayer MoN/ CrN coating deposited on the substrate surface potential of –20 V to result in formation of non-oriented coating with a friction coefficient of about 0.15. Production tests have shown an increase in tool life with vacuum arc coating MoN/CrN to 6 times compared with the uncoated tool.