Modification of sprayed with supersonic coatings by microplasma oxidation

Due to the fact that the increase in the efficiency of transportation processes directly depends on the reliability of transport equipment, this article discusses the method of hardening the surfaces of parts of transport machines with a new efficient oxidation technology. The process of obtaining multilayer composite systems by combining supersonic gas-flame spraying of an aluminum coating with subsequent microplasma oxidation to obtain oxide-ceramics was studied. The structure and composition of the treated coating was studied. An increase in the porosity and microhardness over the depth of the layer was revealed.