Properties of Composite Electrolytic Coating Nickel–Cobalt–Aluminum Oxide–Fluoroplastic

Abstract

The method of obtaining composite electrolytic coatings (CEC) based on the nickel–cobalt–aluminum oxide system possessing high performance properties is considered in the work, since in engineering, automotive, instrument making, and other industries much attention is paid to the development of new materials possessing increased physical and mechanical properties. The use of such CEC will not only increase the reliability and durability of new machine parts and mechanisms and restore old ones, but in many cases will also replace defective alloyed steel and cast iron with cheaper metals. The article suggests a chloride electrolyte for the application of wear- and corrosion-resistant CEC nickel–cobalt–aluminum oxide–fluoroplastic. The effect of electrolysis regimes on the composition of the electrolyte and the concentration of alloying components on the physical and mechanical properties (wear resistance, corrosion resistance, microhardness, internal stresses, porosity, adhesion) of nickel–cobalt–alumina–fluoroplastic coatings is studied. The use of such coatings will expand the scope of their use as a wear- and corrosion-resistant coating in various friction nodes.