IMPROVEMENT OF PERFORMANCE PROPERTIES OF TITANIUM ALLOYS BY APPLYING PEO COATINGS
Keywords:
Titanium and its alloys, PEO, electrolytes, coating, microhardness, corrosion behaviorAbstract
Titanium and its alloys are widely used in various industries due to their unique properties - low density, high thermal stability and specific strength, high corrosion resistance, good biocompatibility. However, along with high physical and mechanical properties, titanium alloys have low wear resistance. In order to improve the properties of titanium and its alloys, plasma electrolytic oxidation (PEO) of their surface is considered as a reliable, simple and environmentally friendly method that allows to improve the performance characteristics of titanium and its alloys. The influence of the component composition of electrolytes and process modes, which affect the microstructure and formation of PEO films, was analyzed. It is shown that PEO coating is promising and can provide optimal tribological and corrosion properties of titanium and its alloys.



