Microstructural Analysis and Electroresistance Investigation of Hardalloyed Electrospark-Deposited Coatings on TiAl6V4 Alloy

The paper discusses the possibilities for electrical spark deposition (ESD) of hardalloyed coatings on titanium alloy TiAl6V4 with classic and multicomponent composition electrode materials. The deposited coatings were studied for their mechanical properties and their electro-resistive testing results. Surface topography, microhardness and thickness were used as main indicators for evaluation of the properties of hardalloyed ESD coatings on titanium alloy.