Abstract
The paper deals with the studies on electrolytic-plasma polishing (EPP) of the surface of Ti-6Al-4V alloy with ultrafine-grained (UFG) structure produced by equal channel angular pressing. The electrolyte temperature range and working shift voltages of EPP to ensure the polishing effect in Ti-6Al-4V with UFG structure are discussed. The results of the studies on topography and chemical composition of the alloy surface in coarse grained (CG) and UFG states by scanning electron microscopy are presented. The impact of EPP duration on the surface roughness and metal removal rate of conventional and UFG alloy are demonstrated. The perspectives of the EPP process applied to a surface treatment of medical implants and items for mechanical engineering are discussed.
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