Electrolytic-plasma processes are new highly efficient and environment friendly processing techniques of metals and alloys; they could be applied for polishing and cleaning of the metal surfaces, for thermal and chemical-thermal treatment. The present work is related to the study of modes, established on the active electrode made from aluminum during the anodic process and using of these modes for polishing of its surface, and also for the synchronous polishing of the anode surface and coating removing from the surface of the copper-plated cathode. The copper content and surface roughness of the metal before and after treatment were evaluated by means of the profilometry and energy-dispersive Xray analysis (EDAX). The composition, microstructure and morphology of the copper coating removed from the cathode surface have been studied depending on treatment parameters. The results show that electrolytic-plasma processes can be effectively used for polishing of the surface of aluminum, simultaneous polishing of the aluminum anode and removing of the copper coating from the cathode.

This article briefly reviews modern methods for oxidizing coating of valve metals (Al, Ti, Mg, etc.). These methods include microarc oxidation, plasma-electrolytic-arc oxidation, anodic -spark oxidation. Their common characteristics as well as differences between these methods and electrolyte-plasma processing by electrohydrodynamic mode of anodic process are described. The composition, microstructure and surface morphology of the coating formed on the surface of titanium alloys depending on the electrolyte-plasma processing parameters are investigated.

Electrolyte plasma processes are advanced high-effective and ecological methods of treating the metal surface and can be used as for cleaning and polishing of metal surfaces, as for thermochemical treatment. Previously we showed the possibility to prepare coatings on valve metals at the electro-hydro-dynamic mode and described some patterns of this process. This article is dedicated to the description of coating of both valve and non-valve metals and alloys. Composition, structure and morphology of coatings, which are forming on the Ag-and Al-based alloys surface, were studied depending on parameters of the electrolyte plasma processing.