Microarc Oxidation of zirconium alloys applying to perspective engine and power plant.

Аuthors

, Lyakhovetsky M. A., Tyurin V. N.

Abstract

The results of corrosion resistance study of samples made from zirconium alloy (Э-110) coated with microarc oxidation (MAO) at the different regimes – are presented in this paper. The advantages of MAO method as compared with ion-plasma depositions methods are exhibited. There are considered the mechanism and physicochemical concept of zirconium alloys plasmaelectrolysis. The optimal regimes of coatings forming and electrolyte compositions with using of mathematical design of experiments are determined. It was obtained, that corrosion resistance of samples with MAO coatings in two times higher than samples without coatings. The materials obtained in this paper applying both in space nuclear power plant and in ground-based nuclear power plant.

Keywords:

plasmaelectrolysis; microarc oxidation, zirconium alloys, coating, nuclear reactor, corrosion resistance, optimal regimes, mathematical design of experiments

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