FIELD: metallurgy, particular, deposition of oxide coatings to metal articles with use of cathode- anode electric microdischarges in alkali electrolyte. SUBSTANCE: oxidation is carried out with the use of 50 Hz a.c. with density of 15.5-45.8 A/sq.m with current cathode component-to-anode component ratio of 1.36-1.92. EFFECT: reduced power consumption without worsening of operating characteristics of coating. 4 tbl
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