Corrosion coatings MDO composition in aggressive environments

Investigations of chemical processes in the formation of coatings by microarc processing silicate alkaline electrolyte are considered. The results of experimental studies to determine the composition and corrosion resistance of oxide coatings on aluminum alloys are shown. Technological processing modes in which to form a coating with high alumina content are defined. It has been established that the coatings exhibit a high corrosion resistance in aggressive environments compared with coatings obtained by electroplating. The dependence of the corrosion resistance in aggressive environments on the chemical composition is shown.