Effect of PEO-modes on the electrochemical and mechanical properties of coatings on MA8 magnesium alloy

By M.V. Sidorova,S.L. Sinebrukhov, O.A. Khrisanfova, S.V. Gnedenkov
Published in Electrochimica Acta NULL 2014

Abstract

Protective surface layers with a high corrosion stability and significant microhardness as compared to the substrate material were obtained on MA8 magnesium alloy by Plasma Electrolytic Oxidation (PEO) in a silicate-fluoride electrolyte. The phase and elemental composition of the coatings were investigated. It was found that the application of the bipolar PEO-modes enables one to synthesize on the alloy's surface a high-temperature phase of magnesium silicate, forsterite (Mg2SiO4) having a good anticorrosion and mechanical properties.

Read Article » Back