Effect of alcohol addition on the structure and corrosion resistance of plasma electrolytic oxidation films formed on AZ31B magnesium alloy.

ABSTRACT: The effect of the addition of alcohol to a Na₃PO₄-based electrolyte on plasma electrolytic oxidation (PEO) of AZ31B magnesium alloy was investigated. Anodization with spark discharge was conducted in Na₃PO₄-based electrolyte containing various alcohols (e.g., ethanol, ethylene glycol, and glycerol) at a constant current density of 200 A m^-2 and a constant temperature of 25 °C. Voltage-time curves during the PEO process, the film structure, surface roughness, crystallographic structure, composition, corrosion resistance, and withstand voltage were investigated using various analytical equipment and electrochemical measurements. When the electrolyte containing alcohol was used, the initial bending voltage was higher than that obse

SUBMITTER: Asoh H 

PROVIDER: S-EPMC9050119 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature