Influence of Temperature on Mechanical Properties of Oxide Films Using High Voltage Electrochemical Oxidation

Abstract

The High Voltage Electrochemical Oxidation was used to produce an alumina ceramic film on aluminum alloy AMg2. The processing was carried out in oxalic acid as an electrolyte under invariable current and duration for each sample and various anodizing temperatures and current densities. The results were discussed in light of the rate of ionic current flow through the coating during anodic polarization measurements.

Keywords

• electrochemical oxidation
• aluminum oxide
• microhardness
• roughness
• electrolyte