Corrosion and wear resistance of micro-arc oxidation coating on glass microsphere reinforced Mg alloy composite

In this study, micro-arc oxidation (MAO) coatings were prepared on a novel glass microsphere reinforced Mg alloy composite to retard the degradation of the composite in the liquid environment containing Cl− for degradable downhole tool applications. The microstructure and chemical composition of the coatings were characterized by SEM, EDS, XPS and XRD. The growth characteristics of the MAO coatings on different matrix regions were analyzed. The...