Study of Electrolytes effect on corrosion of oxide layer created on magnesium alloys by PEO

In this study, we review the studies conducted in the field of plasma electrolytic oxidation (PEO) on magnesium based to type of electrolytes and additives. The most studies are focusedon phosphate and silicate based electrolytes with varying amount of hydroxide species. The study showed that increase of KOH content, decreases sparking voltage and increases corrosion resistance also it was revealed that sulphate species create stable passive film and increasecorrosion resistance. Corrosion and wear resistance of coating conducted by PEO was higher than parent material.

Keywords:

corrosion , PEO , magnesium , electrolyte