Flash-PEO as an alternative to chromate conversion coatings for corrosion protection of Mg alloy

In the present work, a flash-PEO coating is developed on AZ31B alloy in combination of silicate, phosphate, and fluoride based electrolyte order to offer green alternative chromate conversion coatings. Multilevel active protection achieved through synergetic self-sealing effect PEO itself inhibition provided by an organic inhibitor impregnated pores post-treatment step. The results indicate that coatings, loaded with corrosion inhibitors, can be recommended for exploitation industrial level as equally effective system CCC paint-bearing paint-free applications.