Advancing the long-term corrosion barrier performance of PEO coatings on Mg-Zn-Ca alloy through modified calcium- and phosphate-based sealing treatment

Key Points

• The modified sealing treatment significantly improves the corrosion barrier performance of PEO coatings on magnesium-zinc-calcium alloy.
• Performance metrics show that the treated coatings resist corrosion better than untreated ones in various environmental conditions.
• Analysis of alloy coatings revealed the effective integration of calcium and phosphate-based materials enhances overall durability.
• Improved barrier performance offers potential for longer-lasting applications in industries requiring lightweight materials. More testing is needed for broader applications.