Effect of hydrothermal treatment time on the corrosion resistance of MAO/LDH composite coatings on AZ91D magnesium alloy surfaces

Key Points

• Corrosion resistance improves with specific hydrothermal treatment times, enhancing durability.
• Optimal time frames include significant resistance improvements up to 50% in some conditions, supporting longer lifespan.
• Analysis of coating properties reveals performance variations based on hydrothermal treatment duration.
• Findings suggest that optimization of treatment time may enable better corrosion protection for magnesium alloys.