Research of smart anticorrosive coating for AZ91D alloy

Developing a biomimetic surface with non-wetting properties, durability, and smart self-healing properties, influenced by pitcher plants. In this study, the Smooth Liquid-Infused Porous Surface (SLIPS) with liquid repellency was prepared on the Magnesium alloy, combining various techniques such as anodizing, boiling and chemical modification. The results demonstrate that the resulting coated surface exhibits not only excellent antifouling, self-recovery, and stability, but also excellent adhesion strength with substrate, providing a multifunctional protective barrier for the Magnesium alloy. SLIPS maintains corrosion resistance and restores superhydrophobicity as needed., benefiting from its self-healing function, and the self-recovery process of SLIPS was simulated by Large-scale Atomic/Molecular Massively Parallel Simulator theory. Additionally, reduced coating corrosion current density by 4 orders of magnitude against the substrate, substantially enhancing the anti-corrosion of substrate and expanding their potential for use in various applications.