Fig. 9: Anti-corrosion mechanism of biomimetic coatings.

Schematic of the mechanism of the anti-corrosion performance of WPU a, b, WPU–GORM a, d, and WPU–GOLM f, g composite coatings. c, e, h SEM images of the fracture cross-section of WPU, WPU–GORM, and WPU–GOLM composite coatings.