Research Progress of Intelligent Anti‐Corrosion Coatings and Their Healing Agents

Abstract Metals are prone to corrosion, so the development of efficient intelligent protective coatings has become a major demand. In recent years, researchers have made significant progress in intelligent anti‐corrosion coatings field. Intelligent anti‐corrosion coatings can precisely release the required healing agents or change the solid–liquid phase transition of the coatings in response to external stimuli, such as pH, temperature, and redox, achieving intelligent anti‐corrosion. This review summarized the classifications of anti‐corrosion coatings, discussed the triggering response mechanisms of intelligent anti‐corrosion coatings, and explored corrosion inhibitors as healing agents for intelligent anti‐corrosion coatings, aiming to provide a reference for further development.