Corrosion Resistance of Innovative Composite Coatings Based on Nanoparticles

Organic coatings represent one of the key surface protection strategies for safeguarding various substrates against corrosion, primarily due to their cost efficiency and broad applicability. In most metallic systems protected by organic coatings, overall performance depends on how the coating responds to corrosion stresses encountered during service. Among the most aggressive environments are acidic and chloride-rich media, which significantly reduce protective effectiveness and durability. Exposure to such conditions often results in blistering, cracking, increased porosity, and loss of adhesion. Considering that corrosion-related degradation of metals generates extremely high global costs, it is essential to implement effective corrosion protection systems that also comply with environmental limitations. To enable the widest possible industrial application of anticorrosion coatings, further improvements in their protective properties are required. Functionalization and incorporation of nanomaterials into coatings involve advanced research techniques at the nanoscale, aligning with current scientific efforts to use nanotechnology for solving complex engineering challenges in harsh environments. As a result, nanocomposite coatings exhibit significantly improved anticorrosion behavior compared to conventional coatings. This Special Issue Reprint focuses on the development and application of advanced anticorrosion and multifunctional coatings, with particular emphasis on the preparation and characterization of functionalized materials designed to enhance corrosion resistance.