Phase Evolution and Diffusion Mechanism in Zn/Mg/Zn Coatings by PVD

This study delves into the phase evolution and diffusion mechanisms of Zn/Mg/Zn coatings produced via Physical Vapor Deposition (PVD). It highlights the challenges of traditional fabrication methods and the advantages of PVD in creating high-quality coatings. The research systematically investigates the heat-treatment evolution of these coatings, revealing the formation of specific intermetallic phases such as MgZn2 and Mg2Zn11. The study also explores the impact of annealing temperatures on the coating's microstructure and phase composition. Through a combination of experimental characterization and first-principles calculations, the study provides a theoretical framework for designing next-generation Zn-Mg coatings with enhanced corrosion resistance and mechanical integrity. The findings offer critical insights into the diffusion behaviors and phase transformation mechanisms, making it a valuable resource for professionals in the field of materials science and coating technologies.