Abstract
The present study explores the assessment of anti-corrosion performance of hot-dip TiO2–Zn–(1 %)Al composite coatings developed on mild steel substrate through electrochemical and topographical evaluation. The electrochemical stability of intermetallic layers of composite coatings after chemical etching is analyzed by correlating topographical parameters from Tapping Mode Atomic Force Microscopy, equivalent circuit elements from Electrochemical Impedance Spectroscopy and potential distribution from Scanning Kelvin Probe Microscopy. The low roughness parameter, low potential difference, and high charge transfer resistance of the tuned composition of TiO2–Zn–(1 %)Al composite coating confirms its enhanced anti-corrosion performance and potential for practical application in marine fields.
Published Version
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