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| One-Step Electrodeposition Method for Preparing Hydrophobic Coatings on The Surface of 316 Stainless Steel |
| XU Zhao-wei，WANG Shan*
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| School of Material Science & Engineering，Jilin Institute of Chemical Technology,Jilin City 132022,China |
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Abstract 316 stainless steel is a widely used structural material in industrial applications, and its corrosion remains a critical issue when exposed to humid environments over prolonged periods. In this study, we developed a facile one-step electrodeposition method to fabricate a robust cerium nitrate hexahydrate/myristic acid composite hydrophobic coating on 316 stainless steel. The coating exhibits excellent hydrophobicity and effectively lowers the corrosion potential of the substrate. By optimizing the electrodeposition time and voltage, the hydrophobic performance and structural stability of the composite coating were significantly improved. The hydrophobicity and microstructure of the coating were systematically characterized using water contact angle measurements, scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD). Results show that the static water contact angle of the optimized hydrophobic coating reaches 141.5 ± 1.2°. Electrochemical tests demonstrate that the coated sample exhibits significantly enhanced electrochemical corrosion resistance compared to bare 316 stainless steel, with a notable decrease in corrosion current density and positive shift in corrosion potential.
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Published: 20 December 2025
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