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    • S SHIVAKUMARA

      Articles written in Bulletin of Materials Science

    • Volume 45 All articles Published: 26 July 2022 Article ID 0149

      Electrochemical corrosion behaviour of zinc and zinc-reduced graphene oxide coatings on mild steel in 3.5% NaCl solution

      R A DHARANENDRA M SHET PRAKASH S SREENIVASA S SHIVAKUMARA

      More Details Abstract Fulltext PDF

      The use of graphene-based corrosion protective coatings has been received much interest due to its ability to prevent the metal surface. Herein, zinc and Zn-reduced graphene oxide (Zn-rGO) composite coatings are electrochemically deposited on mild steel using an acid sulphate bath solution in the absence and presence of rGO, respectively. Scanning electron microscopy, potentiodynamic polarization and electrochemical impedance spectroscopy techniques areused to study electrochemical corrosion behaviour of coatings. The surface morphology results reveal that the Zn-rGO coating exhibits a smaller grain size with less surface defects compared to pure zinc coating. The potentiodynamic polarization and electrochemical impedance results confirm a significant increase in corrosion resistance by incorporation of rGO to zinc matrix.

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