Abstract
The silicate composite coating with corrosion resistance was prepared by one-step hydrothermal method on the surface of magnesium alloys. The effect of different time and temperature on the corrosion resistance of silicate coatings was also investigated. Electrochemical tests were carried out on AZ91D and coated samples in 3.5 wt% NaCl solution. The microscopic morphology and composition of the coated samples as well as the anti-corrosion mechanism were investigated through the tests. The results showed that the cluster structure on the surface of the coating effectively prevented the electrolyte from entering the surface of the magnesium alloy, and the corrosion current of the coating decreased by four orders of magnitude compared with that of the magnesium alloy substrate, which greatly improved the corrosion resistance of the magnesium alloy. This provides a new approach to inorganic clay in metal corrosion prevention.
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Data Availability
The datasets generated during and/or analyzed during the current study are available from the corresponding author upon reasonable request.
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Funding
This work was supported by the Natural Science Foundation of Guangxi (Grant 2023GXNSFAA026371).
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M.J wrote the main manuscript text, J.W provide the investigation, and J.Z provide the concept. All authors reviewed the manuscript.
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Jiang, M., Wu, J. & Zhu, J. One-step Preparation of Silicate Coatings on AZ91D Magnesium Alloy Surface for Boosting its Corrosion Resistance. Silicon 16, 1147–1159 (2024). https://doi.org/10.1007/s12633-023-02736-5
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DOI: https://doi.org/10.1007/s12633-023-02736-5