Progress in superhydrophobic surfaces for corrosion protection of Mg alloys – a mini-review

Purpose This paper aims to comprehensively review the preparation methods of superhydrophobic surfaces (SHPS) for corrosion protection of Mg alloy in recent years. Design/methodology/approach The preparation methods, wettability and corrosion resistance of SHPS on Mg alloy in the past three years are systematically described in this paper. Findings Two types of SHPS, including single-layer and multilayer coatings for corrosion protection of Mg alloy are summarized. Preparing multilayered coatings with multifunction is the current trend in developing SHPS on Mg alloy. Originality/value This paper reviewed the preparation methods and corrosion resistance of SHPS on Mg alloys. It provides a valuable reference for researchers to develop highly durable SHPS with excellent corrosion resistance for Mg alloys.