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

PurposeThis paper aims to comprehensively review the preparation methods of superhydrophobic surfaces (SHPS) for corrosion protection of Mg alloy in recent years.Design/methodology/approachThe preparation methods, wettability and corrosion resistance of SHPS on Mg alloy in the past three years are systematically described in this paper.FindingsTwo 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/valueThis 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.