Formation of a Corrosion-Resistant and Anti-Icing Superhydrophobic Surface on Magnesium Alloy via a Single-Step Method

Abstract

© The Author(s) 2016. A superhydrophobic surface with chemical and long-time stability was fabricated on AZ31 magnesium alloy in a single-step via hydrothermal synthesis to improve corrosion resistance. The as-prepared surface repelled aqueous solutions with a static water contact angle of 156.7 ◦ , and its superhydrophobicity was maintained for more than one year. The superhydrophobic surface showed anti-icing performance in a cold environment. The electrochemical measurement showed the superhydrophobic coating surface improved corrosion resistance for the Mg alloy substrate in 3.5 wt% NaCl solution. In this study, we sought higher efficiency and environmental friendliness to enhance the prospects for application of magnesium alloys.