Fabrication of superhydrophobic needle-like Ca-P coating with anti-fouling and anti-corrosion properties on AZ31 magnesium alloy

The poor corrosion resistance of magnesium (Mg) alloys limits their applications, and preparing the superhydrophobic coating with a facile and cost-effective method is meaningful for anti-corrosion protection of Mg alloys. In this work, a superhydrophobic needle-like Ca-P coating was fabricated on AZ31 substrate by a chemical conversion method and low energy modification with stearic acid. The water contact angle of the obtained coating was...