In this paper, superhydrophobic coatings are prepared on 6061 aluminium alloy by combining microarc oxidation technology and self-assembly of perfluorodecyltriethoxysilane. The superhydrophobic coatings possess corrosion and abrasion resistance and self-cleaning ability, which effectively improve the shortcomings of MAO coatings that are susceptible to liquid erosion due to micropores and microcracks, and provide an effective surface protection strategy for aluminium alloys in harsh environments. 

li Zhou a, Hailin Lu a, *, Xiangheng Zheng c, Qiqi Wua, Wenbo Wang b and Fang Guo b, *. Wenbo Wang b and Fang Guo b, *. Preparation of superhydrophobic coatings on 6061 aluminium surfaces by MAO and self-assembly of PFDTES and study of their property. [J]. Progress in Organic Coatings. (Impact Factor: 6.5, CAS II).

Fig. 1 Water contact angle of samples at different voltages: (a) 0 V, (b) 400 V, (c) 425 V, (d) 450 V, (e) 475 V, (f) 500 V; (g) Variation of water contact angle and sliding angle of samples at different voltages.