Abstract
We report herein on the preparation of a superhydrophobic surface by high-speed wire electrical discharge machining on the surface of a 7075 aluminium alloy without any chemical treatment. The morphology and the anti-icing, anti-wear and anti-corrosion properties of the superhydrophobic surface were characterised by scanning electron microscopy, contact angle measurements, a custom-made experimental apparatus, a universal mechanical tester and an electrochemical workstation, respectively. Our results indicated that the superhydrophobic specimen had a water contact angle of 154.3 ± 0.5°. The anti-icing, anti-corrosion and anti-wear properties of the prepared specimen were improved by approximately 70%, 110% and 160%, respectively. Moreover, the artificial surface could maintain its anti-icing properties even in the event of surface damage.
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