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Open AccessArticle

One-Step Potentiostatic Deposition of Micro-Particles on Al Alloy as Superhydrophobic Surface for Enhanced Corrosion Resistance by Reducing Interfacial Interactions

by Tian Shi 1, Xuewu Li 1,*, Qiaoxin Zhang 2,* and Ben Li 2
1
School of Mechanical Engineering, Xi’an University of Science and Technology, 58 Yanta Road, Xi’an 710054, China
2
School of Mechanical and Electronic Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China
*
Authors to whom correspondence should be addressed.
Coatings 2018, 8(11), 392; https://doi.org/10.3390/coatings8110392
Received: 30 August 2018 / Revised: 3 October 2018 / Accepted: 1 November 2018 / Published: 5 November 2018
(This article belongs to the Special Issue Advanced Coatings for Corrosion Protection in Extreme Environments)
Corrosion failure is a thorny problem that restricts the application of Al alloys. As a new technique for functional realization, hydrophobic preparation offers an efficient approach to solve corrosion problem. This work has developed a facile and low-cost method to endow Al alloy with enhanced water-repellent and anticorrosion abilities. The micro-particles have been firstly prepared by one-step deposition process. Furthermore, wetting and electrochemical behaviors of as-prepared structures have been investigated after silicone modification. Results show that the fabricated surface possesses excellent superhydrophobicity with a water contact angle (CA) of 154.7° and a sliding angle (SA) of 6.7°. Meanwhile, the resultant surface is proved with enhanced corrosion resistance by reducing interfacial interactions with seawater, owing to newly-generated solid-air-liquid interfaces. This work sheds positive insights into extending applications of Al alloys, especially in oceaneering fields. View Full-Text
Keywords: Al alloy; superhydrophobicity; deposition; corrosion resistance; interfacial interaction Al alloy; superhydrophobicity; deposition; corrosion resistance; interfacial interaction
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MDPI and ACS Style

Shi, T.; Li, X.; Zhang, Q.; Li, B. One-Step Potentiostatic Deposition of Micro-Particles on Al Alloy as Superhydrophobic Surface for Enhanced Corrosion Resistance by Reducing Interfacial Interactions. Coatings 2018, 8, 392.

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