Fabrication of superhydrophobic structure on 5A05 aluminum alloy surface and its corrosion resistance
Document Type
Journal Article
Publication Title
Rare Metal Materials and Engineering
Publisher
Northwest Institute for Nonferrous Metal Research
School
School of Engineering
RAS ID
28372
Abstract
This work developed a simple and low-cost method to achieve superior superhydrophobicity and corrosion resistance of 5A05 Al alloy. The microscale wrinkles covered with nanoscale craters were prepared by a one-step wire electrical discharge machining process. Meanwhile, the wettability and corrosion resistance of the as-prepared structures were investigated after the low-surface-energy modification. The results show that the modified surface exhibits excellent superhydrophobicity with a water contact angle (CA) of 152.7° and a rolling angle (RA) of 7.1°. Furthermore, its corrosion resistance was assessed by electrochemical tests. Ultimately, owing to the trapped air in micro-nano structures, the solid-air-liquid interface helps to resist seawater penetration on the superhydrophobic surface and significantly enhances its corrosion resistance.
DOI
10.1016/S1875-5372(18)30221-2
Access Rights
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Comments
Chuanwei, Z., Xuewu, L., Tian, S., & Laichang, Z. (2018). Fabrication of superhydrophobic structure on 5A05 aluminum alloy surface and its corrosion resistance. Rare Metal Materials and Engineering, 47(10), 2980-2985. Available here