Facile etching fabrication of superhydrophobic 7055 aluminum alloy surface towards chloride environment anticorrosion

被引：66
作者：
Guo, Fuqiang [1 ]
Duan, Shuwei [1 ]
Wu, Dongting [2 ]
Matsuda, Kenji [3 ]
Wang, Tao [1 ]
Zou, Yong [4 ]
机构：
[1] Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Peoples R China
[2] Shandong Univ, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan 250061, Peoples R China
[3] Univ Toyama, Fac Sustainable Design, Toyama 9308555, Japan
[4] Shandong Univ, Shandong Engn & Technol Res Ctr Modern Welding, Jinan 250061, Peoples R China
来源：
CORROSION SCIENCE | 2021年 / 182卷
关键词：
Aluminum alloy; Superhydrophobic; Etching; Chloride ions; Electrochemical; SUPER-HYDROPHOBIC FILM; CORROSION-RESISTANCE; MECHANICAL PROPERTY; BEHAVIOR; STRENGTH; COATINGS; BARRIER; DESIGN; EXFOLIATION; BOEHMITE;
D O I：
10.1016/j.corsci.2021.109262
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, we prepared a micro-nano hierarchical structure superhydrophobic 7055 aluminum alloy surface. The preparation mechanism, the surface topographies, the wettability, and the chemical compositions were characterized and discussed in detail. Results show that electrolytic polishing (EP) and etching can effectively inhibit the continuous growth of corrosion products and take grains as a unit, which has micron petal-shaped structures with the grain boundary as the boundary. The surface has a great lasting quality and the corrosive ions and liquids can hardly infiltrate the aluminum substrate and avoid the generation of chloride ion channels.
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页数：11
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