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

Fuqiang Guo, Shuwei Duan, Dongting Wu, Kenji Matsuda, Tao Wang*, Yong Zou

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

75 Scopus citations

Abstract

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.

Original languageEnglish
Article number109262
JournalCorrosion Science
Volume182
DOIs
StatePublished - 2021/04/15

Keywords

  • Aluminum alloy
  • Chloride ions
  • Electrochemical
  • Etching
  • Superhydrophobic

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • General Materials Science

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