A rapid approach to manufacture superhydrophobic coating on magnesium alloy by one-step method

Xiankun Zhang, Jun Shen, Dan Hu, Bin Duan, Chunmin Wang

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

Superhydrophobic and anticorrosion coating was manufactured on magnesium alloy substrate by hydrothermal method. The appearances, compositions and hydrophobicity of coated sample were subjected to X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared spectrophotometer (FT-IR), X-ray diffraction (XRD), Scanning electron microscopy (SEM) and Static contact angle instrument. In addition, the corrosion resistance behavior of the coated samples was examined in 3.5 wt% NaCl solution with electrochemical impedance spectroscopy. In comparison with the bare substrate, the corrosion current density of the superhydrophobic surface decreased by one order of magnitude, which were 7.943 × 10− 5 A/cm2 and 7.943 × 10− 6 A/cm2, respectively. The results confirmed the as-prepared coating not only show a high water contact angle of 161.7 ± 0.8° and a low sliding angle of 4.8 ± 0.9°, but also enhance the corrosion resistance of magnesium substrate in NaCl solution.

Original languageEnglish (US)
Pages (from-to)90-97
Number of pages8
JournalSurface and Coatings Technology
Volume334
DOIs
StatePublished - Jan 25 2018

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Keywords

  • Anticorrosion
  • Hydrothermal method
  • Magnesium alloy
  • Superhydrophobic coating

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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