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

10 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

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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