Corrosion behavior of superhydrophobic film fabricated on AZ31B magnesium alloy by one-step immersion process in NaCl aqueous solution

Yuta Shimada, Mika Tsunakawa, Tetsuya Yokomizo, Hoonseung Lee, Takahiro Ishizaki

Research output: Contribution to journalArticle

Abstract

Superhydrophobic film was prepared on magnesium alloy AZ31B by one-step immersion process for 30 min. The solution for immersion process was composed of an aqueous solution containing Ce(NO3)3 and ethanol containing myristic acid. The water contact angle of the prepared film was more than 150 degree and found to be superhydrophobic. The film was composed mainly of crystalline myristic acid. The corrosion behavior of the superhydrophobic film in 5 mass% NaCl aqueous solution were investigated by polarization curve. The corrosion resistance was considerably improved by preparing the superhydrophobic film. In addition, the corrosion process of the superhydrophobic AZ31B was also investigated using XRD, SEM, and water contact angle measurement.

Original languageEnglish
Pages (from-to)57-64
Number of pages8
JournalKeikinzoku/Journal of Japan Institute of Light Metals
Volume68
Issue number2
DOIs
Publication statusPublished - 2018 Jan 1

Keywords

  • Corrosion behavior
  • Immersion process
  • Magnesium alloy
  • Superhydrophobicity

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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