J. Mater. Sci. Technol. ›› 2015, Vol. 31 ›› Issue (11): 1139-1143.DOI: 10.1016/j.jmst.2015.09.003

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Fabrication of the Superhydrophobic Surface on Magnesium Alloy and Its Corrosion Resistance

Fen Zhang1, Changlei Zhang1, Liang Song2, Rongchang Zeng1, Shuoqi Li1, Hongzhi Cui1   

  1. 1 College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China; 2 Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
  • Received:2014-12-25
  • Contact: * Corresponding author. Ph.D.; Tel.: +86 532 80662759; Fax: +86 532 86057122.E-mail address: songliang@qibebt.ac.cn (L. Song).
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (No. 21306214), the Applied Basic Research Foundation of Qingdao (No. 13-1-4-217-jch), the Scientific Research Foundation of Shandong for Outstanding Young Scientists (No. BS2013CL009), the Doctoral Program Foundation of the State Education Ministry (No. 20133718120003), and the SDUST Research Fund (No. 2014TDJH104).

Abstract: The superhydrophobic surface was fabricated on the AZ31 alloy by the combination of the hydrothermal treatment method and post modification with stearic acid. The superhydrophobic surface showed a static water contact angle of 157.6°. The characteristics of the coatings were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR). The corrosion resistance of the superhydrophobic coatings was investigated by potentiodynamic polarization test and electrochemical impedance spectroscopy (EIS). The results revealed that the superhydrophobic coatings, characterized by petal-like structure significantly improved the corrosion resistance of the AZ31 alloy.

Key words: Magnesium alloy, Superhydrophobicity, Surface modification, Corrosion