Crimson Publishers Publish With Us Reprints e-Books Video articles


Research & Development in Material Science

In-vitro Biodegradation of Micro-Arc Oxidation on AZ31 Hybridized with Dopamine Compared to Phytic Acid

  • Open or CloseHanaa Soliman1,2*, Sun Mingyao2 and Guojiang Wan2

    1Central Metallurgical Research and Development Institute, Egypt

    2College of Materials Science and Engineering, Southwest Jiaotong University, China

    *Corresponding author:Hanaa Soliman, Central Metallurgical Research and Development Institute, Cairo, Egypt

Submission: April 13, 2020;Published: May 11, 2020

DOI: 10.31031/RDMS.2020.13.000809

ISSN : 2576-8840
Volume13 Issue2


Hybrid coatings composed of the inorganic film; Micro-Arc Oxidized (MAO) and organic film; Dopamine (DOP) or Phytic Acid (PA) was successfully deposited on AZ31. The DOP@MAO@AZ31 film reduced the corrosion current 3-times the MAO film while, the PA@MAO@AZ31presented a slight improvement. Here, the film morphology is the master key for the corrosion resistance enhancement in Simulated Body Fluid (SBF). The Dopamine film supported the MAO inner layer and blocked the porous structure. The Phytic acid transformed the porous MAO layer into a cracked structure to facilitate corrosive ions attack. All experimental outcomes were verified by Scanning Electron Microscope (SEM), Fourier Transform Infrared Spectroscopy (FTIR) and X-ray Diffraction (XRD). The in-vitro corrosion performance was estimated utilizing electrochemical measurements.

Keywords: Micro-arc oxidation; Corrosion resistance; Hybrid coating; Mg

Graphical abstract

(Figure 1)

Figure 1:

Get access to the full text of this article