Study of Micro-Arc Oxidation Process in Magnesium Surface

Abstract:

This study selected sodium silicate, sodium fluoride, glycerol hydroxyl acid, potassium hydroxide and phosphine oxide (LAP) as the stabilizer electrolyte, and then on micro-arc oxidation of magnesium with constant current density. The microstructure, corrosion resistance, chemical composition, structure and characterization of micro-arc oxidation film were determined by SEM and anodic oxidation methods. Experimental results indicated that the test pieces of magnesium would formed an silver-gray uniform densification oxide film on the surface by micro-arc oxidation treatment, and the corrosion resistance of magnesium film-formed had increased by potentiodynamic polarization curve testing.

• Periodical: Applied Mechanics and Materials (Volumes 190-191)
• Pages: 595-598
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.190-191.595
• Online since: July 2012
• Authors: Ze Min Chen, Pin Lu, Qiu Hong Dong
• Keywords: Magnesium, Micro-Arc Oxidation (MAO), Potentiodynamic Polarization

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