Title of article
Preparation of MgO coatings on magnesium alloys for corrosion protection
Author/Authors
Lei، نويسنده , , Ting and Ouyang، نويسنده , , Chun and Tang، نويسنده , , Wei and Li، نويسنده , , Lian-Feng and Zhou، نويسنده , , R. Leshan، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2010
Pages
6
From page
3798
To page
3803
Abstract
MgO coating is formed on magnesium alloy by anodic electrodeposition in 6 M KOH solution, whereas Mg(OH)2 coating is produced by anodization in 10 M KOH solution, which could be successively converted to MgO by calcination in air at 450 °C. The evolution of morphology, structure and composition of anodic film obtained on Mg alloy is investigated using scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDX) and X-ray diffraction (XRD). Potentiodynamic polarization measurements show that the as-grown MgO protective coatings are very effective in improving the corrosion resistance of magnesium alloy compared to bare metallic magnesium.
Keywords
Alkaline solution , CORROSION RESISTANCE , Magnesium alloy , Anodization , Oxide coatings
Journal title
Surface and Coatings Technology
Serial Year
2010
Journal title
Surface and Coatings Technology
Record number
1822755
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