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Micro Arc Oxidation of Wire Arc Sprayed Al-Mg6, Al-Si12, Al Coatings on Low Alloyed Steel
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Abstract
Micro arc oxidation of wire arc sprayed Al-Mg6, Al-Si12 and Pure Al coatings on low carbon steel has been performed. The coatings have been analyzed using optic microscope, scanning electron microscopy, X-ray diffraction and surface roughness tester. At the same time, voltage and current regimes are investigated during the process. Then after MAO process, uniform Al<sub>2</sub>O<sub>3</sub> ceramic coatings have been deposited on surface of Al-Mg6, Al-Si12 and Al coated steel. The ceramic coatings are mainly composed of Al<sub>2</sub>O<sub>3</sub> phase. The compound coatings show high hardness and significant improvement of corrosion resistance property.
KeywordsMicro Arc OxidationPlasma Electrolytic OxidationArc SprayAISI 1010 SteelMAOPEOSEMXRD
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