Title: Optimization of Electrolyte Formula of Micro-arc Oxidation for Mg-Gd-Y Magnesium Alloys in Silicate Solutions
Abstract:Micro-arc oxidation(MAO) technique was used to process Mg-9Gd-3Y-0.6Zn-0.5Zr magnesium alloys in silicate system.The surface features and corrosion resistance of the micro-arc oxidation coatings were ...Micro-arc oxidation(MAO) technique was used to process Mg-9Gd-3Y-0.6Zn-0.5Zr magnesium alloys in silicate system.The surface features and corrosion resistance of the micro-arc oxidation coatings were investigated using scanning electron microscopy(SEM),x ray diffraction(XRD) and electrochemical testing methods.The results show that the corrosion resistance of magnesium alloys were improved greatly after MAO treatment.The optimum technological conditions were obtained as follows:20 g/L Na2SiO3,10 mL/L H2O2,20 g/L KF,5 mL/L glycerine.The coating was mainly composed of MgO,Mg2SiO4 and a little MgF2.Read More
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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