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THE STUDY OF THE CORROSION RESISTANCEOF THE CERAMIC COATINGS FORMED BY MICRO-ARCOXIDATION ON THE Mg-BASE ALLOY |
Bailing Jiang;Shufen Zhang;Guojian Wu |
西安理工大学材料科学与工程学院 |
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Abstract The corrosion of the ceramic coatings formed by mi cro-arc oxidation on a magnesium alloy was investigated by salt spray tests.The results indicated that the corrosion-resistance of the coating prepared in mixe d salt solution was best.The difference of the corrosion-resistance between the ceramic coating formed by micro-arc oxidation and the chromate conversion coat ing and sealing mechanism were analyzed by SEM.The results indicated the corros ion-resistance of coatings obtained by micro-arc oxidation was far better than t hat treated by chromate.The corrosion-resistance of the coating after sealing by paraffin was improved significantly.
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Received: 06 July 2001
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Corresponding Authors:
Bailing Jiang
E-mail: zhangxf_1020.student@sina.com
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