期刊
SURFACE & COATINGS TECHNOLOGY
卷 169, 期 -, 页码 143-146出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/S0257-8972(03)00214-7
关键词
magnesium alloy; anodizing; alkaline solution; corrosion resistance
The electrochemical behaviors of 99.95 mass% magnesium and its alloys, i.e. AZ31 and AZ91, were investigated in NaOH alkaline solution. Mg and Mg alloy specimens were anodized for 10 min at 3, 10 and 80 V in 1 mol/dm(3) NaOH alkaline solution. The films anodized at 3 V on Mg and Mg alloys had the best effective corrosion resistance and these films consisted of comparatively thick magnesium hydroxide. Corrosion resistances of the films anodized at 80 V on Mg and Mg alloys were higher than those at 10 V and lower than those at 3 V, from results of the anodic polarization measurement in 0.1 mass% NaCl solution. (C) 2003 Elsevier Science B.V All rights reserved.
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