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Journal of Materials Engineering and Performance

Erschienen in:

01.07.2012

Corrosion Behavior of Magnesium Alloy AP65 in 3.5% Sodium Chloride Solution

verfasst von: Nai-guang Wang, Ri-chu Wang, Chao-qun Peng, Yan Feng

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 7/2012

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Abstract

Magnesium alloy AP65 was prepared by melting and casting. The corrosion behavior of the as-cast and solid solution (T4)-treated AP65 alloys in 3.5% sodium chloride solution was investigated by corrosion morphology observation, immersion test, and electrochemical measurements. The results show that the second phase Mg₁₇Al₁₂ surrounded by a lead-enriched area distributes discontinuously along the grain boundaries in the as-cast AP65 alloy. The lead-enriched areas with high activity are susceptible to be attacked during immersion test and can act as places for preferential anodic dissolution. The corrosion resistance of the as-cast AP65 alloy can be improved after T4 treatment and the T4-treated alloy suffers general corrosion.

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Titel: Corrosion Behavior of Magnesium Alloy AP65 in 3.5% Sodium Chloride Solution
verfasst von: Nai-guang Wang
Ri-chu Wang
Chao-qun Peng
Yan Feng
Publikationsdatum: 01.07.2012
Verlag: Springer US
Erschienen in: Journal of Materials Engineering and Performance / Ausgabe 7/2012
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-011-0035-9

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