Atomic emission spectroelectrochemical investigation of the anodization of AA7050T74 aluminum alloy

Atomic emission spectroelectrochemistry (AESEC) was used to monitor the dissolution of alloying elements during the anodization process of AA7050-T74 alloy. This technique coupled with metallographic analysis of the alloy lead to the identification of defects formed in the anodized layer due to the...

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Bibliographic Details
Published in:Electrochemistry communications 2011, Vol.13 (1), p.42-45
Main Authors: Mokaddem, M., Tardelli, J., Ogle, K., Rocca, E., Volovitch, P.
Format: Article
Language:English
Subjects:
AESEC
Aluminum alloys
Anodization
Dissolution
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Summary:Atomic emission spectroelectrochemistry (AESEC) was used to monitor the dissolution of alloying elements during the anodization process of AA7050-T74 alloy. This technique coupled with metallographic analysis of the alloy lead to the identification of defects formed in the anodized layer due to the dissolution of strengthening intermetallic compounds (Al 2CuMg and MgZn 2) and coarse compounds (Al 7Cu 2Fe). The rates of the dissolution phenomena were measured independently as a function of the applied voltage.
ISSN:1388-2481
1873-1902
DOI:10.1016/j.elecom.2010.11.008