Effect of low levels of sulphate on the current density and film morphology during anodizing of aluminium in chromic acid

Previous work has shown that a low level of sulphate impurity in chromic acid can significantly change the growth rate and the morphology of porous anodic films formed on aluminium at a constant voltage. The changes were associated with incorporation of sulphate into the films. The present study emp...

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Bibliographic Details

Published in:	Electrochimica Acta
Main Authors:	D. Elabar, Teruo Hashimoto, Jiantao Qi, P. Skeldon, G. E. Thompson
Format:	Article
Language:	English
Published:	Elsevier BV 2016
Subjects:	Anodic Oxide Films and Nanostructures Corrosion Behavior and Inhibition Hydrogen embrittlement and corrosion behaviors in metals anodic aluminum oxide chromic acid electrolyte porous anodic oxide films film morphology current density pore size sulfate incorporation depletion region
Online Access:	https://www.sciencedirect.com/science/article/pii/S0013468616302493/pdf https://doi.org/10.1016/j.electacta.2016.01.230
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