@article {5205,
	title = {Surface effects in chromate conversion coatings on 2024-T3 aluminum alloy},
	journal = {Journal of Materials Science},
	volume = {36},
	number = {13},
	year = {2001},
	note = {ISI Document Delivery No.: 443DLTimes Cited: 17Cited Reference Count: 28},
	month = {Jul},
	pages = {3215-3220},
	type = {Article},
	abstract = {Chromate conversion coatings formed on samples of 2024-T3 aluminum alloy, which had been given different pre-treatments, were examined by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and corrosion tests. Two pre-treatments were considered, namely a simple mechanical polish, and polishing followed by an etch in a HF-H2SO4 solution. The latter treatment leads to significant Cu enrichment at the oxide-alloy interface, and this in turn can lead to a deleterious effect on the corrosion protection afforded by a subsequently applied chromate coating. Discussions are given of the behaviour of Cu in the coating formed on the sample that received an acid etch in the pre-treatment. This involves both migration through the coating and a non-uniform redeposition of Cu on to the coating surface. By contrast, the sample that initially was given just the mechanical polish in the pre-treatment does not show a Cu enrichment in the surface region, and the subsequently applied coating appeared stable after a 24 h immersion in a NaCl test solution. (C) 2001 Kluwer Academic Publishers.},
	keywords = {COPPER IONS, CU ALLOY, FILMS, GROWTH, MECHANISM, mobility},
	isbn = {0022-2461},
	url = {<Go to ISI>://000169325100017},
	author = {Sun, X. and Li, R. and Wong, K. C. and Mitchell, K. A. R. and Foster, T.}
}
