Formation of protective anodic oxides on aluminium by low voltage anodising in sulphuric acid with cerium nitrate and tartaric acid additions

M. Curioni; A. A. Zuleta; E. Correa; X. Pan; A. Baron-Wiechec; P. Skeldon; J. G. Castaño; F. Echeverría; G. E. Thompson

doi:10.1179/0020296712Z.00000000059

Formation of protective anodic oxides on aluminium by low voltage anodising in sulphuric acid with cerium nitrate and tartaric acid additions

M. Curioni^*, A. A. Zuleta, E. Correa, X. Pan, A. Baron-Wiechec, P. Skeldon, J. G. Castaño, F. Echeverría, G. E. Thompson

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

The effects of the anodising potential and of the combined addition of tartaric acid and cerium nitrate to a sulphuric acid anodising bath on the corrosion behaviour of high purity aluminium and on AA2024T3 aerospace aluminium alloy have been systematically investigated. It is found that the anodising potential is critical in determining the anticorrosion performance; lower potential generates finer pores that provide enhanced corrosion protection compared with the larger pores generated at higher potentials. At both anodising potentials, the addition of cerium nitrate alone to the sulphuric acid bath does not increase significantly the anticorrosion performance. Conversely, the addition of tartaric acid alone is generally beneficial. Finally, when cerium nitrate is added in combination with tartaric acid a further improvement of the corrosion resistance is observed.

Original language	English
Pages (from-to)	290-297
Number of pages	8
Journal	Transactions of the Institute of Metal Finishing
Volume	90
Issue number	6
DOIs	https://doi.org/10.1179/0020296712Z.00000000059
State	Published - Nov 2012
Externally published	Yes

Keywords

Aerospace coating
Anodising
Cerium nitrate
Corrosion protection
Energy reduction
TSA

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10.1179/0020296712Z.00000000059

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Curioni, M., Zuleta, A. A., Correa, E., Pan, X., Baron-Wiechec, A., Skeldon, P., Castaño, J. G., Echeverría, F., & Thompson, G. E. (2012). Formation of protective anodic oxides on aluminium by low voltage anodising in sulphuric acid with cerium nitrate and tartaric acid additions. Transactions of the Institute of Metal Finishing, 90(6), 290-297. https://doi.org/10.1179/0020296712Z.00000000059

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title = "Formation of protective anodic oxides on aluminium by low voltage anodising in sulphuric acid with cerium nitrate and tartaric acid additions",

abstract = "The effects of the anodising potential and of the combined addition of tartaric acid and cerium nitrate to a sulphuric acid anodising bath on the corrosion behaviour of high purity aluminium and on AA2024T3 aerospace aluminium alloy have been systematically investigated. It is found that the anodising potential is critical in determining the anticorrosion performance; lower potential generates finer pores that provide enhanced corrosion protection compared with the larger pores generated at higher potentials. At both anodising potentials, the addition of cerium nitrate alone to the sulphuric acid bath does not increase significantly the anticorrosion performance. Conversely, the addition of tartaric acid alone is generally beneficial. Finally, when cerium nitrate is added in combination with tartaric acid a further improvement of the corrosion resistance is observed.",

keywords = "Aerospace coating, Anodising, Cerium nitrate, Corrosion protection, Energy reduction, TSA",

author = "M. Curioni and Zuleta, {A. A.} and E. Correa and X. Pan and A. Baron-Wiechec and P. Skeldon and Casta{\~n}o, {J. G.} and F. Echeverr{\'i}a and Thompson, {G. E.}",

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doi = "10.1179/0020296712Z.00000000059",

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Curioni, M, Zuleta, AA, Correa, E, Pan, X, Baron-Wiechec, A, Skeldon, P, Castaño, JG, Echeverría, F & Thompson, GE 2012, 'Formation of protective anodic oxides on aluminium by low voltage anodising in sulphuric acid with cerium nitrate and tartaric acid additions', Transactions of the Institute of Metal Finishing, vol. 90, no. 6, pp. 290-297. https://doi.org/10.1179/0020296712Z.00000000059

TY - JOUR

T1 - Formation of protective anodic oxides on aluminium by low voltage anodising in sulphuric acid with cerium nitrate and tartaric acid additions

AU - Curioni, M.

AU - Zuleta, A. A.

AU - Correa, E.

AU - Pan, X.

AU - Baron-Wiechec, A.

AU - Skeldon, P.

AU - Castaño, J. G.

AU - Echeverría, F.

AU - Thompson, G. E.

PY - 2012/11

Y1 - 2012/11

N2 - The effects of the anodising potential and of the combined addition of tartaric acid and cerium nitrate to a sulphuric acid anodising bath on the corrosion behaviour of high purity aluminium and on AA2024T3 aerospace aluminium alloy have been systematically investigated. It is found that the anodising potential is critical in determining the anticorrosion performance; lower potential generates finer pores that provide enhanced corrosion protection compared with the larger pores generated at higher potentials. At both anodising potentials, the addition of cerium nitrate alone to the sulphuric acid bath does not increase significantly the anticorrosion performance. Conversely, the addition of tartaric acid alone is generally beneficial. Finally, when cerium nitrate is added in combination with tartaric acid a further improvement of the corrosion resistance is observed.

AB - The effects of the anodising potential and of the combined addition of tartaric acid and cerium nitrate to a sulphuric acid anodising bath on the corrosion behaviour of high purity aluminium and on AA2024T3 aerospace aluminium alloy have been systematically investigated. It is found that the anodising potential is critical in determining the anticorrosion performance; lower potential generates finer pores that provide enhanced corrosion protection compared with the larger pores generated at higher potentials. At both anodising potentials, the addition of cerium nitrate alone to the sulphuric acid bath does not increase significantly the anticorrosion performance. Conversely, the addition of tartaric acid alone is generally beneficial. Finally, when cerium nitrate is added in combination with tartaric acid a further improvement of the corrosion resistance is observed.

KW - Aerospace coating

KW - Anodising

KW - Cerium nitrate

KW - Corrosion protection

KW - Energy reduction

KW - TSA

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DO - 10.1179/0020296712Z.00000000059

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VL - 90

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Formation of protective anodic oxides on aluminium by low voltage anodising in sulphuric acid with cerium nitrate and tartaric acid additions

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