Effects of chromate and chromate conversion coatings on corrosion of aluminum alloy 2024-T3
By Jun Zhao, Lin Xia, A. Sehgal, D. Lu, R. McCreery, Gerald S. Frankel. 2001
226 citations recorded by the source corpus.
Various effects of chromate conversion coatings (CCCs) and chromate in solution on the corrosion of AA2024-T3 and pure Al are studied in this work. Raman spectroscopy was used to investigate the nature of chromate in CCCs through a comparison with the spectra of known standards and artificial Cr(III)/Cr(VI) mixed oxides. Chromate was shown to be released from CCCs and to migrate to and protect a nearby, uncoated area in the artificial scratch cell. However, experiments investigating the effect of chromate in solution on anodic dissolution kinetics under potentiostatic control indicated that large chromate concentrations were needed to have an effect.
Subfields: Civil and Structural Engineering, Materials Chemistry, Metals and Alloys
View Paper: https://www.semanticscholar.org/paper/07e90ff245b2cd9dd0d3c6937f3754bc00b107a7
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
- M. Potin-Gautier
- R. Balasubramaniam
- A. Castetbon
- J. Frayret
- A. Mishra
- Sébastien Pommiers
Citations in the corpus
- Corrosion inhibition of aluminum alloy AA 2014 by rare earth chlorides (2007, background): “Currently, chromates are widely used in anticorrosive pre-treatments of aluminum alloys [1–5].”
- Alternative conversion coatings to chromate for the protection of magnesium alloys (2014, background): “Moreover, Cr(VI) is incorporated into the hydrated Cr(III) oxide layer, creating a covalent Cr(VI)–O–Cr(III) liaison and resulting in a Cr(VI)/Cr(III) mixed oxide [33,34,36].”