Title of article
Effects of chromate and chromate conversion coatings on corrosion of aluminum alloy 2024-T3
Author/Authors
Zhao، نويسنده , , J. and Xia، نويسنده , , L. and Sehgal، نويسنده , , A. and Lu، نويسنده , , D. and McCreery، نويسنده , , R.L. and Frankel، نويسنده , , G.S.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2001
Pages
7
From page
51
To page
57
Abstract
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.
Keywords
Conversion coating , chromate , Corrosion , aluminum
Journal title
Surface and Coatings Technology
Serial Year
2001
Journal title
Surface and Coatings Technology
Record number
1801103
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