Outdoor Corrosion Performance of Anodized and Electrolytically Coloured Aluminium for Architectural Use
- 1 January 1975
- journal article
- research article
- Published by Taylor & Francis in Transactions of the IMF
- Vol. 53 (1) , 28-32
- https://doi.org/10.1080/00202967.1975.11870334
Abstract
The corrosion resistance of light alloy semi-fabricated aluminium (Al 99·5 sheet and AGS extrusions), anodized and electrolytically coloured with nickel and copper salts, is studied. Results obtained after 38 months exposure in marine and industrial atmospheres have outlined the very good behaviour of films coloured with nickel salts and the less good performance of those coloured in black with copper salts, in particular when the sealing is not perfect. The paper also shows excellent correlation between the exposure at test sites, the CASS accelerated corrosion test results and the admittance values of the oxide layers, the last named permitting fairly accurate prediction of service behaviour.Keywords
This publication has 1 reference indexed in Scilit:
- The Electrolytic Colouring of Anodized AluminiumTransactions of the IMF, 1974