Failure mode and interface chemistry of localized coatings on brass |
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Authors: | J E Castle Z B Luklinska M S Parvizi |
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Affiliation: | (1) Department of Metallurgy and Materials Technology, University of Surrey, Guildford, UK |
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Abstract: | The behaviour of partly coated aluminium brass has been examined under accelerated laboratory and under natural conditions. Acrylic (Incralac) coatings are found to have a good life and to provide a long-term protection of brass surfaces. Analysis of failed interfaces by photoelectron spectroscopy showed that acidic conditions developed beneath the coating and contributed to a partial weakening of the bond strength. Eventually the crevice conditions drift back towards neutral and there is little further loss of strength. |
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