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Long-term atmospheric corrosion of Cr-free painted aluminum alloys during outdoor worldwide exposures
RISE Research Institutes of Sweden, Materials and Production, Corrosion. (Institut de la Corrosion)ORCID iD: 0000-0001-6175-5579
RISE Research Institutes of Sweden, Materials and Production, Corrosion.ORCID iD: 0000-0001-5462-2700
2023 (English)In: Materials and corrosion - Werkstoffe und Korrosion, ISSN 0947-5117, E-ISSN 1521-4176, Vol. 74, no 7, p. 1022-Article in journal (Refereed) Published
Abstract [en]

Cr-free paints applied on different aluminum alloys were exposed for 5 years at different atmospheric weathering sites worldwide. By image analysis, the extent, and the type of corrosion (filiform or blistering) were determined after 1, 2, and 5 years. In that way, it was possible to rank the different systems as a function of their resistance to corrosion. The kinetics of degradation of each system at all sites was also determined. From the results, it is shown that the kinetics of degradation is system dependent. It is also shown that it is the combination of several climatic parameters which contributes to the corrosivity of the site and not only one single parameter such as chloride deposition, relative humidity, and so on. 

Place, publisher, year, edition, pages
John Wiley and Sons Inc , 2023. Vol. 74, no 7, p. 1022-
Keywords [en]
aluminum alloys, atmospheric corrosion, Cr-free systems, long-term exposure, worldwide, Aluminum corrosion, Atmospheric humidity, Chlorine compounds, Chromium alloys, Corrosion resistance, Climatic parameters, Corrosivity, Cr-free, Cr-free system, Image-analysis, Kinetic of degradations, Long term exposure, Painted aluminiums, Types of corrosions
National Category
Corrosion Engineering
Identifiers
URN: urn:nbn:se:ri:diva-64339DOI: 10.1002/maco.202313753Scopus ID: 2-s2.0-85151451754OAI: oai:DiVA.org:ri-64339DiVA, id: diva2:1752307
Available from: 2023-04-21 Created: 2023-04-21 Last updated: 2023-07-07Bibliographically approved

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Peltier, FabienneThierry, Dominique

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