OATAO - Open Archive Toulouse Archive Ouverte Open Access Week

Intergranular Corrosion of 2024 Alloy in Chloride Solutions

Augustin, Christel and Andrieu, Eric and Blanc, Christine and Mankowski, Georges and Delfosse, Jérôme Intergranular Corrosion of 2024 Alloy in Chloride Solutions. (2007) Journal of The Electrochemical Society (JES), vol. 154 (n° 11). C637-C644. ISSN 0013-4651

[img]
Preview
(Document in English)

PDF (Author's version ) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
590kB

Official URL: http://dx.doi.org/10.1149/1.2778224

Abstract

Experiments were performed to determine the propagation kinetics of intergranular corrosion on 2024 aluminum alloy immersed in 1 and 3 M chloride solutions. Tests consisting of immersion in a corrosive solution followed by optical observations on sectioned samples were carried out. This method was found to be time consuming and led to a lack of reproducibility due to the random nature of the corrosion attacks. Another method proved to be more efficient; it consisted of measuring the load to failure on precorroded tensile specimens vs preimmersion time in an aggressive environment. This method was found to allow the mean depth of the corrosion defects to be determined. Further, in 1 and 3 M chloride solution, intergranular corrosion led to the formation of a nonbearing zone, the thickness of which was equal to the mean depth of the corrosion defects. This corroded zone explained the premature failure of the specimens when a uniaxial tensile stress was applied.

Item Type:Article
Additional Information:Thanks to Electrochemical Society editor. The definitive version is available at http://www.scitation.aip.org The original PDF of the article can be found at Journal of The Electrochemical Society website : http://www.ecsdl.org/JES/
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > EADS N.V. (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
Laboratory name:
Statistics:download
Deposited By: Celine Cabaup
Deposited On:05 May 2009 08:06

Repository Staff Only: item control page