The influence of artificial ageing on the corrosion behaviour of a 2050 aluminium–copper–lithium alloy

Vincent Proton,Joël Alexis,Eric Andrieu,Jérôme Delfosse,Alexis Deschamps,Frédéric De Geuser,Marie-Christine Lafont,Christine Blanc

doi:10.1016/j.corsci.2013.11.060

The influence of artificial ageing on the corrosion behaviour of a 2050 aluminium–copper–lithium alloy

Vincent Proton, Joël Alexis + Show 6 more

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https://doi.org/10.1016/j.corsci.2013.11.060

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Journal: Corrosion Science	Publication Date: Dec 9, 2013
Citations: 136	License type: other-oa

Affiliation: Université de Toulouse, Interuniversity Center of Materials Research and Engineering, National Polytechnic Institute of Toulouse, Université Toulouse III - Paul Sabatier, French National Centre for Scientific Research, Laboratoire Génie de Production, Grenoble Institute of Technology, Science et Ingénierie des Matériaux et Procédés, Joseph Fourier University, Université Grenoble Alpes

#Influence Of Artificial Ageing #Chloride-containing Solutions + Show 8 more

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Abstract

The influence of artificial ageing on the corrosion behaviour of the recently developed 2050 Al–Cu–Li aluminium alloy in chloride-containing solutions was studied. Corrosion tests showed that artificial ageing changed the corrosion morphology of the alloy from intergranular to intragranular and decreased the corrosion potential of the alloy. Transmission electron microscopy observations combined with small-angle X-ray scattering measurements were used to establish a link between the distribution of T1 precipitates and the corrosion behaviour.

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