Role of second phases in the stress corrosion cracking of a nickel–aluminium bronze in saline water

Abstract : We investigated the role of second phases in the stress corrosion cracking of a complex copper–aluminium alloy CuAl9Ni3Fe2. We conducted slow strain rate tensile tests in synthetic sea water. Cracking is mainly intergranular. The crack path is determined by the electrochemical interactions between the α matrix and the second phases. We observe the selective dissolution of the aluminium rich areas that are anodic with respect to the α matrix. Under cathodic polarisation, the detrimental effect on mechanical properties is enhanced. The number of cracks is reduced. Crack blunting by dissolution is impeded.
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Corrosion Science, Elsevier, 2005, 47 (11), pp.2792-2806. 〈10.1016/j.corsci.2004.09.025〉
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https://hal-emse.ccsd.cnrs.fr/emse-00505844
Contributeur : Pierre Charles Pinoli <>
Soumis le : lundi 26 juillet 2010 - 13:17:56
Dernière modification le : jeudi 11 janvier 2018 - 06:15:39

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Stéphanie Fonlupt, Bernard Bayle, David Delafosse, Jean-Loup Heuze. Role of second phases in the stress corrosion cracking of a nickel–aluminium bronze in saline water. Corrosion Science, Elsevier, 2005, 47 (11), pp.2792-2806. 〈10.1016/j.corsci.2004.09.025〉. 〈emse-00505844〉

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