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.
Document type :
Journal articles
Liste complète des métadonnées

https://hal-emse.ccsd.cnrs.fr/emse-00505844
Contributor : Pierre Charles Pinoli <>
Submitted on : Monday, July 26, 2010 - 1:17:56 PM
Last modification on : Thursday, February 7, 2019 - 5:20:23 PM

Identifiers

Citation

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⟩

Share

Metrics

Record views

374