Early-stage detection of surface stress corrosion cracking at the subgranular level.
Fiche publication
Date publication
juillet 2014
Auteurs
Membres identifiés du Cancéropôle Est :
Pr FINOT Eric
Tous les auteurs :
Clair A, Foucault M, Calonne O, Finot E
Lien Pubmed
Résumé
The strain field at the interface between an alloy and its oxide layer has been mapped using nanopatterned gauges resistant to the environment of the primary nuclear medium. It was found that oxidation has decreased the alloy ductility, thereby enabling some grain boundary opening to be detectable from 1.8% strain. It is shown that statistics of extreme rare events of hotspots quantify the occurrence of the local opening of intergranular cracks, and thereby the ageing process. (c) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Référence
Scr Mater. 2014 Jul 1;82:21-4.