Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1502680 | Scripta Materialia | 2009 | 4 Pages |
Abstract
The low-cycle fatigue behaviour of a nickel-based superalloy has been investigated with regard to its surface damage features. This alloy endures localized plastic deformation confined in slip bands emerging as extrusions. The correlations between damage, grain orientation, the Schmid factor of slip systems and the height of extrusions have been questioned. It is proved here that reaching a critical height value is not a sufficient condition for an extrusion to induce the apparition of a transgranular crack.
Keywords
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
M. Risbet, X. Feaugas, C. Guillemer-Neel, M. Clavel,