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Evolution of interfacial dislocation network during anisothermal high-temperature creep of a nickel-based superalloy

Hantcherli, Muriel and Pettinari-Sturmel, Florence and Viguier, Bernard and Douin, Joël and Coujou, Armand Evolution of interfacial dislocation network during anisothermal high-temperature creep of a nickel-based superalloy. (2011) Scripta Materialia, vol. 66 (n° 3 - 4). pp. 143-146. ISSN 1359-6462

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Official URL: http://dx.doi.org/10.1016/j.scriptamat.2011.10.022

Abstract

The effect of thermal cycling creep on the dislocation networks at the γ/γ′ interfaces in the MC2 superalloy is investigated. Tensile creep tests were performed under thermal cycling and isothermal conditions at low stress (80 MPa) and high temperature (1150 °C). In these conditions γ′ rafts may dissolve and reprecipitate during thermal cycling creep. The difference between the effects of isothermal and thermal cycling conditions on the γ/γ′ interface dislocation networks, characterized by transmission electron microscopy, is exposed, as well as their evolution during the cycle.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The original version is available at http://www.sciencedirect.com The original PDF of the article can be found at Scripta Materialia website: http://www.sciencedirect.com/science/article/pii/S1359646211006129
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
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Deposited By:Denis Faragou

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