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Strain rate and oxidation effects on crack initiation at 600 and 650 °C in a nickel-based superalloy

Perrais, Maxime and Seror, Alexandre and Burteau, A. and Andrieu, Eric and Poquillon, Dominique Strain rate and oxidation effects on crack initiation at 600 and 650 °C in a nickel-based superalloy. (2016) Materials at High Temperatures, 33 (3). 241-247. ISSN 0960-3409

(Document in English)

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Official URL: http://dx.doi.org/10.1080/09603409.2016.1169665


Nickel-based superalloys are sensitive to an oxidation-assisted intergranular crack (OAIC) growth mechanism. Crack initiation during slow strain rate tensile tests is investigated at 600 and 650 °C, at different strain rates, with or without oxidation on a direct-aged material. A V-shaped sample geometry is used to promote damage initiation for a specific stress triaxiality. The critical mechanical loading paths inducing intergranular crack initiation as well as the effect of oxidation are discussed.

Item Type:Article
Additional Information:Thanks to Taylor & Francis editor. The original PDF of the article can be found at https://www.tandfonline.com/doi/full/10.1080/09603409.2016.1169665
HAL Id:hal-01755241
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Turbomeca (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > SAFRAN (FRANCE)
Laboratory name:
Deposited On:30 Mar 2018 12:53

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