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Pure climb of [001] dislocations in TiAl at 850 °C

Naanani, Soumaya and Monchoux, Jean-Philippe and Mabru, Catherine and Couret, Alain Pure climb of [001] dislocations in TiAl at 850 °C. (2018) Scripta Materialia, 149. 53-57. ISSN 1359-6462

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Official URL: https://doi.org/10.1016/j.scriptamat.2018.02.002


This paper presents a study by Transmission Electron Miscroscopy of the deformation microstructure in the γ phase of a TiAl alloy crept at 850 °C under 150 MPa. A never observed population of dislocations is evidenced and characterized. It is shown that their Burgers vector is of [001] type and that they are moving by pure climb in the (001) planes. The reasons of the presence of these dislocations are discussed

Item Type:Article
HAL Id:hal-01829956
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Ecole nationale supérieure des Mines d'Albi-Carmaux - IMT Mines Albi (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Deposited On:04 Jul 2018 12:22

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