1PPRIME - Institut Pprime (Institut PPRIME : Recherche et Ingénierie en Matériaux, Mécanique et Energétique
SP2MI Téléport 2
Boulevard Pierre et Marie Curie
BP 30179
86962 FUTUROSCOPE CEDEX - France)
Université de Poitiers : UPR3346 (15, rue de l'Hôtel Dieu - 86034 Poitiers Cedex - France)
Abstract : Compression experiments of the brittle MAX phase Ti 2 AlN were performed under confining gas pressure at room temperature. Subsequently, a complete dislocation analysis was performed by transmission electron microscopy. In particular, the Burgers vectors and the dislocation lines were studied via the weak beam technique: dislocation reactions are reported for the first time in a MAX phase, as well as dipole interactions. Footprints of a high lattice friction were also observed. All these features point towards classical dislocation activity, eventually leading to hardening.
https://hal.univ-lorraine.fr/hal-03041046
Contributor : Antoine Guitton <>
Submitted on : Friday, December 4, 2020 - 4:41:00 PM Last modification on : Tuesday, December 8, 2020 - 3:20:28 AM
Antoine Guitton, Anne Joulain, Ludovic Thilly, Christophe Tromas. Dislocation analysis of Ti2AlN deformed at room temperature under confining pressure. Philosophical Magazine, Taylor & Francis, 2012, 92 (36), pp.4536-4546. ⟨10.1080/14786435.2012.715250⟩. ⟨hal-03041046⟩