Résumé. 2014 La décomposition de la matrice 03B2 de l'alliage Ti-10 V-2 Fe-3 Allors de vieillissements à 573 K est étudiée par Microscopie Electronique à Transmission et Sonde Atomique. La combinaison des 2 techniques permet de suivre la formation et l'évolution de la phase 03C9 isotherme ainsi que la précipitation de la phase 03B1 secondaire. Les résultats obtenus conduisent à décrire la décomposition de la matrice 03B2 par un processus non classique en deux étapes.Abstract. 2014 The decomposition of the 03B2 matrix in the Ti-10 V-2 Fe-3 A1 alloy during aging at 573 K is studied by TEM and Atom Probe. The combination of the two techniques allows to follow the formation and the evolution of the isothermal 03C9 phase as well as the precipitation of the secondary 03B1 phase. The 03B2 matrix decomposition is described as a two stage process.
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