Characterization of microstructure and texture of binary Mg-Ce alloy processed by equal channel angular pressing - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Materials Characterization Année : 2021

Characterization of microstructure and texture of binary Mg-Ce alloy processed by equal channel angular pressing

Résumé

The characterization of microstructure and texture development of binary Mg-0.3Ce (wt.%) after equal-channel angular pressing (ECAP) processing via route Bc at 300 and 350 °C through 4 passes were investigated using electron backscatter diffraction (EBSD) measurements. The results demonstrated an effective grain refinement from millimeter range to 6.7 and 8.3 µm obtained after 4 passes at 300 and 350 °C, respectively. The grain refinement was obtained through dynamic recrystallization (DRX). At 300°C, DRX occurred at low strain by twininduced dynamic recrystallization (TDRX) and particle stimulated nucleation (PSN) mechanism and then converted with increasing strain to sub-grain development (SD) and grain boundary bulging dynamic recrystallization (GBBDRX). Besides, grain growth occurred during processing at 350 °C. The texture development strongly depends on the strain level, deformation temperature and DRX mechanisms. At 300 °C, a typical basal texture with a deviation of 40° toward extrusion direction was formed gradually up to 4 passes while a completely different texture was formed at 350 °C due to the large grain size.
Fichier principal
Vignette du fichier
Saadi et al 2021.pdf (3.59 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03413879 , version 1 (04-11-2021)

Identifiants

Citer

Salaheddine Sadi, Abdelkader Hanna, Hiba Azzeddine, Casimir Casas, Thierry Baudin, et al.. Characterization of microstructure and texture of binary Mg-Ce alloy processed by equal channel angular pressing. Materials Characterization, 2021, 181, pp.111454. ⟨10.1016/j.matchar.2021.111454⟩. ⟨hal-03413879⟩
13 Consultations
92 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More