Titre :

Processing and Characterization of a Mechanically Alloyed and Hot Press Sintered High Entropy Alloy from the Al-Cr-Fe-Mn-Mo Family

Auteur(s) :

Stasiak, Tomasz [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Sow, Mourtada-Aly [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Addad, Ahmed [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Touzin, Matthieu [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
béclin, franck [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
CORDIER, Catherine [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207

Titre de la revue :

JOM

Nom court de la revue :

JOM

Éditeur :

Springer Science and Business Media LLC

Date de publication :

2022-01-05

ISSN :

1543-1851

Discipline(s) HAL :

Chimie/Matériaux

Résumé en anglais : [en]

In this study, a novel high entropy alloy from the Al-Cr-Fe-Mn-Mo family was successfully prepared by mechanical alloying followed by hot press sintering. The samples were investigated by x-ray diffraction, electron ...
Lire la suite >In this study, a novel high entropy alloy from the Al-Cr-Fe-Mn-Mo family was successfully prepared by mechanical alloying followed by hot press sintering. The samples were investigated by x-ray diffraction, electron backscatter diffraction, and scanning and transmission electron microscopy. The sintered samples consist of a unique new multielement body-centered cubic solid solution (more than 98 vol.%). Moreover, it is shown that, by controlling the processing conditions, it is possible to limit the formation of carbides and oxides, which are common when using powder metallurgy processing routes. The mechanical properties were investigated by micro-indentation and compression tests from room temperature up to 800°C. The results showed high micro-hardness up to 950 HV1N. The hot compression results revealed promising mechanical properties, especially at high temperatures, e.g., at 600°C, the yield strength was 1022 MPa, the maximum compressive stress was 1327 MPa, and the strain at failure was 21.8%.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS
INRA
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Équipe(s) de recherche :

Métallurgie Physique et Génie des Matériaux

Date de dépôt :

2022-01-06T14:14:22Z
2022-01-06T14:31:04Z
2022-01-12T09:27:27Z