Title :

Design of a metallic glass dispersion in pure copper by friction stir processing

Author(s) :

Avettand-Fènoël, Marie-NoËlle [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Netto, N. [Auteur]
Simar, A. [Auteur]
Marinova, Maya [Auteur]
Institut Michel Eugène Chevreul - FR 2638 [IMEC]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Taillard, R. [Auteur]

Journal title :

Journal of Alloys and Compounds

Abbreviated title :

Journal of Alloys and Compounds

Volume number :

907

Pages :

164522

Publisher :

Elsevier BV

Publication date :

2022-06

ISSN :

0925-8388

English keyword(s) :

Copper
Metallic glass reinforcement
Friction stir processing
Phase transformations
Microstructure
Mechanical properties

HAL domain(s) :

Chimie/Matériaux
Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]

English abstract : [en]

Multipass friction stir processing of Fe based metallic glass ribbons interspersed between Cu plates was performed. From the first pass, the process entailed on the one hand the decrease of the Cu mean grain size in the ...
Show more >Multipass friction stir processing of Fe based metallic glass ribbons interspersed between Cu plates was performed. From the first pass, the process entailed on the one hand the decrease of the Cu mean grain size in the nugget by a factor of about 5 and on the other hand the fracture, the refinement and the partial crystallization of the amorphous reinforcement. Cu diffusion also led to marked Cu enrichments in the Fe based metallic glass whose mean Cu content reached 2.7 at%. Beside the metallic glass based reinforcements, some nanometric polycrystalline copper oxides were formed and dispersed within the nugget. The nugget also experienced dynamic recovery and dynamic recrystallization which was in particular favored by the accumulation of dislocations around the reinforcements. Finally, the greater number of passes, the harder the nugget becomes.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS
INRA
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Métallurgie Physique et Génie des Matériaux

Submission date :

2022-03-16T09:37:26Z
2022-03-21T07:55:07Z