Title :

Multiscale investigation of the crystallization mechanisms and solute redistribution during annealing of a Fe64B24Y4Nb6Al0.4 metallic glass

Author(s) :

Avettand-Fènoël, Marie-Noëlle [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Sauvage, Xavier [Auteur]
Groupe de physique des matériaux [GPM]
Université de Rouen Normandie [UNIROUEN]
Marinova, Maya [Auteur]
Institut Chevreul - FR2638
Addad, Ahmed [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207

Journal title :

Journal of Alloys and Compounds

Abbreviated title :

Journal of Alloys and Compounds

Volume number :

887

Pages :

161264

Publisher :

Elsevier BV

Publication date :

2021-12

ISSN :

0925-8388

English keyword(s) :

A. Fe based metallic glass
Primary crystallization
Atom probe tomography
D. transmission electron microscopy
D. X-ray diffractometry

HAL domain(s) :

Chimie/Matériaux

English abstract : [en]

The mechanisms and the sequence of crystallization of a Fe64B24Y4Nb6Al0.4 metallic glass were investigated experimentally. To this end, the microstructure of the metallic glass after interrupted isothermal treatments at a ...
Show more >The mechanisms and the sequence of crystallization of a Fe64B24Y4Nb6Al0.4 metallic glass were investigated experimentally. To this end, the microstructure of the metallic glass after interrupted isothermal treatments at a temperature between glass transition and primary crystallization was studied by complementary techniques, namely atom probe tomography, transmission electron microscopy and X-ray diffractometry. During the early stages of crystallization of the glass, some nanometric (Fe,Nb)B crystals nucleate first by rejecting Y at their interface, which hinders their growth. The Fe62B14Y3 dendritic phase starts growing in a second step. Longer annealings lead to the development of chemical gradients in the amorphous matrix surrounding Fe62B14Y3 crystals, which favors the nucleation of additional nanometric (Fe,Nb)2.4B crystals.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

Submission date :

2021-08-30T10:26:57Z
2021-09-01T06:21:16Z