Titre :

Design and development of large-diameter Mg-Zn-Ca bulk metallic glass for biomedical applications: A mechanical and corrosion perspective

Auteur(s) :

Kumari Rajendran, Rajesh [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Aggarwal, Divyanshu [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Bonvalet Rolland, Manon [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
GRUESCU, Cosmin [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Shabadi, Rajashekhara [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207

Titre de la revue :

Intermetallics

Nom court de la revue :

Intermetallics

Numéro :

175

Pagination :

108520

Éditeur :

Elsevier

Date de publication :

2024-12

ISSN :

0966-9795

Mot(s)-clé(s) en anglais :

Bulk metallic glasses
MgZnCa
Casting
Microstructure
Corrosion

Discipline(s) HAL :

Chimie/Matériaux
Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
Sciences du Vivant [q-bio]/Ingénierie des aliments
Sciences du Vivant [q-bio]/Biochimie, Biologie Moléculaire

Résumé en anglais : [en]

Being amorphous, bulk metallic glasses (BMGs) exhibit superior properties compared to their crystalline alloy counterparts. Amorphous materials are preferred for their excellent mechanical and degradation behavior. Among ...
Lire la suite >Being amorphous, bulk metallic glasses (BMGs) exhibit superior properties compared to their crystalline alloy counterparts. Amorphous materials are preferred for their excellent mechanical and degradation behavior. Among the various elemental combinations, MgZnCa has shown the most promising results, as evidenced by the literature. However, the maximum achievable size of the metallic glasses remains a bottleneck. The current work aims to address this challenge and achieve it splendidly with a systematic methodology by developing larger diameter MgZnCa BMGs through vacuum induction casting using a specially designed copper mold. The optimal composition was formalized for glass formation of the Mg65Zn31Ca4 system using the CALPHAD technique. As a result, a 6.5 mm diameter glassy alloy was successfully obtained. The XRD and TEM analysis experiments demonstrated a perfect amorphous structure of the developed sample. The anti-corrosion properties of the as-cast glass increased, followed by enhancement in the yield strength and hardness in contrast to the properties of the human bone. Furthermore, the surface wettability analysis showed an adequate surface obtained to promote fibroblast adhesion. In conclusion, the current work represents a notable progress in the fabrication of larger-diameter MgZnCa BMG for biomedical applications, considering that the biggest diameter ever reported in the MgZnCa system was more than a decade ago.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS
INRAE
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Équipe(s) de recherche :

Métallurgie Physique et Génie des Matériaux
Processus aux Interfaces et Hygiène des Matériaux (PIHM)

Date de dépôt :

2025-03-14T14:34:52Z
2025-03-14T16:13:50Z
2025-03-14T16:15:16Z