Titre :

A new criterion for glass-forming ability based on both devitrification and solidification processes

Auteur(s) :

Li, Zijing [Auteur]
Yanshan University [Qinhuangdao]
Wang, Ji [Auteur]
Yanshan University [Qinhuangdao]
Pan, Shaopeng [Auteur]
Taiyuan University of Technology
Affouard, Frédéric [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Zhang, Suhong [Auteur]
Yanshan University [Qinhuangdao]
Feng, Shidong [Auteur]
Yanshan University [Qinhuangdao]
Liu, Yingdan [Auteur]
Yanshan University [Qinhuangdao]
Wang, Li-min [Auteur]
Yanshan University [Qinhuangdao]

Titre de la revue :

Intermetallics

Numéro :

136

Pagination :

107264

Éditeur :

Elsevier BV

Date de publication :

2021-09

ISSN :

0966-9795

Mot(s)-clé(s) en anglais :

Glass forming ability
Metallic glass
Time-temperature-transformation

Discipline(s) HAL :

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

Résumé en anglais : [en]

Based on the time-temperature-transformation interpretation, a new criterion for glass forming ability, Z = [(Tx-Tg)/(Tl-Tg)][(Tl–Tl(c))/(Tl-Tg)]0.556, is proposed, where Tg, Tx, Tl and Tl(c) respectively denote the glass ...
Lire la suite >Based on the time-temperature-transformation interpretation, a new criterion for glass forming ability, Z = [(Tx-Tg)/(Tl-Tg)][(Tl–Tl(c))/(Tl-Tg)]0.556, is proposed, where Tg, Tx, Tl and Tl(c) respectively denote the glass transition temperature, the onset crystallization temperature upon heating, the liquidus temperature and the onset solidification temperature of the liquid upon cooling. The Z parameter jointly considers the stability of the liquid and the devitrification of glassy phases. A non-linear relationship between the parameter Z and the critical glassy size dc has been found to be log (dc)cal = 0.1392 + 17.0616Z - 41.985(Z)2, showing stronger correlation than other earlier reported parameters. The advantage of using Z as a GFA parameter is that it roughly reflects the relative influences of the thermodynamics and kinetics of the systems on glass formation. In addition, the parameter describes the stability of liquid in the course of being quenched from above liquidus temperature.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 :

Matériaux Moléculaires et Thérapeutiques

Date de dépôt :

2021-11-16T16:00:28Z
2021-11-19T10:36:31Z