Title :

A quantitative strategy for achieving the high thermal conductivity of die-cast Mg-Al-based alloys

Author(s) :

Dong, Xixi [Auteur]
Brunel University London [Uxbridge]
Feng, Lingyun [Auteur]
Brunel University London [Uxbridge]
Wang, Shihao [Auteur]
Brunel University London [Uxbridge]
Wang, Feng [Auteur]
University of Birmingham [Birmingham]
Ghasemi, Rohollah [Auteur]
Ji, Gang [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Nyberg, Eric A. [Auteur]
Ji, Shouxun [Auteur]
Brunel University London [Uxbridge]

Journal title :

Materialia

Abbreviated title :

Materialia

Volume number :

22

Pages :

101426

Publisher :

Elsevier BV

Publication date :

2022-05

ISSN :

2589-1529

English keyword(s) :

Magnesium alloys
Thermal conductivity
Microstructure
Mechanical property
Casting

HAL domain(s) :

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

English abstract : [en]

A quantitative strategy was reported to design and develop Mg-Al-based alloys to achieve high thermal conductivity, in which the specific RE elements can be introduced to reduce the Al concentration in Mg matrix and to ...
Show more >A quantitative strategy was reported to design and develop Mg-Al-based alloys to achieve high thermal conductivity, in which the specific RE elements can be introduced to reduce the Al concentration in Mg matrix and to suppress the formation of Mg17Al12 phase through the formation of new intermetallic phases. Based on quantitative calculations, the strategy was demonstrated by a novel die-cast Mg3.2Al4.4La0.4Nd (in wt.%) alloy, which provided the thermal conductivity of 114.3 W/(m∙K) at ambient temperature and 137.5 W/(m∙K) at 300 °C, ∼25% higher than the commercial Mg4Al4RE (AE44) alloy. Meanwhile, the alloy also offered excellent ambient yield strength of 143.2 MPa and elongation of 8.2%, and superior strength and ductility than the AE44 alloy at elevated temperatures.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS
INRAE
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Métallurgie Physique et Génie des Matériaux

Submission date :

2022-11-03T00:27:04Z
2022-11-04T09:17:11Z