On the atomic model of Guinier-Preston ...
Type de document :
Article dans une revue scientifique
URL permanente :
Titre :
On the atomic model of Guinier-Preston zones in Al-Mg-Si-Cu alloys
Auteur(s) :
Liu, Siliang [Auteur]
Li, Kai [Auteur]
Lu, Jiangbo [Auteur]
Sha, Gang [Auteur]
Wang, Jianchuan [Auteur]
Yang, Mingjun [Auteur]
Ji, Gang [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Song, Min [Auteur]
Wang, Jiong [Auteur]
Du, Yong [Auteur]
Li, Kai [Auteur]
Lu, Jiangbo [Auteur]
Sha, Gang [Auteur]
Wang, Jianchuan [Auteur]
Yang, Mingjun [Auteur]
Ji, Gang [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Song, Min [Auteur]
Wang, Jiong [Auteur]
Du, Yong [Auteur]
Titre de la revue :
Journal of Alloys and Compounds
Numéro :
745
Pagination :
644-650
Date de publication :
2018
Discipline(s) HAL :
Chimie/Matériaux
Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
Résumé en anglais : [en]
Structural feature of equiaxed Guinier-Preston zones with the diameter of ∼2 nm in an Al-Mg-Si-Cu alloy has been systematically investigated by three-dimensional atom probe analyses, high-resolution electron microscopy and ...
Lire la suite >Structural feature of equiaxed Guinier-Preston zones with the diameter of ∼2 nm in an Al-Mg-Si-Cu alloy has been systematically investigated by three-dimensional atom probe analyses, high-resolution electron microscopy and first-principles calculations. The results suggest that Si and Mg planes alternate along [001]Al with Cu atoms diversely substituting for some Si sites. An fcc-based Mg1(Si,Cu)1 model was then proposed for the first time, with expanded a, b and compressed c lattice parameters compared to Al. Meanwhile the structural evolution of Mg1(Si,Cu)1 → (Mg,Cu)1(Si,Cu)1 → β″-(Mg,Cu)1Mg4(Al,Cu)2Si4 is suggested.Lire moins >
Lire la suite >Structural feature of equiaxed Guinier-Preston zones with the diameter of ∼2 nm in an Al-Mg-Si-Cu alloy has been systematically investigated by three-dimensional atom probe analyses, high-resolution electron microscopy and first-principles calculations. The results suggest that Si and Mg planes alternate along [001]Al with Cu atoms diversely substituting for some Si sites. An fcc-based Mg1(Si,Cu)1 model was then proposed for the first time, with expanded a, b and compressed c lattice parameters compared to Al. Meanwhile the structural evolution of Mg1(Si,Cu)1 → (Mg,Cu)1(Si,Cu)1 → β″-(Mg,Cu)1Mg4(Al,Cu)2Si4 is suggested.Lire moins >
Langue :
Anglais
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
Université de Lille
ENSCL
CNRS
INRA
ENSCL
CNRS
INRA
Collections :
Équipe(s) de recherche :
Métallurgie Physique et Génie des Matériaux
Date de dépôt :
2019-05-16T17:22:05Z
2019-10-24T15:07:38Z
2019-10-24T15:07:38Z