Titre :

Effects of temperature and surface step on the incipient plasticity in strained aluminium studied by atomistic simulations

Auteur(s) :

Hirel, Pierre [Auteur]
Laboratoire de métallurgie physique [LMP [Poitiers]]
Brochard, Sandrine [Auteur]
Laboratoire de métallurgie physique [LMP [Poitiers]]
Pizzagalli, Laurent [Auteur]
Laboratoire de métallurgie physique [LMP [Poitiers]]
Beauchamp, Pierre [Auteur]
Laboratoire de métallurgie physique [LMP [Poitiers]]

Titre de la revue :

Scripta Materialia

Nom court de la revue :

Scripta Materialia

Numéro :

57

Pagination :

1141-1144

Éditeur :

Elsevier BV

Date de publication :

2007-12

ISSN :

1359-6462

Discipline(s) HAL :

Physique [physics]/Matière Condensée [cond-mat]/Autre [cond-mat.other]

Résumé en anglais : [en]

Atomistic simulations using an EAM potential are carried out to investigate the first stages of plasticity in aluminium slabs, in particular the effect of both temperature and step geometry on the nucleation of dislocations ...
Lire la suite >Atomistic simulations using an EAM potential are carried out to investigate the first stages of plasticity in aluminium slabs, in particular the effect of both temperature and step geometry on the nucleation of dislocations from surface steps. Temperature is shown to significantly reduce the elastic limit, and to activate the nucleation of dislocation half-loops. Twinning occurs by successive nucleations in adjacent glide planes. The presence of a kinked step is shown to have no influence on the nucleation mechanisms.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Collections :

• Autres travaux scientifiques

Date de dépôt :

2020-02-21T10:28:46Z
2020-02-21T11:27:15Z
2020-03-17T15:38:52Z