Titre :

Modelling the primary damage in Fe and W: Influence of the short range interactions on the cascade properties: Part 1 – Energy transfer

Auteur(s) :

Becquart, Charlotte [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Unité Matériaux et Transformations (UMET) - UMR 8207
De Backer, Andrée [Auteur]
Culham Centre for Fusion Energy [CCFE]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Olsson, Pär [Auteur]
KTH Royal Institute of Technology [Stockholm] [KTH]
Domain, Christophe [Auteur]
Matériaux et Mécanique des Composants [EDF R&D MMC]

Titre de la revue :

Journal of Nuclear Materials

Pagination :

152816

Éditeur :

Elsevier BV

Date de publication :

2021-04-15

ISSN :

0022-3115

Mot(s)-clé(s) en anglais :

Radiation damage
Primary damage
Displacement cascades
Primary knock on atom
Metallic alloys
Empirical potentials
Threshold displacement energies

Discipline(s) HAL :

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

Résumé en anglais : [en]

The primary damage in metallic alloys, i.e. the point defect distribution resulting from the interaction between an energetic particle and a metallic matrix has been investigated for more than 60 years using atomistic ...
Lire la suite >The primary damage in metallic alloys, i.e. the point defect distribution resulting from the interaction between an energetic particle and a metallic matrix has been investigated for more than 60 years using atomistic simulations. The defect distribution produced in cascades is sensitive to the equilibrium part of the potential as well as its hardened part. An analysis based on large statistics of molecular dynamics simulations and comparison with different embedded atom method potentials in Fe and W allows to rationalize the potential behavior. Correlations between static non-equilibrium properties (quasi static drag (QSD)), threshold displacement energies (TDE), replacement collision sequences (RCS) along the 〈110〉 direction have been revealed. Along this direction, the lower the TDE, the lower the QSD and the more energy is transmitted along the 〈110〉 direction during the RCS, i.e. the softest potentials are the ones for which the most energy is transmitted from the PKA to the first head-on atom in the direction of the RCS sequence.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 :

Métallurgie Physique et Génie des Matériaux

Date de dépôt :

2021-03-08T09:21:13Z
2021-03-08T10:15:38Z