The vacancy-edge dislocation interaction in fcc metals: A comparison between atomic simulations and elasticity theory
E. Clouet. Acta Materialia, 54 (13):
3543 - 3552(2006)Selected Papers from the Meeting "Micromechanics and Microstructure Evolution: Modeling, Simulation and Experiments" held in Madrid/Spain, 11-16 September 2005.
DOI: 10.1016/j.actamat.2006.03.043
Abstract
The interaction between vacancies and edge dislocations in face centered cubic metals (Al, Au, Cu, Ni) is studied at different length scales. Using empirical potentials and static relaxation, atomic simulations give us a precise description of this interaction, mostly in the case when the separation distance between both defects is small. At larger distances, elasticity theory can be used to predict this interaction. From the comparison between both approaches we obtain the minimal separation distance where elasticity applies and we estimate the degree of refinement required in the calculation. In this purpose, isotropic and anisotropic elasticity is used assuming a perfect or a dissociated edge dislocation and considering the size effect as well as the inhomogeneity interaction.
Description
ScienceDirect - Acta Materialia : The vacancy–edge dislocation interaction in fcc metals: A comparison between atomic simulations and elasticity theory
Selected Papers from the Meeting "Micromechanics and Microstructure Evolution: Modeling, Simulation and Experiments" held in Madrid/Spain, 11-16 September 2005
%0 Journal Article
%1 Clouet20063543
%A Clouet, Emmanuel
%D 2006
%J Acta Materialia
%K atomistics ssh
%N 13
%P 3543 - 3552
%R 10.1016/j.actamat.2006.03.043
%T The vacancy-edge dislocation interaction in fcc metals: A comparison between atomic simulations and elasticity theory
%U http://www.sciencedirect.com/science/article/B6TW8-4K4WN3D-1/2/8ac250f6565c844dfa1e2248f0959677
%V 54
%X The interaction between vacancies and edge dislocations in face centered cubic metals (Al, Au, Cu, Ni) is studied at different length scales. Using empirical potentials and static relaxation, atomic simulations give us a precise description of this interaction, mostly in the case when the separation distance between both defects is small. At larger distances, elasticity theory can be used to predict this interaction. From the comparison between both approaches we obtain the minimal separation distance where elasticity applies and we estimate the degree of refinement required in the calculation. In this purpose, isotropic and anisotropic elasticity is used assuming a perfect or a dissociated edge dislocation and considering the size effect as well as the inhomogeneity interaction.
@article{Clouet20063543,
abstract = {The interaction between vacancies and edge dislocations in face centered cubic metals (Al, Au, Cu, Ni) is studied at different length scales. Using empirical potentials and static relaxation, atomic simulations give us a precise description of this interaction, mostly in the case when the separation distance between both defects is small. At larger distances, elasticity theory can be used to predict this interaction. From the comparison between both approaches we obtain the minimal separation distance where elasticity applies and we estimate the degree of refinement required in the calculation. In this purpose, isotropic and anisotropic elasticity is used assuming a perfect or a dissociated edge dislocation and considering the size effect as well as the inhomogeneity interaction.},
added-at = {2010-11-25T14:13:21.000+0100},
author = {Clouet, Emmanuel},
biburl = {https://www.bibsonomy.org/bibtex/25534b7b33fcf1869b30a64e3ef022517/riche.ma},
description = {ScienceDirect - Acta Materialia : The vacancy–edge dislocation interaction in fcc metals: A comparison between atomic simulations and elasticity theory},
doi = {10.1016/j.actamat.2006.03.043},
interhash = {5720de41cc2186f658094c313d896b3d},
intrahash = {5534b7b33fcf1869b30a64e3ef022517},
issn = {1359-6454},
journal = {Acta Materialia},
keywords = {atomistics ssh},
note = {Selected Papers from the Meeting "Micromechanics and Microstructure Evolution: Modeling, Simulation and Experiments" held in Madrid/Spain, 11-16 September 2005},
number = 13,
pages = {3543 - 3552},
timestamp = {2010-11-25T14:13:21.000+0100},
title = {The vacancy-edge dislocation interaction in fcc metals: A comparison between atomic simulations and elasticity theory},
url = {http://www.sciencedirect.com/science/article/B6TW8-4K4WN3D-1/2/8ac250f6565c844dfa1e2248f0959677},
volume = 54,
year = 2006
}