Lattice Resistance to Dislocation Motion at the Nanoscale

Simple item page
dc.creatorDutta, A.
dc.creatorBhattacharya, M.
dc.creatorBarat, P.
dc.creatorMukherjee, P.
dc.creatorGayathri, N.
dc.creatorDas, G. C.
dc.date2008-04-28
dc.date2008-08-06
dc.date.accessioned2026-07-07T10:02:21Z
dc.date.available2026-07-07T10:02:21Z
dc.descriptionIn this letter we propose a model that demonstrates the effect of free surface on the lattice resistance experienced by a moving dislocation in nanodimensional systems. This effect manifests in an enhanced velocity of dislocation due to the proximity of the dislocation line to the surface. To verify this finding, molecular dynamics simulations for an edge dislocation in bcc molybdenum are performed and the results are found to be in agreement with the numerical implementations of this model. The reduction in this effect at higher stresses and temperatures, as revealed by the simulations, confirms the role of lattice resistance behind the observed change in the dislocation velocity.
dc.description4 Figures
dc.identifierhttps://arxiv.org/abs/0804.4360
dc.identifierhttp://arxiv.org/abs/0804.4360
dc.identifierPhysical Review Letters 101, 115506 (2008)
dc.identifierdoi:10.1103/PhysRevLett.101.115506
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/168944
dc.subjectMaterials Science
dc.titleLattice Resistance to Dislocation Motion at the Nanoscale
dc.typetext

Files

Collections

arXiv