Elastoplastic model for the dynamics of solid-solid transformations : role of non-affine deformation in microstructure selection

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dc.creatorBhattacharya, Jayee
dc.creatorPaul, Arya
dc.creatorSengupta, Surajit
dc.creatorRao, Madan
dc.date2007-06-22
dc.date2008-03-01
dc.date.accessioned2026-07-07T09:23:51Z
dc.date.available2026-07-07T09:23:51Z
dc.descriptionWe study the nucleation dynamics of a model solid state transformation and the criterion for microstructure selection using a molecular dynamics (MD) simulation. Our simulations show a range of microstructures depending on the depth of quench. We closely follow the dynamics of the solid and find that transient {\em non-affine zones} (NAZ) are created at and evolve with the rapidly moving transformation front. The dynamics of these plastic regions determines the selection of microstructure. We formulate an {\it elastoplastic model} which couples the elastic strain to the non-affine deformation, and recover all the qualitative features of the MD simulation. Using this model, we construct a dynamical phase diagram for microstructure selection, in addition to making definite testable predictions.
dc.description18 pages 15 (eps) figures incorporated several referee comments
dc.identifierhttps://arxiv.org/abs/0706.3321
dc.identifierhttp://arxiv.org/abs/0706.3321
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/155888
dc.subjectMaterials Science
dc.titleElastoplastic model for the dynamics of solid-solid transformations : role of non-affine deformation in microstructure selection
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