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dc.contributor.authorDavoudi, Kamyar M.
dc.contributor.authorNicola, Lucia
dc.contributor.authorVlassak, Joost J.
dc.date.accessioned2014-05-09T15:52:40Z
dc.date.issued2014
dc.identifier.citationDavoudi, Kamyar M., Lucia Nicola, and Joost J. Vlassak. 2014. “Bauschinger Effect in Thin Metal Films: Discrete Dislocation Dynamics Study.” Journal of Applied Physics 115 (1) (January 7): 013507.en_US
dc.identifier.issn1744-683Xen_US
dc.identifier.issn0021-8979en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:12164712
dc.description.abstractThe effects of dislocation climb on plastic deformation during loading and unloading are studied using a two-dimensional discrete dislocation dynamics model. Simulations are performed for polycrystalline thin films passivated on both surfaces. Dislocation climb lowers the overall level of the stress inside thin films and reduces the work hardening rate. Climb decreases the density of dislocations in pile-ups and reduces back stresses. These factors result in a smaller Bauschinger effect on unloading compared to simulations without climb. As dislocations continue to climb at the onset of unloading and the dislocation density continues to increase, the initial unloading slope increases with decreasing unloading rate. Because climb disperses dislocations, fewer dislocations are annihilated during unloading, leading to a higher dislocation density at the end of the unloading step.en_US
dc.description.sponsorshipEngineering and Applied Sciencesen_US
dc.language.isoen_USen_US
dc.publisherAmerican Institute of Physics (AIP)en_US
dc.relation.isversionofdoi:10.1039/c3sm51617ben_US
dash.licenseLAA
dc.subjectDislocationsen_US
dc.subjectPlasticityen_US
dc.subjectElasticityen_US
dc.subjectPassivationen_US
dc.subjectVacanciesen_US
dc.titleBauschinger effect in thin metal films: Discrete dislocation dynamics studyen_US
dc.typeJournal Articleen_US
dc.description.versionVersion of Recorden_US
dc.relation.journalJournal of Applied Physicsen_US
dash.depositing.authorVlassak, Joost J.
dc.date.available2014-05-09T15:52:40Z
dc.identifier.doi10.1039/c3sm51617b*
dash.contributor.affiliatedVlassak, Joost


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