Please use this identifier to cite or link to this item: https://apo.ansto.gov.au/dspace/handle/10238/6370
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dc.contributor.authorVoskoboinikov, RE-
dc.date.accessioned2015-11-01T00:58:14Z-
dc.date.available2015-11-01T00:58:14Z-
dc.date.issued2015-05-15-
dc.identifier.citationVoskoboinikov, R. E. (2013). MD simulations of collision cascades in the vicinity of a screw dislocation in aluminium. Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms, 303, 104-107. doi:10.1016/j.nimb.2013.01.021en_AU
dc.identifier.govdoc6216-
dc.identifier.issn0168-583X-
dc.identifier.urihttp://dx.doi.org/10.1016/j.nimb.2013.01.021en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/6370-
dc.description.abstractMolecular dynamics has been applied to study the interaction of collision cascades with 1=2h110i screw dislocations in aluminium. Primary knock-on atoms (PKA) with energy EPKA ¼ 5 keV were initiated in Al crystals at temperatures ranging from 100 K to 600 K at different distances from the dislocation line. Capture of the displaced atoms from the collision cascade region by the dislocation core has been observed at all simulation temperatures and led to the formation of a helical dislocation segment. Apart from that, in the material subjected to external loading a displacement cascade in the vicinity of a screw dislocation can trigger dislocation cross-slip. Under applied stress the dislocation unpins from the helical segment with the formation of a mobile dislocation loop with 1=2h110i Burgers vector. The number of residual vacancies and self-interstitial atoms produced in collision cascades near 1=2h110i screw dislocations is evaluated and compared with the number of Frenkel pairs formed in collision cascades in the pristine material under the same irradiation conditions. © 2013 Elsevier B.V.en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectMolecular dynamics methoden_AU
dc.subjectAluminiumen_AU
dc.subjectDamageen_AU
dc.subjectIrradiationen_AU
dc.subjectScrew dislocationsen_AU
dc.subjectVelocityen_AU
dc.titleMD simulations of collision cascades in the vicinity of a screw dislocation in aluminiumen_AU
dc.typeJournal Articleen_AU
dc.date.statistics2015-10-22-
Appears in Collections:Journal Articles

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