Interaction of collision cascades with an isolated edge dislocation in aluminium

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dc.contributor.authorVoskoboinikov, REen_AU
dc.date.accessioned2015-11-01T00:55:13Zen_AU
dc.date.available2015-11-01T00:55:13Zen_AU
dc.date.issued2013-05-15en_AU
dc.date.statistics2015-10-22en_AU
dc.descriptionProceedings of the 11th Computer Simulation of Radiation Effects in Solids (COSIRES) Conference Santa Fe, New Mexico, USA, July 24-29, 2012.en_AU
dc.description.abstractThe velocity-Verlet molecular dynamics has been applied to study the radiation damage created in collision cascades in an aluminium crystal harbouring an isolated edge dislocation with 1/2〈110〉 Burgers vector. The total of more than 150 displacement cascades formed by the recoil of primary knock-on atoms with energy EPKA=5keV in crystals at temperatures 100K⩽T⩽600K were simulated. Three different mechanisms of the interaction of collision cascades with edge dislocations in aluminium have been observed. At low and room temperatures the dislocations climb by absorption of displaced atoms from the collision cascade region. Capture of vacancies and displaced atoms by dislocation core at high temperatures leads to dislocation climb up and down. At room and especially at high temperatures dislocation climb by absorbing displaced atoms is accompanied by the formation of stacking fault tetrahedra in the vicinity of the dislocation line. In order to quantify the redistribution of radiation defects, the number of residual vacancies and self-interstitials created in collision cascades near edge dislocations was evaluated and compared with the number of Frenkel pairs formed in collision cascades in the pristine material under the same irradiation conditions. © 2012, Elsevier B.V.en_AU
dc.identifier.citationVoskoboinikov, R. E. (2013). Interaction of collision cascades with an isolated edge dislocation in aluminium. Paper presented at the 11th Computer Simulation of Radiation Effects in Solids (COSIRES) Conference Santa Fe, New Mexico, USA, 24-29 July 2012. In Uberuaga, B. P., Caro, A., & Smith, R. (Eds), Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 303, 125-128. doi:10.1016/j.nimb.2012.10.022en_AU
dc.identifier.conferenceenddate29 July 2012en_AU
dc.identifier.conferencename11th Computer Simulation of Radiation Effects in Solids (COSIRES) Conference Santa Fe.en_AU
dc.identifier.conferenceplaceNew Mexico, USA.en_AU
dc.identifier.conferencestartdate24 July 2012en_AU
dc.identifier.editorsUberuaga, B. P., Caro, A., & Smith, R.en_AU
dc.identifier.govdoc6215en_AU
dc.identifier.issn0168-583Xen_AU
dc.identifier.journaltitleNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atomsen_AU
dc.identifier.pagination125-128en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.nimb.2012.10.022en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/6369en_AU
dc.identifier.volume303en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectCrystalsen_AU
dc.subjectMolecular dynamics methoden_AU
dc.subjectIrradiationen_AU
dc.subjectAtomsen_AU
dc.subjectAluminiumen_AU
dc.subjectStacking faultsen_AU
dc.titleInteraction of collision cascades with an isolated edge dislocation in aluminiumen_AU
dc.typeConference paperen_AU
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