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Molecular Dynamics Simulations of Surface Collision Cascades in Nickel

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dc.contributor.authorVoskoboinikov, R. E.
dc.contributor.authorВоскобойников, Роман Евгеньевич
dc.date.accessioned2024-11-25T17:25:59Z
dc.date.available2024-11-25T17:25:59Z
dc.date.issued2020
dc.description.abstract© 2020, Pleiades Publishing, Ltd.Abstract: Collisions cascades initiated by Ni atoms with energies E = 5, 10, 15, and 20 keV on the surface of nickel at temperatures T = 100, 300, 600, 900, and 1200 K were simulated using the molecular dynamics method. To obtain statistically significant values of the number NFP of Frenkel pairs and fractions of vacancies σvac and interstitial atoms σSIA in clusters of point defects as functions of (E, T), representative sampling of 24 collision cascades was generated for all energies of incident particles and irradiation temperatures. It was found that the values of 〈NFP〉, 〈σvac〉, and 〈σSIA〉 averaged over all surface collision cascades with equal (E, T) parameters exceed the corresponding parameters of collision cascades in bulk nickel modeled under identical conditions. Point defects produced in collision cascades on the surface of nickel tend to form clusters. The primary physical mechanism increasing 〈NFP〉, 〈σvac〉, and 〈σSIA〉 in surface cascades is the spatial separation of vacancies and interstitial atoms induced by the elastic interaction of point defects with the free surface.
dc.format.extentС. 7-13
dc.identifier.citationVoskoboinikov, R. E. Molecular Dynamics Simulations of Surface Collision Cascades in Nickel / Voskoboinikov, R.E. // Physics of Metals and Metallography. - 2020. - 121. - № 1. - P. 7-13. - 10.1134/S0031918X20010184
dc.identifier.doi10.1134/S0031918X20010184
dc.identifier.urihttps://www.doi.org/10.1134/S0031918X20010184
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dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000519906100002
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/20472
dc.relation.ispartofPhysics of Metals and Metallography
dc.titleMolecular Dynamics Simulations of Surface Collision Cascades in Nickel
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue1
oaire.citation.volume121
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