Interaction of loops with Carbon atoms and dislocations in BCC Fe: An atomistic study

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Abstract

We apply atomistic simulations using the so called ‘metallic-covalent bonding’ interatomic model for the Fe–C system to study mobility of interstitial dislocation loops, known to form in Fe and Fe-based ferritic alloys under irradiation, and their interaction with Carbon atoms. Carbon atoms represent an effective trap for the loops with a binding energy of the order of 1 eV. The mobility of the loops is studied using the dislocation – loop drag model. From this model the activation parameters are identified and discussed.

Details

Original languageEnglish
Pages (from-to)9-15
JournalJournal of Nuclear Materials
Volume420
Issue number1-3
DOIs
Publication statusPublished - 16 Sep 2011

Keywords

  • dislocation loops, radiation damage

ID: 268503