Dislocation bias factors in fcc copper derived from atomistic calculations

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Abstract

Atomistic calculations were employed in order to calculate the interaction energy of an edge dislocation with different point defects. The bias factor was calculated by applying a finite element method on the interaction energy landscapes obtained from the atomistic calculations. A comparison of the calculated bias factor with a model based on elasticity theory reveals around 30% discrepancy under conditions representative for electron irradiation at 600 °C. Possible reasons are discussed. The bias factor dependence on dislocation density and ambient temperature is presented and discussed.

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Original languageEnglish
Pages (from-to)357-363
JournalJournal of Nuclear Materials
Volume441
Issue number1-3
DOIs
Publication statusPublished - Oct 2013

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