Dislocation bias factors in fcc copper derived from atomistic calculations

Zhongwen Chang, Pär Olsson, Dmitry Terentyev, Nils Sanderberg, Giovanni Bonny

    Research outputpeer-review


    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.
    Original languageEnglish
    Pages (from-to)357-363
    JournalJournal of Nuclear Materials
    Issue number1-3
    StatePublished - Oct 2013

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