Transfer of molecular dynamics data to dislocation dynamics to assess dislocation–dislocation loop interaction in iron

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Abstract

We propose a computationally fast and physically justifiable method to treat dislocation loops as stochastic thermally activated finite-size obstacles in discrete dislocation dynamics simulations. The method was parameterized using molecular dynamics data for the interaction of dislocations with a0/2〈1 1 1〉 dislocation loops. As demonstration, the method is applied to rationalize experimental hardening of neutron-irradiated iron. The obtained results show good agreement with experimental data.

Details

Original languageEnglish
Pages (from-to)578-581
JournalScripta Materialia
Volume69
Issue number8
DOIs
Publication statusPublished - Oct 2013

Keywords

  • Metals, Dislocation loops, Hardening, Molecular Dynamics

ID: 329293