Modelling irradiation-induced softening in BCC iron by crystal plasticity approach
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Abstract
Crystal plasticity model (CPM) for BCC iron to account for radiation-induced strain softening is proposed. CPM is based on the plastically-driven and thermally-activated removal of dislocation loops. Atomistic simulations are applied to parameterize dislocation-defect interactions. Combining experimental microstructures, defect-hardening/absorption rules from atomistic simulations, and CPM fitted to properties of non-irradiated iron, the model achieves a good agreement with experimental data regarding radiation-induced strain softening and flow stress increase under neutron irradiation. © 2015 Elsevier B.V. All rights reserved.
Details
| Original language | English |
|---|---|
| Pages (from-to) | 312-315 |
| Journal | Journal of Nuclear Materials |
| Volume | 466 |
| DOIs | |
| Publication status | Published - 23 Aug 2015 |
Keywords
- Atomistic simulations, Crystal plasticity, Crystal plasticity models, Dislocation defects, Dislocation loop, Radiation-induced, Stress increase, Thermally activated
ID: 3751518