Abstract
Neutron irradiation produces evolving nanostructural defects in materials, that affect their macroscopic
properties. Defect production and evolution is expected to be influenced by the chemical composition of
the material. In turn, the accumulation of defects in the material results in microchemical changes, which
may induce further changes in macroscopic properties. In this work we review the results of recent
atomic-level simulations conducted in Fe–Cr alloys, as model materials for high-Cr ferritic–martensitic
steels, to address the following questions: 1. Is the primary damage produced in displacement cascades
influenced by the Cr content? If so, how? 2. Does Cr change the stability of radiation-produced defects? 3.
Is the diffusivity of cascade-produced defects changed by Cr content? 4. How do Cr atoms redistribute
under irradiation inside the material under the action of thermodynamic driving forces and radiationdefect
fluxes?
Details
Original language | English |
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Pages (from-to) | 486-498 |
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Journal | Journal of Nuclear Materials |
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Volume | 442 |
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Issue number | 1-3 |
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DOIs | |
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Publication status | Published - 26 Oct 2013 |
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