Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7987678 | Nuclear Materials and Energy | 2016 | 6 Pages |
Abstract
This work explores the effects of both temperature and dose-rate on the nanostructural evolution under irradiation of the Fe-9%CrC alloy, model material for high-Cr ferritic/martensitic steels. Starting from an object kinetic Monte Carlo model validated at 563 K, we investigate here the accumulation of radiation damage as a function of temperature and dose-rate, attempting to highlight its connection with low-temperature radiation-induced hardening. The results show that the defect cluster mobility becomes high enough to partially counteract the material hardening process only above â¼290 °C, while high fluxes are responsible for higher densities of defects, so that an increase of the hardening process with increasing dose-rates may be expected.
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Nuclear Energy and Engineering
Authors
M. Chiapetto, C.S. Becquart, L. Malerba,