Intra granular precipitation and grain boundary segregation under neutron irradiation in a low purity Fe–Cr based alloy - Normandie Université Access content directly
Journal Articles Journal of Nuclear Materials Year : 2012

Intra granular precipitation and grain boundary segregation under neutron irradiation in a low purity Fe–Cr based alloy

Abstract

A nanoscale description of intra- and inter-granular segregation and precipitation in a Fe–12 at.%Cr model alloy of low purity after neutron irradiation at 300 °C up to 0.6 dpa, has been performed owing to Atom Probe Tomography (APT). Two different populations of clusters have been observed inside the grains: Cr-enriched and NiSiPCr-enriched clusters. As expected with a process of enhanced precipitation, Cr-enriched clusters are homogeneously distributed inside grains. The NiSiPCr-enriched clusters, which are probably formed by radiation induced segregations, are independent of the Cr-enriched clusters. Investigation of a low angle grain boundary has revealed Si, Cr and P segregation on the dislocation network.
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hal-02107385 , version 1 (23-04-2019)

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V. Kuksenko, Cristelle Pareige, Philippe Pareige. Intra granular precipitation and grain boundary segregation under neutron irradiation in a low purity Fe–Cr based alloy. Journal of Nuclear Materials, 2012, 425 (1-3), pp.125-129. ⟨10.1016/j.jnucmat.2011.10.031⟩. ⟨hal-02107385⟩
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