Neutron diffraction analysis of Cr–Ni–Mo–Ti austenitic steel after cold plastic deformation and fast neutrons irradiation

A quantitative assessment is presented of the dislocation density and relative fractions of edge and screw dislocations in reactor-steel samples 16Cr–15Ni–3Mo–1Ti subjected to preliminary cold deformation by rolling and subsequent fast neutron irradiation using neutron diffraction analysis. The Will...

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Bibliographic Details
Published in:Journal of nuclear materials 2015-04, Vol.459, p.97-102
Main Authors: Voronin, V.I., Valiev, E.Z., Berger, I.F., Goschitskii, B.N., Proskurnina, N.V., Sagaradze, V.V., Kataeva, N.F.
Format: Article
Language:English
Subjects:
Austenitic stainless steels
Deformation
Density
Dislocation density
Fast neutrons
Irradiation
Neutron diffraction
Nuclear engineering
Structural steels
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Summary:A quantitative assessment is presented of the dislocation density and relative fractions of edge and screw dislocations in reactor-steel samples 16Cr–15Ni–3Mo–1Ti subjected to preliminary cold deformation by rolling and subsequent fast neutron irradiation using neutron diffraction analysis. The Williamson–Hall modified method was used for calculations. It is shown that the fast neutron irradiation leads to a decrease in the density of dislocations that appeared after samples deformation. The applicability of neutron diffraction analysis to the examination of dislocation structure of deformed and irradiated materials is shown.
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2014.12.123