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Microstructural Characterization of Materials for Nuclear Applications Using Small‐Angle Neutron Scattering
Author(s) -
Coppola R.,
Fiori F.,
Magnani M.,
Stefa M.
Publication year - 1997
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889897002203
Subject(s) - materials science , martensite , small angle neutron scattering , neutron scattering , carbide , small angle scattering , characterization (materials science) , neutron , microstructure , scattering , nuclear physics , composite material , optics , nanotechnology , physics
The results of a small‐angle neutron scattering (SANS) investigation of microstructural evolution in martensitic steels, developed for use in future fusion reactors, are presented. Specifically, modified martensitic steel DIN 1.4914 (MANET type), subjected to different thermal treatments, was studied. The separate analysis of the size distribution functions determined from the nuclear and magnetic SANS components provides information on the presence of different inhomogeneities: large carbides and very small (~1–nm) C–Cr elementary aggregates. In the latter case, since they are such small particles at the resolution limit of the technique, the general problem of extracting their SANS signal from the background has been addressed.