Abstract
The defect microstructures in a series of neutron-irradiated Fe-Cu binary alloys (0 – 0.86 at % Cu) and reactor pressure vessel steels (> 0.1 wt% Cu) have been investigated using magnetic and nuclear small angle neutron scattering (SANS) and transmission electron microscopy (TEM). Specimens were irradiated in the FRG-2 reactor in Geesthacht to fluences > 1023 n/m2 at 290 °C. Under these conditions, the defect microstructures in the irradiated binary alloys could be analyzed using both SANS and TEM, and consist of distributions of Cu precipitates, voids, and interstitial loops; in the steels, for which only SANS could be applied, the scattering data and the post-irradiation annealing behaviour appear to be consistent with a defect microstructure consisting of Cu-rich precipitates and voids, at least in steels containing > 0.1 wt% Cu.KeywordsSmall Angle Neutron ScatteringVoid Volume FractionDefect MicrostructureMagnetic ScatteringMagnetic HoleThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Published Version
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