Memorias de investigación
Ponencias en congresos:
Resistivity Recovery curves of electron-irradiated FeCr alloys with Object Kinetic Monte Carlo: influence of Cr interctions.
Año:2010
Áreas de investigación
  • Ingeniería mecánica, aeronaútica y naval
Datos
Descripción
An Object Kinetic Monte Carlo model is being developed for dilute (less than 1% Cr) FeCr alloys. Starting from a set of parameters for defect energetics in pure Fe that was able to reproduce the resistivity recovery curve of electron irradiated b.c.c. Fe [1], the model is modified to include the effects of Cr on the mobility of radiation defects, using information obtained either from density functional theory or molecular dynamics calculations. This model is then applied to study isochronal annealing after electron irradiation of FeCr alloys varying Cr concentration following the experimental conditions of Abe & Kuramoto [2]. We focus on the recovery stages ID2, IE and II attributed to correlated and uncorrelated recombination between vacancies and self-interstitials and migration of self-interstitial clusters, respectively. In order to reproduce the experimental results, we consider for these dilute alloys the influence of the formation of some Cr species. Also we study the importance of certain parameters, particularly the capture radius between Cr and Fe self-interstitials.
Internacional
Si
Nombre congreso
19 th Topycal Meeting on the Technology of Fusion Energy. TOFE 2010
Tipo de participación
960
Lugar del congreso
Las Vegas, USA
Revisores
Si
ISBN o ISSN
00000000
DOI
Fecha inicio congreso
07/11/2010
Fecha fin congreso
11/11/2010
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Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión
  • Centro o Instituto I+D+i: Instituto de Fusión Nuclear