Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Resistivity Recovery curves of electron-irradiated FeCr alloys with Object Kinetic Monte Carlo: influence of Cr interctions.
Year:2010
Research Areas
  • Mechanical aeronautics and naval engineering
Information
Abstract
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.
International
Si
Congress
19 th Topycal Meeting on the Technology of Fusion Energy. TOFE 2010
960
Place
Las Vegas, USA
Reviewers
Si
ISBN/ISSN
00000000
Start Date
07/11/2010
End Date
11/11/2010
From page
0
To page
0
Libro de Abstracts
Participants
  • Autor: Berta Gamez Mejias (UPM)
  • Autor: M.de Linarejos Gamez Mejias (UPM)
  • Autor: M.J. CATURLA (UNIV. DE ALICANTE)
  • Autor: Jose Manuel Perlado Martin (UPM)
  • Autor: D. TERENTYEV (Structural Materials Group, NMS Inst., SCK-CEN)
  • Autor: L. MALERBA (Structural Materials Group, NMS Inst., SCK-CEN)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión
  • Centro o Instituto I+D+i: Instituto de Fusión Nuclear
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