Cu precipitation in electron-irradiated iron alloys for spent-fuel canisters

Research output: Contribution to journalArticlepeer-review

Authors

  • Qigui Yang
  • Zhongwen Chang
  • Luca Messina
  • Nils Sandberg
  • Nicolas Castin
  • Amine Yousfi
  • Elin Toijer
  • Mattias Thuvander
  • Bruno Boizot
  • Vincent Metayer
  • Dominique Gorse-Pomonti
  • Pâr Olsson

Institutes & Expert groups

  • KTH - Royal Institute of Technology
  • CEA Cadarache - Commissariat à l'Énergie Atomique
  • Swedish Radiation Safety Authority
  • RISE - Research Institute of Sweden
  • Chalmers University of Technology
  • CEA Saclay - Commissariat à l'énergie atomique
  • École polytechnique
  • UU - Uppsala University

Documents & links

Abstract

In this work, the Cu clustering in Fe under irradiation is investigated using experiments, cluster dynamics and atomistic kinetic Monte Carlo (AKMC) simulations. In experiments, cast iron and model FeCu alloy samples were irradiated with 2 MeV electrons for 143 h at 140 °C. The post-irradiation microstructure was characterized using atom probe tomography. Cluster dynamics and AKMC methods were used to simulate the Cu clustering under the same irradiation conditions. Both simulation methods show satisfactory agreement with experiments, lending strength to the validity of the models. Finally, the Cu clustering in spent-fuel repository conditions for 105 years at 100 °C was simulated using both methods. The results indicate that potential hardening by Cu clustering is insignificant over 105 years.

Details

Original languageEnglish
Article number154038
Pages (from-to)1-10
Number of pages10
JournalJournal of Nuclear Materials
Volume572
DOIs
Publication statusPublished - 15 Dec 2022

Keywords

  • Monte Carlo (AKMC), Irradiation, Spent fuels, Binary alloys, Copper alloys, Fe-Cu alloys, Kinetic Monte Carlo methods

ID: 8168951