Paper Title:
Atomistic Simulations of Copper Precipitation and Radiation Induced Segregation in α-Iron
  Abstract

We present Monte Carlo simulations of the first stages of the coherent precipitation of Cu in α-Fe during thermal ageing and under irradiation. The simulations are based on a diffusion model by vacancy and self-interstitial jumps, the parameters of which are fitted on ab initio calculations. The simulations of precipitation kinetics during thermal ageing are compared with experimental ones. They reveal that precipitates containing up to several tens of atoms can be much more mobile than individual copper atoms, due to the trapping of vacancies in Cu. Monte Carlo simulations are also used to analyze the coupling between fluxes of point defects and Cu which occurs under irradiation and the possible resulting radiation induced segregation phenomena.

  Info
Periodical
Solid State Phenomena (Volume 139)
Edited by
Veena Tikare, Graeme E. Murch, Frédéric Soisson and Jeung Ku Kang
Pages
107-112
DOI
10.4028/www.scientific.net/SSP.139.107
Citation
F. Soisson, C. C. Fu, "Atomistic Simulations of Copper Precipitation and Radiation Induced Segregation in α-Iron", Solid State Phenomena, Vol. 139, pp. 107-112, 2008
Online since
April 2008
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