Grain boundary segregation in low Cr Fe-Cr alloys: The effect of radiation induced vacancies studied by Metropolis Monte Carlo simulations

Abstract

Radiation damage may modify the segregation state and phase separation conditions in Fe-Cr alloys with compositions and temperatures of technological interest. We use Metropolis Monte Carlo simulations to study segregation effects at the best stable variant of the Sigma = 5 (2 1 0) grain boundary, in the 5-10 at.% range of Cr composition.

The role of irradiation induced vacancies in segregation is discussed.

Keywords

• Fe–Cr alloys
• grain boundary
• Cr segregation
• vacancies
• Metropolis Monte-Carlo