The diffusion kinetics in a concentrated face-centered cubic alloy were described with reference to divacancies. The random alloy model, with bound divacancies, was chosen. It was shown that, for the face-centered cubic structure, the Manning formalism which had been originally developed for monovacancies could be used to describe diffusion via divacancies. The Monte Carlo simulation results for both tracer and collective correlation factors were in good agreement with the results of the formalism for a wide range of component-atom exchange frequencies with the divacancy; except for the slower-moving component.

Kinetics of Diffusion via Divacancies in a Concentrated Random FCC Alloy. I.V.Belova, G.E.Murch: Philosophical Magazine Letters, 2001, 81[2], 101-8