[Back]

P. Warczok, Y.V. Shan, E. Kozeschnik:
"Lattice Monte Carlo analysis of vacancy diffusion";
Poster: Materials Science and Engineering - MSE 2012, Darmstadt; 2012-09-25 - 2012-09-27.

The lattice Monte Carlo method is a well-established technique for the simulation of solid-state transformation and diffusion processes. In this work, the impact of vacancy-solute binding on diffusion in binary alloys is investigated. The solute atom diffusivity increases monotonically with the vacancy preference toward the solute atom. The vacancy diffusivity is the fastest for the ideal solution case and decreases with the vacancy preference toward any of the alloy component. If the vacancy/trap binding energy is attractive, the impact of trapping on the mobility of vacancies is found to be significant. These observations are taken as a basis for the discussion of the diffusion of atoms and vacancies in binary aluminium systems.

Monte Carlo simulation, vacancy diffusion, solute atom diffusion, aluminium alloys