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Based on recent progress in the thermodynamics of migrating interfaces, the contact conditions (equilibrium concentrations and deviations thereof) at a solid/liquid interface during rapid solidification are modelled numerically. Possible interface concentrations are calculated as a function of interface velocity. Two processes are assumed to dissipate Gibbs Free Energy: the migration of the interface...
In an extension of a recently developed model [M. Buchmann, M. Rettenmayr, Scripta Mater. 57 (2007) 169] non-equilibrium transients during solidification of a binary metal alloy are studied. Interface velocity and interface concentrations are calculated during the transient towards interface equilibrium in an undercooled alloy. The rigorously derived model includes realistic free energies and real...
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