Theory for solutehyphen;vacancy binding energies in binary alloys

摘要

A pseudopotential theory for solutehyphen;vacancy binding energies is derived for binary alloys which includes effects of solutehyphen;solute interactions. Using this approach, small binding energies are calculated for impurityhyphen;vacancy interactions in dilute Alsngbnd;Cu, Alsngbnd;Mg, Alsngbnd;Ag, and Pbsngbnd;In alloys in close agreement with the results of previous highhyphen;temperature equilibrium experiments. Solute clustering is predicted by the model for higher concentrations of solute atoms in aluminum and lead.