Vacancy Annihilation to Non-Uniformly Distributed Dislocations in Quenched Aluminum

Annealing profiles of vacancies in zone-refined aluminum were studied by electrical resistance measurement after quenching, and discussed under either assumption of uniform distribution of dislocations or non-uniform one. The annealing curves calculated for the non-uniform distribution of dislocations, using E m 1 =0.65 eV, E m 2 =0.50 eV and B 2 =0.17 eV, show the excellent fit to the experimental annealing curves. It is suggested from such an analysis that the annealing experiment should be made on the specimen with a controlled dislocation density and configuration in order to clarify the fundamental properties of point defects in metals.