The probability of the diffusion of vacancies away from faulted loops was calculated using the diffusion equation of vacancies under the effects of the permanent sinks. It was found that the probability increased with decreasing density of jogs on faulted loops and with distance from the faulted loop to the grain boundary. It decreased with decreasing void density. The annihilation processes of faulted loops in quenched aluminum were studied experimentally, and it was shown that the experimental results could be easily explained on the basis that the shrinkage speed of the faulted loop was proportional to the product of the emission rate and the probability of diffusion of vacancies away from the faulted loop. From the shrinkage rate of faulted loops in a thin foil, the stacking-fault energy was estimated to be 130mJ/m2.

Annihilation of Faulted Dislocation Loops in Quenched Aluminum. H.Murakami, S.Yoshida: Journal of the Physical Society of Japan, 1971, 36, 1339-48