Suppression of irradiation swelling through an impurity-point defect trapping mechanism involving reduction of the dislocation bias factor

Abstract

The reduction of void growth through the addition of alloying elements generally is attributed to a point defect trapping mechanism that alters profoundly the annealing kinetics of the mutual annihilation of point defects and the migration of point defects to dislocation and void sinks. Another mechanism by which alloying atoms might be able to reduce void growth is through changes in the dislocation bias factor. In this paper it is shown by means of a greatly simplified analysis that alteration of the dislocation bias factor can produce a void growth reduction as large or larger than that produced through changes in the annealing kinetics. © 1981.