ABSTRACT
Behaviors of individual grown-in dislocations in edge and 30°-screw orientations emerging on a {111} surface of highly perfect copper crystals have been studied as a function of stress with a refined etch-pit technique. The factors which strongly affect the stress necessary to move the grown-in dislocations and a marked difference in the mobility between the edge and 30°-screw dislocations are shown. A direct measurement of waiting time required for an edge dislocation to jump over an obstacle and an evidence for the conservative motion of large giant-jogs on the grown-in dislocations are also given.
