PPT Slide
The process of cross slip illustrated in Fig 13-2, will serve as an example of dislocation loops.
In Fig. 13-2a a small loop of dislocation line with
is moving on a (111) plane in an fcc crystal.
The dislocation loop is pure positive edge at w and pure negative edge at y.
At x the dislocation is a right-handed screw while at z the dislocation loop is a pure left-handed screw dislocation.