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No slip has taken place to the left of AD, and therefore AD is a dislocation line.
Thus, the dislocation line is parallel to its Burgers vector, or slip vector, and by
definition this must be a screw dislocation. Consider the trace of a circuit around
5-8 FORCES ON DISLOCATIONS When an external force of sufficient magnitude
is applied to a crystal, the dislocations move and produce slip. Thus, there is a
force acting on a dislocation line which tends to drive it forward. Figure 5-15 ...
5-16 Forces on a curved dislocation line. 0 ds 1 r to the dislocation line. As a
result, the force on a dislocation is not necessarily in the same direction as the
applied stress. All of the equations for the strain energy of a dislocation in Sec.
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Elements of the Theory of Plasticity
Plastic Deformation of Single Crystals
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