The most significant aspects of the plastic behaviour of bcc metals are the above-mentioned features that can be associated with properties of dislocation cores.
This mechanism may resolve an old discrepancy between low-temperature flow stress and the Peierls stress.
Dislocations are central to the understanding of mechanical properties of crystalline solids.
Continuum elasticity theory describes well the long-range elastic strain of a dislocation for length.
The core is also responsible for the interaction of dislocations at close distances, which is relevant to plastic deformation.
Recent computer simulation results pertaining to the behavior of the dislocation core under stress have prompted a reevaluation of the concept of force on a dislocation.
with due consideration of relevant experimental results