dislocation movement in a sentence

1. This helps dislocation movement along grains and across grain boundaries.
2. So, by changing grain size one can influence dislocation movement and yield strength.
3. The carbon atoms in the interstitial sites of the lattice creates a stress field that impedes dislocation movement.
4. The theory remains the same that more grain boundaries create more opposition to dislocation movement and in turn strengthens the material.
5. As the size of the second phase particles increases, the particles impede dislocation movement and it becomes increasingly difficult for the particles to cut through the material.
6. It's difficult to find dislocation movement in a sentence.
7. It is based on the observation that grain boundaries impede dislocation movement and that the number of dislocations within a grain have an effect on how easily dislocations can traverse grain boundaries and travel from grain to grain.
8. where " ? y " is the yield stress, " ? o " is a materials constant for the starting stress for dislocation movement ( or the resistance of the lattice to dislocation motion ), " k y " is the strengthening coefficient ( a constant specific to each material ), and " d " is the average grain diameter.