fabrication of micropillars are examined by introducing a surface layer of nanosized
obstacles into a dislocation dynamics simulation. The influence of the depth and strength of
the obstacles as a function of pillar diameter is assessed parametrically. We show that for a
selected set of sample sizes between 0.5 and 1.0 μ m, the flow strength can increase by 10–
20%, for an obstacle strength of 750 MPa, and damage depth of 100 nm. On the other hand …