Anomalous interaction between dislocations and ultra-small voids

Details Anomalous interaction between dislocations and ultra-small voids Anomalous interaction between dislocations and ultra-small voids

2010-03-25

arxiv.org/abs/1003.4945v1

Physics

Condensed Matter

Materials Science

4 figures

Scientific paper

We carry out the molecular statics simulations of depinning of an edge
dislocation at voids of diameters of the order of ~1 nm. We show that the
dislocation-void interactions are non-trivial as the applied shear load is
found to enhance the pinning strength of the nanovoid itself. This leads to the
surprising observation of multiple CRSS values for a given nanovoid.

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