Plasticity Initiation and Evolution during Nanoindentation of an Iron–3% Silicon Crystal
Authors:
- 11 April 2014
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 112 (14) , 145504
Abstract
Our investigations confirm that the collective, avalanchelike dislocation nucleation and multiplication is responsible for the pop-in event in a body-centered-cubic Fe\char21{}3% Si single crystal. Dislocation was not observed prior to pop-in but was apparent after the event. We find that a transition from an initial stage dominated by discrete dislocation nucleation to subsequent continuum plasticity occurs just after the pop-in event as elastoplastic deformation ensues.Keywords
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