Strain rate sensitivity of Cu with nanoscale twins
نویسندگان
چکیده
The strain-rate sensitivity of ultrafine-crystalline Cu with different concentrations of nanoscale growth twins is investigated using tensile strain rate jump tests. Higher twin density leads to enhanced rate sensitivity, which decreases mildly with increasing strain rate and strain. Mechanisms underlying these effects are explored through post-deformation transmission electron microscopy. 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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