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On the rate-controlling mechanism during the plastic deformation of nanocrystalline Cu

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Abstract

Data in the literature on the effect of grain size from micrometers to nanometers on the flow stress, dislocation density, apparent activation volume and strain rate sensitivity parameters for Cu are analyzed to determine the rate-controlling mechanism. Accord occurs for the intersection of dislocations over the entire grain size range from 10 nm to 150 μm. The dislocation density and its structure and the related Friedel factor are important parameters.

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Authors and Affiliations

  1. Materials Science and Engineering Department, North Carolina State University, Raleigh, NC, 27695-7907, USA

    Hans Conrad & Di Yang

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  1. Hans Conrad
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  2. Di Yang
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Correspondence to Hans Conrad.

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Conrad, H., Yang, D. On the rate-controlling mechanism during the plastic deformation of nanocrystalline Cu. J Mater Sci 45, 6166–6169 (2010). https://doi.org/10.1007/s10853-010-4703-1

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  • DOI: https://doi.org/10.1007/s10853-010-4703-1

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