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Comparison of strain hardening in polycrystals and <111> single crystals: The example of copper

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Abstract

Tests on copper single crystals oriented about 2 deg from <111> were in agreement with earlier work on similar crystals. Comparison to polycrystals using the Taylor factor showed agreement only for large-grained material. Literature data for single crystals in plane strain compression also agreed only with large-grained copper strain hardening curves. These results suggest that grain size strengthening occurs which is not accounted for in the Taylor analysis. It is therefore concluded that polycrystal strain hardening in copper is not simply a Taylor-averaged single crystal process.

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Authors and Affiliations

  1. Science Center, Rockwell International Thousand Oaks, 91360, Calif.

    Anthony W. Thompson

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  1. Anthony W. Thompson
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Formerly with Sandia Laboratories, Livermore, Calif.

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Thompson, A.W. Comparison of strain hardening in polycrystals and <111> single crystals: The example of copper. Metall Trans 5, 39–42 (1974). https://doi.org/10.1007/BF02642923

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