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Malleability and plastic anisotropy of iridium and copper

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Abstract

Room-temperature plane-strain compression tests were performed on iridium and copper single crystals with (110) [110] and (110) [001] orientations that represent contrasting flow strengths. Both copper and iridium show plastic anisotropy in agreement with flow theories. At a given shear strain, the shear strengths of copper and iridium are proportional to the elastic shear modulusG calculated for the fcc slip system. The ability of fcc metals to be cleaved appears to be associated with small values of the quotientK/G, whereK is the elastic bulk modulus. It is concluded that the brittleness of iridium is probably inherent.

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Authors and Affiliations

  1. Open University, Oxford, England

    C. N. Reid (Reader)

  2. Argonne National Laboratory, Argonne, Illinois

    J. L. Routbort (Associate Physicist in the Materials Science Division)

Authors
  1. C. N. Reid
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  2. J. L. Routbort
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Formerly with Department of Physical Metallurgy Science of Materials of the University of Birmingham, Birmingham, England

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Reid, C.N., Routbort, J.L. Malleability and plastic anisotropy of iridium and copper. Metall Trans 3, 2257–2260 (1972). https://doi.org/10.1007/BF02643240

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  • DOI: https://doi.org/10.1007/BF02643240

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