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Atomic Structure Calculations of the Interaction Between Lattice Dislocations and Grain Boundaries

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Abstract

The interaction between screw dislocations and [1 1 0] symmetric tilt boundaries is investigated by atomistic calculations. In order to study the differences between fcc and ordered alloys and to study the effect of increasing ordering tendency, many-body potentials representing Cu, Cu3Au and Ni3Al were used. For the ordered alloys, the different possible ordering configurations of the boundaries that were studied are discussed.

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Acknowledgements

This work is part of the research program of the Foundation forFundamental Research on Matter (F.O.M.-Utrecht) and has been made possible by financial support from the Netherlands Organization for Research (N.W.O.-The Hague). A support of the National Science Foundation, MRL Program under Grant no. DMR88-19885 (VV) is acknowledged.

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Authors and Affiliations

  1. Department of Applied Physics, Materials Science Centre, University of Groningen, Nijenborgh 18, 9747 AG, Groningen, The Netherlands

    B. J. Pestman & J. Th. M. De Hosson

  2. Department of Materials Science & Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA

    V. Vitek

  3. Department of Metallurgy, Technological University of Delft, Rotterdamseweg 137, 2628 AL, Delft, The Netherlands

    F. W. Schapink

Authors
  1. B. J. Pestman
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  2. J. Th. M. De Hosson
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  3. V. Vitek
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  4. F. W. Schapink
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Pestman, B.J., De Hosson, J.T.M., Vitek, V. et al. Atomic Structure Calculations of the Interaction Between Lattice Dislocations and Grain Boundaries. MRS Online Proceedings Library 193, 205–210 (1990). https://doi.org/10.1557/PROC-193-205

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  • DOI: https://doi.org/10.1557/PROC-193-205

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