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A Peierls-Nabarro Model for Kink-Pair Generation in Screw Dislocations at Low Temperatures

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Abstract

Kink-pair generation in three-fold screw dislocations in the bcc lattice is investigated within the framework of the generalised Peierls-Nabarro model. Using a piece-wise plane strain approximation, the apparent activation energy is predicted to vary with stress in a parabolic manner which is in good agreement with experimental findings.

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References

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Authors and Affiliations

  1. Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, P.R. China

    A. H. W. Ngan

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  1. A. H. W. Ngan
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Ngan, A.H.W. A Peierls-Nabarro Model for Kink-Pair Generation in Screw Dislocations at Low Temperatures. MRS Online Proceedings Library 538, 113–118 (1998). https://doi.org/10.1557/PROC-538-113

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  • DOI: https://doi.org/10.1557/PROC-538-113

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