Evaluation of Interactions between a Dislocation and Imperfections Using a Continuously Distributed Dislocation Model

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  • Mifune Tsuyoshi
    Department of Chemical Engineering and Material Sciences, College of Engineering Wayne State University
  • Meshii Masahiro
    Department of Materials Science, The Technological Institute Northwestern University

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  • Evaluation of interaction between a dislocation and imperfections using a continuously distributed dislocation model

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Abstract

Interactions between a dislocation and other imperfections were re-evaluated using a continuously distributed dislocation model. Dislocations and a misfit defect were chosen as typical examples of imperfections. The use of a continuously distributed dislocation model avoids the singularity problem that arises in classical dislocation theory, and thus it always yields a finite magnitude for the interaction. Therefore, the use of a continuously distributed dislocation model enables the evaluation of the magnitude of the interaction near the core of a dislocation where the classical singular dislocation model becomes impossible to apply.

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