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Amorphization and shear microbands near grain boundaries in mechanically alloyed metallic materials

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Abstract

A theoretical model which effectively describes a novel micromechanism of solid-state amorphization in mechanically alloyed metallic materials is proposed. Within the model the amorphous phase nucleates as a result of the intersection of a grain boundary by a plastic-shear microband. It is shown that the growth of a nucleus of the amorphous α-β alloy near a site on a grain boundary intersected by a shear microband is effectively controlled by the rate of diffusion mixing of atoms of the mechanically alloyed metals α and β.

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Authors and Affiliations

  1. Institute of Mechanical-Engineering Problems, Russian Academy of Sciences, 199178, St. Petersburg, Russia

    I. A. Ovid’ko & A. V. Osipov

Authors
  1. I. A. Ovid’ko
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  2. A. V. Osipov
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Zh. Tekh. Fiz. 67, 35–38 (July 1997)

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Ovid’ko, I.A., Osipov, A.V. Amorphization and shear microbands near grain boundaries in mechanically alloyed metallic materials. Tech. Phys. 42, 748–751 (1997). https://doi.org/10.1134/1.1258712

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  • DOI: https://doi.org/10.1134/1.1258712

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