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Pinning of grain boundaries by deformable particles

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Abstract

Interaction between a grain boundary and deformable particles has been modeled. It is shown that deformable particles pin the grain boundaries more effectively than rigid spherical particles. The required driving force to unpin a grain boundary increases with decreasing the interphase energy of the deformable particle. Deformable particles also reduce the rate of grain-boundary migration more effectively than rigid spherical particles. The rate of grain boundary migration decreases with the interphase energy of the deformable particle. The model allows the shape of a deformable particle to be determined as the particle is dragged by a grain boundary. The particle shape allows prediction of the force acting on the particle.

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Authors and Affiliations

  1. Department of Metallurgy and Materials Science, Polytechnic University, 11201, Brooklyn, NY

    S. Nourbakhsh (Associate Professor)

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  1. S. Nourbakhsh
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Nourbakhsh, S. Pinning of grain boundaries by deformable particles. Metall Trans A 23, 1181–1186 (1992). https://doi.org/10.1007/BF02665049

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  • DOI: https://doi.org/10.1007/BF02665049

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