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Cleavage resistance of fine-structured materials

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Abstract

Based on a previous bicrystal fracture experiment, the resistance offered by a narrow high-angle grain boundary to cleavage cracking is analyzed theoretically. It is predicted that, when the grain boundary width is smaller than the distance between break-through points, the grain boundary toughness will be highly dependent on the characteristic microstructure length. Analytical expressions are obtained for freestanding thin films and fine-grained materials.

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Authors and Affiliations

  1. Department of Civil Engineering, University of Akron, 44325-3905, Akron, Ohio, USA

    Y. Qiao & X. Kong

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  1. Y. Qiao
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  2. X. Kong
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Correspondence to Y. Qiao.

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Qiao, Y., Kong, X. Cleavage resistance of fine-structured materials. Met. Mater. Int. 12, 27–30 (2006). https://doi.org/10.1007/BF03027519

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  • DOI: https://doi.org/10.1007/BF03027519

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