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Slip sources in the surface layers of polycrystalline Fe-3 pct Si in the early stages of deformation

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Abstract

Results of a systematic etch-pit study of the distribution of slip sources in successive layers of silicon-iron in its early stages of deformation are presented. These indicate that slip initiates at sources associated with grain boundaries that emerge at the surface and that grain boundary sources lying at progressively greater depths are activated as the applied stress is increased. A simple model is proposed which adequately explains the observed characteristics of slip traces which are nucleated at applied stresses insufficient to propagate them across the grain. Contradictory observations on the nature of slip sources made by other workers on polycrystalline copper are also discussed.

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Authors and Affiliations

  1. Department of Mechanical Engineering, University of Manitoba, Winnipeg, Manitoba, Canada

    K. N. Tandon (Post-Doctoral Fellow) & K. Tangri (Professor of Metallurgy)

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  1. K. N. Tandon
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  2. K. Tangri
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Tandon, K.N., Tangri, K. Slip sources in the surface layers of polycrystalline Fe-3 pct Si in the early stages of deformation. Metall Trans A 6, 809–813 (1975). https://doi.org/10.1007/BF02672304

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  • DOI: https://doi.org/10.1007/BF02672304

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