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Computer simulation of carbon diffusion near b/2[010](001) dislocation in cementite

  • Structure, Phase Transformations, and Diffusion
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Abstract

Partial contributions U i to the activation energy for the diffusion of carbon atoms in the Fe3C lattice have been calculated. The U i values have been compared upon the migration of carbon atoms in the ideal lattice, near the stacking-fault plane, and near the core of a partial edge dislocation with a Burgers vector b/2[010]. The most preferable ways of the migration of carbon atoms near the studied structural defects in the (001) cementite plane have been revealed. The values of the stacking-fault energy in this plane have been calculated. The possibility of splitting the dislocation with a Burgers vector b/2[010] into two partial dislocations has been shown.

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Authors and Affiliations

  1. Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, ul. S. Kovalevskoi 18, Yekaterinburg, 620990, Russia

    L. E. Kar’kina, I. N. Kar’kin, I. L. Yakovleva & T. A. Zubkova

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  1. L. E. Kar’kina
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  2. I. N. Kar’kin
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  3. I. L. Yakovleva
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  4. T. A. Zubkova
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Correspondence to L. E. Kar’kina.

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Original Russian Text © L.E. Kar’kina, I.N. Kar’kin, I.L. Yakovleva, T.A. Zubkova, 2013, published in Fizika Metallov i Metallovedenie, 2013, Vol. 114, No. 2, pp. 172–178.

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Kar’kina, L.E., Kar’kin, I.N., Yakovleva, I.L. et al. Computer simulation of carbon diffusion near b/2[010](001) dislocation in cementite. Phys. Metals Metallogr. 114, 155–161 (2013). https://doi.org/10.1134/S0031918X13020099

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  • DOI: https://doi.org/10.1134/S0031918X13020099

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