Abstract
The experimental data on the self-diffusion coefficient of austenite with different chemical compositions obtained by the radioactive isotope method have been analyzed quantitatively. The self-diffusion activation energy in pure γ-iron is shown to be ∼312 kJ/mol. Alloying of austenite with such elements as Mn, Mo, Nb, Ti, and Si (to a lower degree) increases the self-diffusion activation energy, and alloying with C, V, or Cr (for the element content ≥3 at %) decreases it. The empirical formula is derived for calculation of the self-diffusion activation energy in austenite solid solutions with complex composition.
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Original Russian Text © A.A. Vasilyev, S.F. Sokolov, N.G. Kolbasnikov, D.F. Sokolov, 2011, published in Fizika Tverdogo Tela, 2011, Vol. 53, No. 11, pp. 2086–2092.
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Vasilyev, A.A., Sokolov, S.F., Kolbasnikov, N.G. et al. Effect of alloying on the self-diffusion activation energy in γ-iron. Phys. Solid State 53, 2194–2200 (2011). https://doi.org/10.1134/S1063783411110308
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DOI: https://doi.org/10.1134/S1063783411110308