Abstract
The atomic structure of Fe-Si alloys with silicon concentrations of 3–8 at % (α area of the phase diagram) was studied by Mössbauer spectroscopy. It is established that plastic deformation under pressure and quenching after annealing at a disordering temperature of 850°C have an effect on the structural state of the alloys. Plastic deformation is shown to lead to a disordered state only at a minimum silicon content (3 at %); in other cases, a solid solution is locally separated into regions enriched in iron or silicon. In quenched samples, the separation is accompanied by a short-range ordering of the B2 type, which is characterized by an increase in the volume fraction of the coordination with two Si atoms in the first configuration shell of Fe; this result is in agreement with previous X-ray diffraction data.
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Original Russian Text © N.V. Ershov, N.M. Kleĭnerman, V.A. Lukshina, V.P. Pilyugin, V.V. Serikov, 2009, published in Fizika Tverdogo Tela, 2009, Vol. 51, No. 6, pp. 1165–1171.
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Ershov, N.V., Kleĭnerman, N.M., Lukshina, V.A. et al. Specific features of the local atomic structure of a Fe-Si alloy in the α area of the phase diagram. Phys. Solid State 51, 1236–1242 (2009). https://doi.org/10.1134/S1063783409060250
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DOI: https://doi.org/10.1134/S1063783409060250