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Kinetics of spinodal decomposition in Fe-Si alloys

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Czechoslovak Journal of Physics B Aims and scope

Abstract

The spinodal decomposition in the two-phase region of the phase diagram (B2 + DO3) of Fe-Si alloys is studied on the basis of the generalized diffusion equation. The configurational free energy is calculated in the Bragg-Williams-Gorsky approximation. The effect of the coherency strain energy is estimated. In the main part of the paper the Langer's method is applied in the investigation of the coarsening rate in Fe-Si system with a good agreement with experimental data in a broad range of annealing times. The limitations of such approach are discussed with respect to the Khachaturyan's theory of the periodic distributions of decomposition products.

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Authors and Affiliations

  1. Institute of Physics, Czechosl. Acad. Sci., Prague, Na Slovance 2, Praha 8, Czechoslovakia

    V. Paidar

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  1. V. Paidar
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Additional information

The author is grateful to Dr. F.Kroupa for his guidance and encouragement during the course of this work, to Dr. S.Libovický and Dr. A.Gemperle for discussions of their latest experimental results.

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Paidar, V. Kinetics of spinodal decomposition in Fe-Si alloys. Czech J Phys 27, 50–70 (1977). https://doi.org/10.1007/BF01587484

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  • DOI: https://doi.org/10.1007/BF01587484

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