Thermodynamic Self-interaction of Si in Ferritic Fe-Si Alloys


In order to clarify the thermodynamic properties of Si in ferritic Fe-Si alloy, equilibrium experiments were carried out with Fe-Si foils and Ag-Si alloys. The activity coefficient of Si at infinite dilute solution and the self-interaction parameters of Si were investigated from the distribution equilibrium of Si between the Fe and the Ag alloys. The self-interaction parameters of Si in the ferritic Fe-Si alloy were determined from 1323 K to 1423 K as follows:

$$ \varepsilon_{\text{Si}}^{\text{Si}} = - \frac{44065.8}{T} + 3.17 $$

This is a preview of subscription content, access via your institution.

Fig. 1
Fig. 2
Fig. 3


  1. 1.

    M. Hino, K. Ito: Thermodynamic data for steelmaking, Sendai, Tohoku University Press, 2010.

    Google Scholar 

  2. 2.

    T. Wada, H. Wada, J. F. Elliott and J. Chipman, Metall. Trans., 1971, vol.2, pp.2199-2208.

    CAS  Article  Google Scholar 

  3. 3.

    T. Wada, H. Wada, J. F. Elliott and J. Chipman, Metall. Trans., 1972, vol.3, pp.1657-1662.

    CAS  Article  Google Scholar 

  4. 4.

    Y. Kang and K. Morita, ISIJ Int., 2011, vol.51, pp.2002-2006.

    CAS  Article  Google Scholar 

  5. 5.

    W. C. Jeong, Met. Mater. Int., 2003, vol.9, pp.179-185.

    CAS  Article  Google Scholar 

  6. 6.

    M. De Meyer, D. Vanderschueren and B. C. De Cooman, ISIJ Int., 1999, vol. 39, pp. 813-822.

    Article  Google Scholar 

  7. 7.

    Y. Ueshima, Y. Sawada, S. Mizoguchi and H. Kajioka, Metall. Trans. A, 1989, vol.20A, pp.1375-1383.

    CAS  Article  Google Scholar 

  8. 8.

    H. Sakao, A. Kubo and Y. Ishino: Proc. Int. Conf. Sci. Tech. Iron and Steel, Tokyo Iron & Steel Inst., Japan, 1971, pp. 449–56.

  9. 9.

    H. Sakao and J. F. Elliott, Metall. Trans. A, 1975, vol.6A, pp.1849-1851.

    CAS  Article  Google Scholar 

  10. 10.

    H. Sakao and J. F. Elliott, Metall. Trans., 1974, vol.5, pp.2063-2067.

    CAS  Article  Google Scholar 

  11. 11.

    D. Bergner, Y. Khaddour and S. Lörx, Def. and Diffus. For., 1990, vol.66-69, pp.1407-1412.

    Google Scholar 

  12. 12.

    R. A. Fogel, M. J. Rutherford and P. C. Hess, Geochimica et CosmoChimica Acta, 1989, vol.53, pp.2735-2746.

    CAS  Article  Google Scholar 

Download references

Author information



Corresponding author

Correspondence to Youngjo Kang.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Manuscript submitted March 28, 2019.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Lee, S., Kang, Y. Thermodynamic Self-interaction of Si in Ferritic Fe-Si Alloys. Metall Mater Trans A 50, 4498–4501 (2019).

Download citation