Skip to main content
SpringerLink
Log in

Application of thermodynamics of heterogeneous phase equilibria to the construction of the Fe-Si-O ternary phase diagram

  • Published:
Metallurgical Transactions Aims and scope Submit manuscript

Abstract

Based on the thermodynamic principles of phase rule and heterogeneous equilibria, the ternary phase diagram for the system Fe-SiO in the range of temperatures from 1730 to 1200° has been constructed with more attention paid to temperatures above 1515° and towards the iron corner of the diagram. The system is characterized by a region of three liquids above 1730° which reduces to two-liquids regions at lower temperatures. Several three-phase and four-phase reactions occur in this system on cooling, at various temperatures. Near the iron corner a eutectic reaction occurs at a fixed temperature in which delta iron co-precipitates with cristobalite from liquid iron containing silicon and oxygen. At lower temperatures the system is characterized by an invariant reaction involving liquid iron, delta iron, cristobalite and liquid oxide. For oxygen rich melts, solidification terminates on the Fe-0 binary with the monotectic precipitation of delta iron and liquid oxide.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. L. S. Darken and R. W. Gurry:Physical Chemistry of Metals, McGraw-Hill Book Co., 1953, New York, pp. 350–58.

    Google Scholar 

  2. A. Muan and E. F. Osborn:Phase Equilibria Among Oxides in Steelmaking, Addison-Wesley Co., Inc., Mass, 1965, pp. 53–69.

    Google Scholar 

  3. J. W. Greig:Am. J. Sci, 1927, vol. 13, ser. 5, pp. 1–44.

    Article  CAS  Google Scholar 

  4. M. Hansen:Constitution of Binary Alloys, McGraw-Hill Co., Inc., 1958, New York, p. 430.

    Google Scholar 

  5. R. E. Johnson and A. Muan:J. Amer. Cer. Soc, 1968, vol. 51, no. 8, p. 430.

    Article  CAS  Google Scholar 

  6. J. E. Ricci:Phase Rule and Heterogeneous Equilibrium, D. Van Nostrand Co., Inc., New York, 1951.

    Google Scholar 

  7. S. Matoba, K. Gunji, and T. Kuwana:Trans. (Japanese) Nat. Res. Inst. Metals, 1961, no. 2, vol. 3, pp. 81–90.

    CAS  Google Scholar 

  8. R. Schumann, Jr. and P. J. Ensio:Trans. AIME, 1953, vol. 189, pp. 401–11.

    Google Scholar 

  9. G. Forward and J. F. Elliott:Met. Trans., 1970, vol. 1, p. 2889.

    CAS  Google Scholar 

  10. D. C. Hilty and W. Crafts:Trans. AIME, 1952, vol. 188, p. 425.

    Google Scholar 

  11. E. L. Evans and H. A. Sloman:J. Iron Steel Inst., 1952, vol. 171, pp. 296–300.

    Google Scholar 

  12. K. Torsell:Jernkontorets Ann., 1967, vol. 151, pp. 890–949.

    Google Scholar 

  13. R. K. Lyengar and W. O. Philbrook:Met. Trans., 1973, vol. 4, pp. 2189–93.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Steelmaking and Deoxidation, Jones & Laughlin Steel Corporation, 15230, Pittsburgh, Pa

    R. K. Iyengar (Research Supervisor)

  2. Department of Metallurgy and Materials Science, Carnegie-Mellon University, 15213, Pittsburgh, Pa

    W. O. Philbrook (Professor)

Authors
  1. R. K. Iyengar
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. W. O. Philbrook
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

This paper was presented at the Centennial Meeting of the AIME Conference, New York, 1971.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Iyengar, R.K., Philbrook, W.O. Application of thermodynamics of heterogeneous phase equilibria to the construction of the Fe-Si-O ternary phase diagram. Metall Trans 4, 2181–2188 (1973). https://doi.org/10.1007/BF02643285

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02643285

Keywords

Search

Navigation