Metallurgical Transactions B

, Volume 18, Issue 3, pp 611–616 | Cite as

The evolution of macrosegregation in statically cast binary ingots

  • W. D. Bennon
  • F. P. Incropera
Solidification
Received:

Abstract

A recently developed continuum model has been used to investigate macrosegregation in a statically cast NH4Cl-H2O ingot. Mushy region dendrite erosion and the formation of channel type “A” segregates have, for the first time, been predicted by fully coupling the species conservation equation with equations governing the conservation of energy and momentum. Previous qualitative experimental observations for the NH4Cl−H2O system have been used extensively to verify the present numerical results.

Keywords

Metallurgical Transaction Mushy Zone Bulk Fluid Cavity Bottom Mushy Region 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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References

  1. 1.
    M. C. Flemings:Solidification Processing, McGraw-Hill, New York, NY, 1974.Google Scholar
  2. 2.
    M. C. Flemings and G. E. Nereo:Trans. TMS-AIME, 1967, vol. 239, pp. 1449–61.Google Scholar
  3. 3.
    M. C. Flemings, R. Mehrabian, and G. E. Nereo:Trans. TMS-AIME, 1968, vol. 242, pp. 41–49.Google Scholar
  4. 4.
    M. C. Flemings and G. E. Nereo:Trans. TMS-AIME, 1968, vol. 242, pp. 50–55.Google Scholar
  5. 5.
    R. Mehrabian, M. Keane, and M. C. Flemings:Metall. Trans., 1970, vol. 1, pp. 1209–20.Google Scholar
  6. 6.
    S. Kou, D. R. Poirier, and M. C. Flemings:Electric Furance Proceedings, Iron and Steel Society of AIME, Chicago, IL, 1977, vol. 35, pp. 221–28.Google Scholar
  7. 7.
    T. Fujii, D. R. Poirier, and M.C. Flemings:Metal. Trans. B. 1979, vol. 10B, pp. 331–39.CrossRefGoogle Scholar
  8. 8.
    S. D. Ridder, S. Kou, and R. Mehrabian:Metall. Trans. B, 1981, vol. 12B, pp. 435–47.Google Scholar
  9. 9.
    J. Szekely and A. S. Jassal:Metall. Trans. B, 1978, vol. 9B, pp. 389–98.Google Scholar
  10. 10.
    W. D. Bennon and F. P. Incropera:Int. J. Heat Mass Transfer, 1987, in press.Google Scholar
  11. 11.
    K. A. Jackson, J. D. Hunt, D. R. Uhlmann and T. P. Seward, III:Trans. TMS-AIME, 1966, vol. 236, pp. 149–58.Google Scholar
  12. 12.
    R. J. McDonald and J. D. Hunt:Trans. TMS-AIME, 1969, vol. 245, pp. 1993–97.Google Scholar
  13. 13.
    R. J. McDonald and J. D. Hunt:Metall. Trans., 1970, vol. 1, pp. 1787–88.CrossRefGoogle Scholar
  14. 14.
    S. Asai and I. Muchi:Trans. ISIJ, 1978, vol. 18, pp. 90–98.Google Scholar
  15. 15.
    S. V. Patankar:Numerical Heat Transfer, 1981, vol. 4, pp. 409–25.Google Scholar
  16. 16.
    S. Witzke, J. P. Riquet, and F. Durand:Acta Metall., 1981, vol. 29, pp. 365–75.CrossRefGoogle Scholar
  17. 17.
    International Critical Tables of Numerical Data, Physics, Chemistry, and Technology, 1928, vol. 3–4.Google Scholar
  18. 18.
    S. M. Copley, A. F. Giamei, S. M. Johnson, and M. F. Hombecker:Metall. Trans., 1970, vol. 1, pp. 2193–2204.CrossRefGoogle Scholar

Copyright information

© The Metallurgical Society and ASM INTERNATIONAL 1987

Authors and Affiliations

  • W. D. Bennon
    • 1
  • F. P. Incropera
    • 2
  1. 1.Alcoa Technical CenterAlcoa Center
  2. 2.School of Mechanical EngineeringPurdue UniversityWest Lafayette

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