International Journal of Thermophysics

, Volume 19, Issue 6, pp 1657–1669 | Cite as

Transport Properties and Transport Phenomena in Casting Nickel Superalloys

  • S. D. Felicelli
  • P. K. Sung
  • D. R. Poirier
  • J. C. Heinrich


Nickel superalloys that are used in the high-temperature regions of gas-turbine engines are cast by directional solidification (DS). In the DS processes, the castings are cooled from below, and three zones exist during solidification: (1) an all-solid zone at the bottom, (2) a “mushy zone” that is comprised of solid and liquid material, and (3) an overlying all-liquid zone. Computer simulations can be useful in predicting the complex transport phenomena that occur during solidification, but realistic simulations require accurate values of the transport properties. In addition to transport properties, the thermodynamic equilibria between the solid and liquid during solidification must also be known with reasonable accuracy. The importance of using reasonably accurate estimations of the transport properties is illustrated by two-dimensional simulations of the convection during solidification and the coincidental macrosegregation in the DS castings of multicomponent Ni-base alloys. In these simulations, we examine the sensitivity of the calculated results to measured partition ratios, thermal expansion coefficients, and viscosities that are estimated by regression analyses and correlations of existing property data.


directional solidification freckles multicomponent alloys nickel superalloys 


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  1. 1.
    P. R. Beeley, in Investment Casting, P. R. Beeley and R. F. Smart, eds. (Institute of Materials, London, 1995), p. 374.Google Scholar
  2. 2.
    A. Hellawell, J. R. Sarazin, and R. S. Steube, Phil. Trans. Royal Soc. Lond. 345A:507 (1993).ADSCrossRefGoogle Scholar
  3. 3.
    S. D. Felicelli, J. C. Heinrich, and D. R. Poirier, Metall. Trans. B 22B:847 (1991).ADSCrossRefGoogle Scholar
  4. 4.
    D. R. Poirier and J. C. Heinrich, in Modeling of Casting, Welding and Advanced Solidification Process VI, T. S. Piwonka, V. Voller, and L. Katgerman, eds. (TMS, Warrendale, PA, 1993), pp. 227–234.Google Scholar
  5. 5.
    D. G. Neilson and F. P. Incropera, Wärme- und Stoffübertragung 27:1 (1992).ADSCrossRefGoogle Scholar
  6. 6.
    T. Fujii, D. R. Poirier, and M. C. Flemings, Metall. Trans. B 10B:331 (1979).ADSCrossRefGoogle Scholar
  7. 7.
    M. C. Schneider and C. Beckermann, Metall. Mater. Trans. A 26A:2373 (1995).ADSCrossRefGoogle Scholar
  8. 8.
    M. C. Schneider and C. Beckermann, ISIJ In. 35:665 (1995).CrossRefGoogle Scholar
  9. 9.
    S. D. Felicelli, D. R. Poirier, and J. C. Heinrich, J. Cryst. Growth 177:145 (1997).ADSCrossRefGoogle Scholar
  10. 10.
    P. K. Sung, D. R. Poirier, and E. McBride, Mater. Sci. Eng. A231:189 (1997).CrossRefGoogle Scholar
  11. 11.
    S. D. Felicelli, J. C. Heinrich, and D. R. Poirier, Num. Heat Transfer 23:461 (1993).ADSCrossRefGoogle Scholar
  12. 12.
    P. K. Sung, Ph.D. (The University of Arizona, Tucson, 1998).Google Scholar
  13. 13.
    P. Nash (ed.), Phase Diagrams of Binary Nickel Alloys (ASM International, Materials Park, OH, 1991), p. 367.Google Scholar
  14. 14.
    G. Petzow and G. Effenberg (eds.), Ternary Alloys, Vol. 8 (VCH, Weinheim, Germany, 1993), p. 49.Google Scholar
  15. 15.
    S. N. Tewari, M. Vijayakumar, J. E. Lee, and P. A. Curreri, Mater. Sci. Eng. A 141:97 (1991).CrossRefGoogle Scholar
  16. 16.
    E. McBride and D. R. Poirier, Internal report to Investment Casting Cooperative Arrangement, Contract No. MDA972-93-2-0O01 (The University of Arizona, Tucson, 1996).Google Scholar
  17. 17.
    W. Betteridge and J. Heslop (eds.), The Nimonic Alloys and Other Nickel-Base High-Temperature Alloys, 2nd ed. (Crane, Russak, New York, 1974), p. 161.Google Scholar
  18. 18.
    B. A. Mueller, Private communication (Howmet Research Center, Whitehall, MI, 1996).Google Scholar
  19. 19.
    D. R. Poirier, Metals Trans. B 18B:245 (1987).ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • S. D. Felicelli
    • 1
  • P. K. Sung
    • 2
  • D. R. Poirier
    • 2
  • J. C. Heinrich
    • 1
  1. 1.Department of Aerospace and Mechanical EngineeringThe University of ArizonaTucsonUSA
  2. 2.Department of Materials Science and EngineeringThe University of ArizonaTucsonUSA

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