Skip to main content
SpringerLink
Log in

Observations of ingot macrosegregation on model systems

  • Published:
Metallurgical transactions Aims and scope Submit manuscript

Abstract

The processes involved in the formation of macrosegregation in castings or ingots are discussed. A model ingot was used for studying the progress of macrosegregation as the growth front moved across the specimen. Pb-Sn and Sn-Zn alloys were chosen to illustrate the effect of the change in density of the inter dendritic liquid during freezing. At slow growth rates, it was found that convective interdendritic flow was the dominant mechanism in all the castings.

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. R. J. McDonald and J. D. Hunt:Trans. TMS-AIME, 1969, vol. 245, p. 1993.

    CAS  Google Scholar 

  2. R. J. McDonald and J. D. Hunt:Met. Trans., 1970, vol. 1, pp. 1787–88.

    Article  Google Scholar 

  3. S. M. Copley, A. F. Giamei, S. M. Johnson, and M. F. Hornbecker:Met. Trans., 1970, vol. 1, p. 2193.

    Article  CAS  Google Scholar 

  4. R. Mehrabian, M. Keane, and M. C. Flemings:Met. Trans., 1970, vol. 1, pp. 1209–20.

    Article  CAS  Google Scholar 

  5. J. A. Burton, R. C. Prim, and W. P. Slichter:J. Chem. Phys., 1953, vol. 21, p. 1987.

    Article  CAS  Google Scholar 

  6. J. S. Kirkaldy and W. V. Youdelis:Trans. TMS-AIME, 1958, vol. 212, p. 833.

    CAS  Google Scholar 

  7. M. C. Flemings and G. E. Nereo:Trans. TMS-AIME, 1967, vol. 239, p. 1449.

    CAS  Google Scholar 

  8. H. R. Thresh, A. F. Crawley, and D. W. G. White:Trans. TMS-AIME, 1968, vol. 242, pp. 819–22.

    CAS  Google Scholar 

  9. D. J. Hebditch and J. D. Hunt:Met. Trans., 1973, vol. 4, pp. 2008–10.

    Article  CAS  Google Scholar 

  10. D. J. Hebditch: Ph.D. Thesis, Oxford University, 1973.

Download references

Author information

Authors and Affiliations

  1. Marchwood Engineering Laboratory of the Central Electricity Generating Board, Totton, Hants, UK

    D. J. Hebditch

  2. Department of Metallurgy, University of Oxford, Oxford, UK

    J. D. Hunt (University Lecturer)

Authors
  1. D. J. Hebditch
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. J. D. Hunt
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Formerly Student, Department of Metallurgy, Oxford University

Rights and permissions

Reprints and permissions

About this article

Cite this article

Hebditch, D.J., Hunt, J.D. Observations of ingot macrosegregation on model systems. Metall Trans 5, 1557–1564 (1974). https://doi.org/10.1007/BF02646326

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02646326

Keywords

Search

Navigation