Metallurgical Transactions B

, Volume 9, Issue 3, pp 415–425 | Cite as

Steady state segregation and heat flow in ESR

  • S. D. Ridder
  • F. C. Reyes
  • S. Chakravorty
  • R. Mehrabian
  • J. D. Nauman
  • J. H. Chen
  • H. J. Klein
Physical Chemistry
First Online:
Received:

Abstract

A combined theoretical and experimental study of steady-state heat flow and segregation in ESR is presented. The segregation model permits prediction of pressure gradients, hence, interdendritic flow velocities responsible for macrosegregation in the “mushy≓ zone of axisymmetric ESR ingots. The heat flow model considers the solidus isotherm as a moving boundary. The relationships between power and slag temperature as well as power and heat transfer coefficient are experimentally measured and included in the heat balance equation for the slag. Experiments on both a low-temperature simulated ESR apparatus and on a 200 mm diam ESR ingot mold verify both models.

Keywords

Metallurgical Transaction Mold Wall Metal Pool Volume Fraction Liquid Positive Segregation 
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Copyright information

© American Society for Metals and The Metallurgical Society of AIME 1978

Authors and Affiliations

  • S. D. Ridder
    • 1
  • F. C. Reyes
    • 1
  • S. Chakravorty
    • 2
  • R. Mehrabian
    • 3
  • J. D. Nauman
    • 4
  • J. H. Chen
    • 5
  • H. J. Klein
    • 5
  1. 1.Depart- ment of Metallurgy and Mining EngineeringUniversity of IllinoisUrbana-Champaign
  2. 2.Department of Materials Science and EngineeringPahlavi UniversityShirazIran
  3. 3.Department of Metallurgy and Mining Engineering and Department of Mechanical and Industrial EngineeringUniversity of IllinoisUSA
  4. 4.U.S. Steel CorporationMonroeville
  5. 5.Cabot CorporationKokomo

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