Heat and Mass Transfer

, Volume 47, Issue 3, pp 315–321 | Cite as

Heat transfer coefficients during quenching of steels

  • H. S. Hasan
  • M. J. Peet
  • J. M. Jalil
  • H. K. D. H. Bhadeshia
Original

Abstract

Heat transfer coefficients for quenching in water have been measured as a function of temperature using steel probes for a variety of iron alloys. The coefficients were derived from measured cooling curves combined with calculated heat-capacities. The resulting data were then used to calculate cooling curves using the finite volume method for a large steel sample and these curves have been demonstrated to be consistent with measured values for the large sample. Furthermore, by combining the estimated cooling curves with time-temperature-transformation (TTT) diagrams it has been possible to predict the variation of hardness as a function of distance via the quench factor analysis. The work should prove useful in the heat treatment of the steels studied, some of which are in the development stage.

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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • H. S. Hasan
    • 1
  • M. J. Peet
    • 2
  • J. M. Jalil
    • 1
  • H. K. D. H. Bhadeshia
    • 2
  1. 1.Department of Electromechanical EngineeringThe University of TechnologyBaghdadIraq
  2. 2.Department of Materials Science and MetallurgyUniversity of CambridgeCambridgeUK

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