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Hardness of H13 Tool Steel After Non-isothermal Tempering

  • E. Nelson
  • A. Kohli
  • D. R. Poirier
Article
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Abstract

A direct method to calculate the tempering response of a tool steel (H13) that exhibits secondary hardening is presented. Based on the traditional method of presenting tempering response in terms of isothermal tempering, we show that the tempering response for a steel undergoing a non-isothermal tempering schedule can be predicted. Experiments comprised (1) isothermal tempering, (2) non-isothermal tempering pertaining to a relatively slow heating to process-temperature and (3) fast-heating cycles that are relevant to tempering by induction heating. After establishing the tempering response of the steel under simple isothermal conditions, the tempering response can be applied to non-isothermal tempering by using a numerical method to calculate the tempering parameter. Calculated results are verified by the experiments.

Keywords

non-isothermal tempering secondary hardening tool steel 

Notes

Acknowledgments

One of the authors (EN) appreciates the encouragement in the form of an award tendered to him by the Phoenix Chapter of ASM International during a student competition when he was yet an undergraduate student. The award was for his presentation on non-isothermal tempering of steel.

References

  1. 1.
    A.K. Sinha, Physical Metallurgy Handbook, McGraw-Hill, New York, NY, 2003, p 14.45–14.47Google Scholar
  2. 2.
    A.K. Sinha, ibid., p. 14.26–14.28Google Scholar
  3. 3.
    Virat, H13 Steel|H13 Tool Steel|H-13 Hot Work Die Steel|H 13. Virat Special Steels (P) Limited. N.p., 2017. Web. 19 July 2017Google Scholar
  4. 4.
    L.C.F. Canale, X. Yao, J. Gu, and G.E. Totten, A Historical Overview of Steel Tempering Parameters, Int. J. Microstruct. Mater. Prop., 2008, 3(4-5), p 474–525Google Scholar
  5. 5.
    J.H. Hollomon and L.D. Jaffe, TimeTemperature Relations in Tempering Steel (American Institute of Mining and Metallurgical Engineers, Technical Publication No. 1831, 1945) p. 2Google Scholar
  6. 6.
    R.A. Grange and R.W. Baughman, Hardness of Tempered Martensite in Carbon and Low Alloy Steels, Trans. ASM, 1956, 48, p 165–197Google Scholar
  7. 7.
    V. Rudnev, G.A. Fett, and S.L. Semiatin, Tempering of Induction-Hardened Steels in Induction Heating and Heat Treatment, ASM Handbook, Vol 4C, ASM International, Materials Park, OH, 2014, p 130–159Google Scholar
  8. 8.
    V. Rudnev, G.A. Fett, A. Griebel, and J. Tartaglia, Principles of Induction Heating and Heat Treatment, ASM Handbook, Vol 4C, ASM International, Materials Park, OH, 2014, p 55–86Google Scholar
  9. 9.
    Techcommentary, Induction Tempering, vol. 2, no. 4, 1991, EPRI Center for Metals Fabrication.Google Scholar
  10. 10.
    D.R. Poirier and A. Kohli, Method to Predict Tempering of Steels Under Non-isothermal Conditions, J. Mater. Eng. Perform., 2017, 26(5), p 1986–1992CrossRefGoogle Scholar
  11. 11.
    V. Rudnev, D. Loveless, R. Cook, and M. Black, Handbook of Induction Heating, Marcel Dekker, Monticello, NY, 2003, p 99–184Google Scholar
  12. 12.
    V. Nemkov, Modeling of Induction Hardening Process, Handbook of Thermal Process Modeling of Steels, C.H. Gür and J. Pan, Ed., CRC Press, New York, NY, 2009, p 427–498Google Scholar
  13. 13.
    K. Stiller, S. Karagöz, H.-O. Andrén, and H. Fischmeister, Secondary Hardening in High Speed Steels, J. Physique Colloques, 1987, 48(C6), p C6-405–C6-410Google Scholar

Copyright information

© ASM International 2018

Authors and Affiliations

  1. 1.Spartan Armor SystemsTucsonUSA
  2. 2.Department of Materials Science and EngineeringThe University of ArizonaTucsonUSA
  3. 3.VancouverCanada

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