Skip to main content
Log in

Effect of Deformation Parameters on the No-Recrystallization Temperature in Nb-Bearing Steels

  • Published:
Metallurgical Transactions A Aims and scope Submit manuscript

Abstract

The recrystallization behavior of three Nb-bearing high-strength low-alloy (HSLA) steels was investigated during multipass deformation under continuous cooling conditions. The niobium concentrations of these steels varied from 0.05 to 0.09 wt pct. The specimens were tested on a computerized torsion machine using a simulation schedule of 17 passes. Deformation tem-peratures of 1180 °C to 700 °C were employed, together with pass strains of 0.1 to 0.7, strain rates of 0.2 to 10 s-1, and interpass times of 5 to 200 seconds. By means of mean flow stressvs 1000/T diagrams, the effect of the deformation conditions on the no-recrystallization tem-perature (Tnr), the temperature at which recrystallization is no longer complete, was determined. It decreases with increasing strain and also decreases slightly with increasing strain rate. There is aTr minimum at times of about 12∼15 seconds, and both increases and decreases from this value raise this characteristic temperature. When the interpass times are short, solute atoms control the rate of recrystallization, the extent of which decreases as the time is decreased. When the interpass times are long, precipitation takes place and retards recrystallization, so that the extent of softening decreases.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. W.J. Liu and J.J. Jonas:Metall. Trans. A, 1988, vol. 19A, pp. 1403–13.

    Article  CAS  Google Scholar 

  2. W.P. Sun, W.J. Liu, and J.J. Jonas:Metall. Trans. A, 1989, vol. 20A, pp. 2707–15.

    Article  CAS  Google Scholar 

  3. B. Migaud:Hot Working and Forming Processes, CM. Sellars and G.J. Davis, eds., Sheffield, England, 1979, pp. 67–76.

  4. L.N. Pussegoda, S. Yue, and J.J. Jonas:Metall. Trans. A, 1990, vol. 21A, pp. 153–64.

    Article  CAS  Google Scholar 

  5. L.N. Pussegoda and J.J. Jonas:Iron Steel lnst. Jpn. Int., 1991, vol. 31 (3), pp. 278–88.

    Article  CAS  Google Scholar 

  6. F.H. Samuel, S. Yue, J.J. Jonas, and B.A. Zbinden:Iron Steel lnst. Jpn. Int., 1989, vol. 29 (10), pp. 878–86.

    Article  CAS  Google Scholar 

  7. F.H. Samuel, S. Yue, J.J. Jonas, and K.R. Barnes:Iron Steel lnst. Jpn. Int., 1990, vol. 30 (3), pp. 216–25.

    Article  CAS  Google Scholar 

  8. F. Boratto, R. Barbosa, S. Yue, and J.J. Jonas:THERMEC-88, Imao Tamura, ed., Tokyo, Japan, 1988, vol. 1, pp. 383–90.

    Google Scholar 

  9. S. Yue and J.J. Jonas:Mater. Forum, 1990, vol. 14, pp. 245–52.

    CAS  Google Scholar 

  10. D.Q. Bai, S. Yue, W.P. Sun, and J.J. Jonas:Processing,Microstructure and Properties of Microalloyed and Other Modern Low Alloy Steels, Proc. Int. Conf., A.J. DeArdo, ed., Pittsburgh, PA, June 4-6, 1991, pp. 165-73.

  11. D.Q. Bai, S. Yue, W.P. Sun, and J.J. Jonas:34th Mechanical Working and Steel Processing, Proc. Int. Conf., Montreal, Oct. 1992, pp. 515-23.

  12. L.M. Brown and W.M. Stobbs:Phil. Mag., 1971, vol. 23, p. 1201.

    Article  CAS  Google Scholar 

  13. P.F. Chapman and W.M. Stobbs:Phil. Mag., 1969, vol. 19, p. 1015.

    Article  CAS  Google Scholar 

  14. T.C. Rollason and J.W. Martin:J. Mater. Sci., 1970, vol. 5, p. 127.

    Article  CAS  Google Scholar 

  15. T. Chandra, S. Yue, J.J. Jonas, and R.J. Ackert: in Proc. 4th Int. Conf. on The Science and Technology of Flat Rolling, Deauville, France, June 1987, vol. 2, pp. F.18. l-F.18.8.

  16. K.J. Irvine, F.B. Pickering, and T. Gladman:J. Iron Steel lnst., 1967, vol. 205, pp. 161–82.

    CAS  Google Scholar 

  17. L.J. Cuddy, J.J. Bauwin, and J.C. Raley:Metall. Trans. A, 1980, vol. 11A, pp. 381–86.

    Article  CAS  Google Scholar 

  18. W.P. Sun, M. Militzer, and J.J. Jonas:Metall. Trans. A, 1992, vol. 23A, pp. 3013–23.

    Article  CAS  Google Scholar 

  19. I. Weiss and J.J. Jonas:Metall. Trans. A, 1980, vol. 11 A, pp. 403–10.

    Article  Google Scholar 

  20. J.G. Speer and S.S. Hansen:Metall. Trans. A, 1989, vol. 20A, pp. 25–38.

    Article  CAS  Google Scholar 

  21. D.R. Barraclough and CM. Sellars:Met. Sci., 1979, vol. 13, pp. 257–67.

    Article  CAS  Google Scholar 

  22. E. Ruibal, J.J. Urcola, and M. Fuentes:Z. Metallkde, 1985, vol. 76, p. 568.

    CAS  Google Scholar 

  23. W.P. Sun, M. Militzer, D.Q. Bai, and J.J. Jonas:Recrystallization '92, Materials Science Forum, 1992, vols. 113-115, pp. 533–38.

    Article  Google Scholar 

  24. S.V. Subramanian, F. Boratto, J.J. Jonas, and C M. Sellars:Microalloyed Bar and Forging Steels, M. Finn, ed., Hamilton, ON, Canada, 1990, pp. 120-36.

  25. H.L. Zou and J.S. Kirkaldy:Metall. Trans. A, 1991, vol. 22A, pp. 1511–23.

    Article  CAS  Google Scholar 

  26. M. Djahazi, X.L. He, J.J. Jonas, and W.P. Sun:Metall. Trans. A, 1992, vol. 23A, pp. 2111–20.

    Article  CAS  Google Scholar 

  27. B. Dutta and Sellars:Mater. Sci. Technol., 1987, vol. 3, pp. 197–206.

    Article  CAS  Google Scholar 

  28. D.Q. Bai: Master's Thesis, McGill University, Montreal, PQ, Canada, 1992.

    Google Scholar 

  29. M. Umemoto, K. Horiuchi, and I. Tamura:Trans. Iron Steel lnst. Jpn., 1982, vol. 22, pp. 854–61.

    Article  Google Scholar 

  30. M. Umemoto, K. Horiuchi, and I. Tamura:Trans. Iron Steel lnst. Jpn., 1983, vol. 23, pp. 690–95.

    Article  CAS  Google Scholar 

  31. S.H. Park, S. Yue, and J.J. Jonas:Metall. Trans. A, 1992, vol. 23A, pp. 1641–51.

    Article  CAS  Google Scholar 

  32. E. Scheil:Arch. Eisenhiittenwes., 1935, vol. 12, pp. 565–67.

    Google Scholar 

  33. CM. Sellars:Hot Working and Forming Processes, C M. Sellars and G.J. Davies, eds., Sheffield, England, 1979, pp. 3-15.

Download references

Author information

Authors and Affiliations

Authors

Additional information

Formerly Research Associate, McGill University, Department of Metallurgical Engineering.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Bai, D.Q., Yue, S., Sun, W.P. et al. Effect of Deformation Parameters on the No-Recrystallization Temperature in Nb-Bearing Steels. Metall Trans A 24, 2151–2159 (1993). https://doi.org/10.1007/BF02648589

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02648589

Keywords

Navigation