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The influence of the Si and Mn concentrations on the kinetics of the bainite transformation in Fe-C-Si-Mn alloys

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Abstract

Five Fe-C-Si-Mn alloys were investigated by dilatometry, optical microscopy, and transmission electron microscopy (TEM) analysis to determine the effects of Si and Mn content and austenitizing temperatures on the kinetics of bainite transformation. Segregation of Mn at prior austenite grain boundaries at a temperature below Bs was detected by the scanning transmission electron microscopy + energy dispersive spectroscopy (STEM + EDS) and secondary ion mass spectroscopy (SIMS) techniques. The fraction of intragranular ferrite increases with Mn content. The time needed for the initiation of the bainite transformation tends to decrease as the austenitizing temperature decreases. The results obtained were compared with those from Fe-0.38C-1.73Si and Fe-0.38C-3.11Mn alloys. Equilibrium and nonequilibrium segregation of Mn at prior austenite grain boundaries and the effect of the interaction between Si and Mn on the segregation of Mn are used to explain the results obtained and the large difference between the kinetics of the two ternary alloys and those of the Fe-C-Si-Mn alloys.

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References

  1. S.K. Liu, W.T. Reynolds, Jr., H. Hu, G.J. Shiflet, and H.I. Aaronson:Metall. Trans. A, 1985, vol. 16A, pp. 457–66.

    CAS  Google Scholar 

  2. J.R. Bradley and H.I. Aaronson:Metall. Trans. A, 1981, vol. 12A, pp. 1729–41.

    Google Scholar 

  3. S.K. Liu and H.I. Aaronson: unpublished research, 1983.

  4. H.K.D.H. Bhadeshia and D.V. Edmonds:Metall. Trans. A, 1979, vol. 10A, pp. 895–907.

    CAS  Google Scholar 

  5. H.K.D.H. Bhadeshia and A.R. Waugh:Acta Metall., 1982, vol. 30, pp. 775–84.

    Article  CAS  Google Scholar 

  6. K.R. Kinsman and H.I. Aaronson: Written discussion to J.M. Oblak and R.F. Hehemann's paper inTransformation and Hardenability in Steels, Climax Molybdenum Co., Ann Arbor, MI, 1967, pp. 33–38.

    Google Scholar 

  7. P. Doig and P.E.J. Hewitt:Metall. Trans. A, 1987, vol. 18A, pp. 399–406.

    CAS  Google Scholar 

  8. P. Doig and P.E.J. Hewitt:Acta Metall., 1982, vol. 29, pp. 1831–41.

    Google Scholar 

  9. P. Doig, D. Lonsdale, and P.E.J. Flewitt:Metall. Trans. A, 1981, vol. 12A, pp. 1277–82.

    Google Scholar 

  10. R.W. Balluffi:Interfacial Segregation, ASM, Metals Park, OH, 1979, p. 193.

    Google Scholar 

  11. M. Enomoto, C.L. White, and H.I. Aaronson:Metall. Trans. A, 1988, vol. 19A, pp. 1807–18.

    CAS  Google Scholar 

  12. M. Guttmann and D. McLean:Interfacial Segregation, ASM, Metals Park, OH, 1979, p. 261.

    Google Scholar 

  13. C.J. McMahon, Jr.:Metall. Trans. A, 1980, vol. 11A, pp. 531–35.

    CAS  Google Scholar 

  14. Hideo Abe:Scand. J. Metall., 1984, vol. 13, p. 226.

    CAS  Google Scholar 

  15. W.T. Rynolds, Jr., S.K. Liu, F.Z. Li, S. Hartfield, and H.I. Aaronson:Metall. Trans. A, 1990, vol. 21A, pp. 1479–91.

    Google Scholar 

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Authors and Affiliations

  1. Department of Materials Engineering, Southwest Jiaotong University, 610031, Chengdu Sichuan, People's Republic of China

    S. K. Liu (Professor) & J. Zhang (Assistant)

Authors
  1. S. K. Liu
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  2. J. Zhang
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This paper is based on a presentation made in the symposium “International Conference on Bainite” presented at the 1988 World Metals Congress in Chicago, IL, on September 26 and 27, 1988, under the auspices of the ASM INTERNATIONAL Phase Transformations Committee and the TMS Ferrous Metallurgy Committee.

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Liu, S.K., Zhang, J. The influence of the Si and Mn concentrations on the kinetics of the bainite transformation in Fe-C-Si-Mn alloys. Metall Trans A 21, 1517–1525 (1990). https://doi.org/10.1007/BF02672566

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