Hong-liang Fan, Ai-min Zhao, Qing-chun Li, Hui Guo,  and Jian-guo He, Effects of ausforming strain on bainite transformation in nanostructured bainite steel, Int. J. Miner. Metall. Mater., 24(2017), No. 3, pp. 264-270. https://doi.org/10.1007/s12613-017-1404-7
Cite this article as:
Hong-liang Fan, Ai-min Zhao, Qing-chun Li, Hui Guo,  and Jian-guo He, Effects of ausforming strain on bainite transformation in nanostructured bainite steel, Int. J. Miner. Metall. Mater., 24(2017), No. 3, pp. 264-270. https://doi.org/10.1007/s12613-017-1404-7
Research Article

Effects of ausforming strain on bainite transformation in nanostructured bainite steel

+ Author Affiliations
  • Corresponding author:

    Ai-min Zhao    E-mail: aimin.zhao@ustb.edu.cn

  • Received: 13 July 2016Revised: 20 September 2016Accepted: 22 September 2016
  • The effects of ausforming strain on bainite transformation in high-carbon low-alloy nanobainite steel were investigated using a Gleeble 3500 thermomechanical simulator machine. The bainite transformation speed at 300℃ was found to be accelerated by ausforming at 300, 600, and 700℃ under applied strains ranging from 10% to 50% followed by isothermal transformation at 300℃. The ausformed bainite volume fraction varied with the ausforming strain because of the mechanical stabilization of the deformed austenite. Ausforming at low temperatures not only enhanced the bainite ferrite volume fraction but also refined the microstructure substantially. Although the amount of bainite ferrite might have been reduced with increasing strain, the microstructures were refined by ausforming.
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  • [1]
    H.K.D.H. Bhadeshia, Bainite in Steels, 2nd Ed, The Institute of Materials, University of Cambridge, London, 2001, p. 378.
    [2]
    R. Freiwillig, J. Kudrman, and P. Chráska, Bainite transformation in deformed austenite, Metall. Trans. A, 7(1976), No. 8, p. 1091.
    [3]
    J.R. Strife, M.J. Carr, and G.S. Ansell, The effect of austenite prestrain above the Md temperature on the martensitic transformation in Fe-Ni-Cr-C alloys, Metall. Trans. A, 8(1977), No. 9, p. 1471.
    [4]
    K. Tsuzaki, S.I. Fukasaku, Y. Tomota, and T. Maki, Effect of prior deformation of austenite on the γ→ε martensitic transformation in Fe-Mn alloys, Mater. Trans. JIM, 32(1991), No. 3, p. 222.
    [5]
    F.G. Caballero, H.K.D.H. Bhadeshia, K.J.A. Mawella, D.G. Jones, and P. Brown, Very strong low temperature bainite, Mater. Sci. Technol., 18(2002), No. 3, p. 279.
    [6]
    C. García-Mateo, F.G. Caballero, and H.K.D.H. Bhadeshia, Development of hard bainite, ISIJ Int., 43(2003), No. 8, p. 1238.
    [7]
    H.K.D.H. Bhadeshia, Nanostructured bainite, Proc. R. Soc. A, 466(2010), p. 3.
    [8]
    H.K.D.H. Bhadeshia, The first bulk nanostructured metal, Sci. Technol. Adv. Mater., 14(2013), No. 1, art. No. 014202.
    [9]
    W. Gong, Y. Tomota, M.S. Koo, and Y. Adachi, Effect of ausforming on nanobainite steel, Scripta. Mater., 63(2010), No. 8, p. 819.
    [10]
    W. Gong, Y. Tomota, Y. Adachi, A.M. Paradowska, J.F. Kelleher, and S.Y. Zhang, Effects of ausforming temperature on bainite transformation, microstructure and variant selection in nanobainite steel, Acta Mater., 61(2013), No. 11, p. 4142.
    [11]
    M. Zhang, Y.H. Wang, C.L. Zheng, F.C. Zhang, and T.S. Wang, Effects of ausforming on isothermal bainite transformation behaviour and microstructural refinement in medium-carbon Si-Al-rich alloy steel, Mater. Des., 62(2014), p. 168.
    [12]
    J.G. He, A.M. Zhao, C. Zhi, and H.L. Fan, Acceleration of nanobainite transformation by multi-step ausforming process, Scripta Mater., 107(2015), p. 71.
    [13]
    W.S. Li, H.Y. Gao, Z.Y. Li, H. Nakashima, S. Hata, and W.H. Tian, Effect of lower bainite/martensite/retained austenite triplex microstructure on the mechanical properties of a low-carbon steel with quenching and partitioning process, Int. J. Miner. Metall. Mater., 23(2016), No. 3, p. 303.
    [14]
    Z.W. Hu, G. Xu, H.J. Hu, L. Wang, and Z.L. Xue, In situ measured growth rates of bainite plates in an Fe-C-Mn-Si superbainitic steel, Int. J. Miner. Metall. Mater., 21(2014), No. 4, p. 371.
    [15]
    A.A. Shirzadi, H. Abreu, L. Pocock, D. Klobčuar, P.J. Withers, and H.K.D.H. Bhadeshia, Bainite orientation in plastically deformed austenite, Int. J. Mater. Res., 100(2009), No. 1, p. 40.
    [16]
    J.G. He, A.M. Zhao, Y. Huang, C. Zhi, and F.Q. Zhao, Acceleration of bainite transformation at low temperature by warm rolling process, Mater. Today Proc., 2(2015), Suppl. 2, p. S289.
    [17]
    S.B. Singh and H.K.D.H. Bhadeshia, Quantitative evidence for mechanical stabilisation of bainite, Mater. Sci. Technol., 12(1996), No. 7, p. 610.
    [18]
    P.H. Shipway and H.K.D.H. Bhadeshia, Mechanical stabilisation of bainite, Mater. Sci. Technol., 11(1995), No. 11, p. 1116.
    [19]
    R. Freiwillig, J. Kudrman, and P. Chráska, Bainite transformation in deformed austenite, Metall. Trans. A, 7(1976), No. 8, p. 1091.
    [20]
    H.J. Hu, H.S. Zurob, G. Xu, D. Embury, and G.R. Purdy, New insights to the effects of ausforming on the bainitic transformation, Mater. Sci. Eng. A, 626(2015), p. 34.
    [21]
    H.S. Yang and H.K.D.H. Bhadeshia, Uncertainties in dilatometric determination of martensite start temperature, Mater. Sci. Technol., 23(2007), No. 5, p. 556.
    [22]
    G. Xu, F. Liu, L. Wang, and H.J. Hu, A new approach to quantitative analysis of bainitic transformation in a superbainite steel, Scripta Mater., 68(2013), No. 11, p. 833.
    [23]
    S.B. Singh and H.K.D.H. Bhadeshia, Estimation of bainite plate-thickness in low-alloy steels, Mater. Sci. Eng. A, 245(1998), No. 1, p. 72.
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