Skip to main content
SpringerLink
Log in

Effect of austenitic state on microstructure and mechanical properties of martensite/bainite steel

  • Article
  • Published:
Journal of Materials Research Aims and scope Submit manuscript

Abstract

Various heat treatments and thermal simulation with different austenitizing temperatures and austenite deformation were applied on a bearing steel to obtain various austenitic state. The effect of austenitic state on microstructure of martensite/bainite (M/B) dual phase steel and its mechanical property has been investigated via microstructure observation and kinetic analysis. The results show that the M/B steels austenitized at 900 and 950 °C have better comprehensive performance compared with the steels austenitized at 850 and 1050 °C. The refined microstructure can be obtained after deformation, and the heavy deformation and low deformation temperature are useful for refining the microstructure. The bainite lath is longer and has well-directional arrangement at high austenitizing temperature with the same deformation. Furthermore, austenite deformation can improve the nucleation ratio, reduce incubation process, and affect the kinetics of bainite transformation significantly.

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

Access this article

Log in via an institution

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

Instant access to the full article PDF.

Institutional subscriptions

FIG. 1
FIG. 2
FIG. 3
FIG. 4
FIG. 5
FIG. 6
FIG. 7
FIG. 8
FIG. 9
FIG. 10
FIG. 11

Similar content being viewed by others

References

  1. Y. Ohmori, H. Ohtani, and T. Kunitake: Tempering of the bainite and the bainite/martensite duplex structure in a low-carbon low-alloy steel. Met. Sci. 8(1), 357 (1974).

    Article  CAS  Google Scholar 

  2. D. Quidort and Y. Bréchet: The role of carbon on the kinetics of bainite transformation in steels. Scr. Mater. 47(3), 151 (2002).

    Article  CAS  Google Scholar 

  3. V.S. Warke, R.D. Sisson, Jr., and M.M. Makhlouf: The effect of porosity on the austenite to bainite transformation in powder metallurgy steels. J. Mater. Res. 24(10), 3213 (2009).

    Article  CAS  Google Scholar 

  4. M. Umemoto, T. Furuhara, and I. Tamura: Effects of austenitizing temperature on the kinetics of bainite at constant austenite grain size in Fe-C and Fe-Ni-C alloys. Acta Metall. 34(11), 2235 (1986).

    Article  CAS  Google Scholar 

  5. S. Van der Zwaag and J. Wang: A discussion on the atomic mechanism of the bainitic reaction in TRIP steels. Scr. Mater. 47(3), 169 (2002).

    Article  Google Scholar 

  6. H.Z. Zhao, Y.K. Lee, X.H. Liu, and G.D. Wang: The effects of austenite grain size on bainite transformation kinetics in AISI 4340 steel. Trans. Metal Heat Treat. 27(2), 59 (2006).

    Google Scholar 

  7. Y. Matsumura and H. Yada: Evolution of ultrafine-grained ferrite in hot successive deformation. Trans. ISIJ 27(6), 492 (1987).

    Article  CAS  Google Scholar 

  8. H. Yada, C.M. Li, and H. Yamagata: Dynamic γ→α transformation during hot deformation in iron-nickel-carbon alloys. ISIJ Int. 40(2), 200 (2000).

    Article  CAS  Google Scholar 

  9. X.J. Jin, N. Min, and K.Y. Zheng: The effect of austenite deformation on bainite formation in an alloyed eutectoid steel. Mater. Sci. Eng. A 438, 170 (2006).

    Article  Google Scholar 

  10. P.H. Shipway and H.K.D.H. Bhadeshia: The effect of small stresses on the kinetics of the bainite transformation. Mater. Sci. Eng. A 201(1), 143 (1995).

    Article  Google Scholar 

  11. R. Freiwillig, J. Kudrman, and P. Chráska: Bainite transformation in deformed austenite. Metall. Trans. A 7(8), 1091 (1976).

    Article  Google Scholar 

  12. K. Tsuzaki, T. Ueda, K. Fujiwara, and T. Maki: New Materials and Processes for the Future: Proceedings of the 1st Japan International SAMPE Symposium and Exhibition (Society for the Advancement of Materials and Process Engineering, Chiba, Japan, 1989); p. 699.

    Google Scholar 

  13. C.X. Li, H. Feng, M.K. Kang, and Y.W. Mou: The effect of high-temperature thermo mechanical treatment (HTMT) on the strengthening and toughening. Trans. Metal Heat Treat. 8(2), 25 (1987).

    CAS  Google Scholar 

  14. Y.Z. Liu, Z.Y. Wang, and Z.Q. Zhang: Influence of heat treatment process on mechanical properties and microstructure of 55SiMoV steel. Heat Treat. Metals 2, 10 (1996).

    CAS  Google Scholar 

  15. H.G. Lambers, S. Tschumak, H.J. Maier, and D. Canadinc: Role of austenitization and pre-deformation on the kinetics of the isothermal bainitic transformation. Metall. Mater. Trans. A 40(6), 1355 (2009).

    Article  Google Scholar 

  16. Z.Y. Liu, G.D. Wang, and Q. Zhang: Thermodynamic calculations on the deformed austenite–proeutectoid ferrite transformation. J. Iron Steel Res. 6(4), 31 (1996).

    Google Scholar 

  17. H.K.D.H. Bhadeshia: Bainite in Steel (The Institute of Materials, London, 1992), p. 214.

    Google Scholar 

  18. C.Y. Huang, J.R. Yang, and S.C. Wang: Effect of compressive deformation on the transformation behavior of an ultra-low-carbon bainitic steel. Mater. Trans. JIM 34, 658 (1993).

    Article  CAS  Google Scholar 

  19. A.T. Davenport, R.E. Miner, and R.A. Kot: The Hot Deformation of Austenite, J.B. Ballance ed.; AIME, New York, 1977; p. 186.

    Google Scholar 

  20. K.C. Russel: Phase Transformations (ASM, Metals Park, Ohio, 1970), p. 219.

    Google Scholar 

  21. W.F. Lange, M. Enomoto, and H.I. Aaronson: The kinetics of ferrite nucleation at austenite grain boundaries in Fe-C alloys. Metall. Trans. A 19(3), 427 (1988).

    Article  Google Scholar 

Download references

ACKNOWLEDGMENTS

The authors wish to thank Laiwu Iron and Steel Group Co., Ltd., for supplying the steels used in test. This work was also financially supported by Science and Technology Development Planning Program of Shandong Province (2011GGX10202), College Independent Innovation Program of Ji’nan (201102048 and 201202073).

Author information

Authors and Affiliations

  1. School of Materials Science and Engineering, Shandong University, Ji’nan, 250061, China

    Lei Tian, Qing Ao & Shengli Li

Authors
  1. Lei Tian
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Qing Ao
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Shengli Li
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Shengli Li.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Tian, L., Ao, Q. & Li, S. Effect of austenitic state on microstructure and mechanical properties of martensite/bainite steel. Journal of Materials Research 29, 887–895 (2014). https://doi.org/10.1557/jmr.2014.55

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1557/jmr.2014.55

Search

Navigation