Advances in materials Research

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Dynamic recrystallization and microstructure evolution of a Nb-V microalloyed forging steel during hot deformation

  • Zhao, Yang (School of Materials and Metallurgy, Northeastern University) ;
  • Chen, Liqing (State Key Laboratory of Rolling and Automation, Northeastern University) ;
  • Liu, Xianghua (Research Institute of Science and Technology, Northeastern University)
  • Received : 2014.06.17
  • Accepted : 2014.12.27
  • Published : 2014.12.25
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Abstract

In this study, a forging steel alloyed with both Nb and V was used as experimental material and the hot deformation behavior has been studied for this steel by conducting the compressive deformation test at temperature of $900-1150^{\circ}C$ and strain rate of $0.01-0.01s^{-1}$ in a MMS-300 thermo-mechanical simulator. The microstructure evolution, particularly the dynamically recrystallized microstructure, of the experimental steel at elevated temperatures, strain rates and strain levels, was characterized by optical microstructural observation and the constitutive equation in association with the activation energy and Zener-Hollomon parameter. The curves of strain hardening rate versus stress were used to determine the critical strain and peak strain, and their relation was connected with Zener-Hollomon parameter. Under the conditions of processing temperature $900^{\circ}C$ and strain rate $0.01s^{-1}$, the dynamic recrystallization took place and the austenite grain size was refined from $164.5{\mu}m$ to $28.9{\mu}m$.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China

References

  1. Badjena, S.K. (2014), "Dynamic recrystallization behavior of vanadium micro-alloyed forging medium carbon steel", ISIJ Int., 54(3), 650-656. https://doi.org/10.2355/isijinternational.54.650
  2. Badjena, S.K. and Park, J.K. (2012), "Effect of particles on the dynamic recrystallization behavior of Al-V-N micro-alloyed medium carbon steel", Mater. Sci. Eng. A, 548, 126-133. https://doi.org/10.1016/j.msea.2012.03.102
  3. Chen, L.Q., Zhao, Y., Xu, X.Q. and Liu, X.H. (2010), "Dynamic recrystallization and precipitation behaviors of a kind of low carbon V-microalloyed steel", Acta Metall. Sin., 46(10), 1215-1222. (in Chinese)
  4. Liu, Y.G., Li, M.Q. and Luo, J. (2013), "The modelling of dynamic recrystallization in the isothermal compression of 300M steel", Mater. Sci. Eng. A, 574, 1-8. https://doi.org/10.1016/j.msea.2013.03.011
  5. McQueen, H.J. and Ryan, N.D. (2002), "Constitutive analysis in hot working", Mater. Sci. Eng. A, 322(1-2), 43-63. https://doi.org/10.1016/S0921-5093(01)01117-0
  6. Medina, S.F. and Hernandez, C.A. (1996), "General expression of the Zener-Hollomon parameter as a function of the chemical composition of low alloy and microalloyed steels", Acta Mater., 44(1), 137-148. https://doi.org/10.1016/1359-6454(95)00151-0
  7. Mejia, I., Bedolla-Jacuinde, A., Maldonado, C. and Cabrera, J.M. (2011), "Determination of the critical conditions for the initiation of dynamic recrystallization in boron microalloyed steels", Mater. Sci. Eng. A, 528(12), 4133-4140. https://doi.org/10.1016/j.msea.2011.01.102
  8. Meysami, M. and Mosavi, S.A.A.A. (2011), "Study on the behavior of medium carbon vanadium microalloyed steel by hot compression test", Mater. Sci. Eng. A, 528(7-8), 3049-3055. https://doi.org/10.1016/j.msea.2010.11.093
  9. Olasolo, M., Uranga, P., Rodriguez-Ibabe, J.M. and Lopez, B. (2011), "Effect of austenite microstructure and cooling rate on transformation characteristics in a low carbon Nb-V microalloyed steel", Mater. Sci. Eng. A, 528(6), 2599-2569.
  10. Pandit, A., Murugaiyan, A., Podder, A.S., Haldar, A., Bhattacharjee, D., Chandra, S. and Ray, R.K. (2005), "Strain induced precipitation of complex carbonitrides in Nb-V and Ti-V microalloyed steels", Scr. Mater., 53(11), 1309-1314. https://doi.org/10.1016/j.scriptamat.2005.07.003
  11. Poliak, E.I. and Jonas, J.J. (2003), "Initiation of dynamic recrystallization in constant strain rate hot deformation", ISIJ Int., 43(5), 684-691. https://doi.org/10.2355/isijinternational.43.684
  12. Prasad, S.N. and Sarma, D.S. (2005), "Influence of thermomechanical treatment on microstructure and mechanical properties of a microalloyed (Nb+V) weather-resistant steel", Mater. Sci. Eng. A, 399(1-2), 161-172. https://doi.org/10.1016/j.msea.2005.01.049
  13. Rao, P.M., Sarma, V.S. and Sankaran, S. (2013), "Development of high strength and ductile ultra fine grained dual phase steel with nano sized carbide precipitates in a V-Nb microalloyed steel", Mater. Sci. Eng. A, 568, 171-175. https://doi.org/10.1016/j.msea.2012.12.084
  14. Sellars C.M. and Tegart W.J.M. (1966), "Relationship between strength and structure in deformation at elevated temperatures", Mem. Sci. Rev. Met., 63(9), 731-745.
  15. Wei, H.L., Liu, G.Q., Xiao, X. and Zhang, M.H. (2013), "Dynamic recrystallization behavior of a medium carbon vanadium microalloyed steel", Mater. Sci. Eng. A, 573, 215-221. https://doi.org/10.1016/j.msea.2013.03.009
  16. Wei, H.L., Liu, G.Q., Zhao, H.T. and Zhang, M.H. (2014), "Effect of carbon content on hot deformation behaviors of vanadium microalloyed steels", Mater. Sci. Eng. A, 596, 112-120. https://doi.org/10.1016/j.msea.2013.12.063
  17. Zeng, Z.Y., Chen, L.Q., Zhu, F.X. and Liu, X.H. (2011), "Dynamic recrystallization behavior of a heat-resistant martensitic stainless steel 403Nb during hot deformation", J. Mater. Sci. Technol. 27(10), 913-919. https://doi.org/10.1016/S1005-0302(11)60164-3
  18. Zhao B.C., Zhao, T., Li, G.Y. and Lu, Q. (2014), "The kinetics of dynamic recrystallization of a low carbon vanadium-nitride microalloyed steel", Mater. Sci. Eng. A, 604, 117-121. https://doi.org/10.1016/j.msea.2014.03.019
  19. Zhao, Y., Chen, L.Q., Yang, F.P. and Liu, X.H. (2012), "Flow stress model of 20Mn2SiV micro-alloyed forging steel during hot deformation", J. Northeast. Uni. (Natural Science), 33(10), 1419-1423. (in Chinese)

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