Computer Simulation and Experimental Study of Isothermal Bainitic Transformation in Alloy Steels

The main factors responsible for the kinetics of isothermal bainitic transformation in alloy steels are determined using computer simulation of the solid-state phase transformation. The effect of the initial configuration of nuclei of the new phase in the volume of the metal on the parameters of the process of bainitic transformation is determined. Comparative analysis of the computed kinetics of phase transformation at different rates of nucleation of the new phase and of the experimentally observed bainite kinetics in steels 25G2S2N2MA, 300M and 50KhMFA is performed.

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The work has been performed with financial support of Act No. 211 of the Government of the Russian Federation, contract No. 02.A03.21.006, within a state assignment of the Ministry of Science and Higher Education of the Russian Federation, project No. 11.1465.2014/K.

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Correspondence to Yu. V. Yudin.

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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 7, pp. 60 – 67, July, 2020.

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Yudin, Y.V., Kuklina, A.A., Maisuradze, M.V. et al. Computer Simulation and Experimental Study of Isothermal Bainitic Transformation in Alloy Steels. Met Sci Heat Treat 62, 479–486 (2020). https://doi.org/10.1007/s11041-020-00588-z

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Key words

  • steel
  • bainite
  • kinetics
  • transformation
  • isothermal hold
  • computer simulation
  • KJMA equation
  • Austin–Rickett equation