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<p>An improved method has been proposed for predicting the microstructure formed in alloyed steels during austempering and quenching-partitioning in the temperature range of martensitic transformation. The temperature dependence of the coefficient <i>n</i> of the Austin–Rickett equation for modeling the kinetics of isothermal bainite transformation at temperatures below <i>M</i><sub>s</sub> was established. The developed method also considers the equilibrium of the <i>α</i>- and <i>γ</i>-phases and the formation of carbides. It is shown that the proposed method allows an increase in the adequacy of the microstructure prediction compared to the currently applied method.</p>

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Novel Approach to Microstructure Prediction of the Steels Isothermally Hardened at Temperature Below MS

  • 期刊论文

  • 发表日期：

    2025年1月2日

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  • Mikhail V. Maisuradze,
  • Aleksandra A. Kuklina

摘要

An improved method has been proposed for predicting the microstructure formed in alloyed steels during austempering and quenching-partitioning in the temperature range of martensitic transformation. The temperature dependence of the coefficient n of the Austin–Rickett equation for modeling the kinetics of isothermal bainite transformation at temperatures below Ms was established. The developed method also considers the equilibrium of the α- and γ-phases and the formation of carbides. It is shown that the proposed method allows an increase in the adequacy of the microstructure prediction compared to the currently applied method.