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A numerical model coupling phase transformation to predict microstructure evolution and residual stress during quenching of 1045 steel

Author

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  • Esfahani, Ali Kouhi
  • Babaei, Mahdi
  • Sarrami-Foroushani, Saeid

Abstract

This article deals with the numerical simulation of quenching in low alloy steels based on finite element method adapting the effect of stress on the martensitic transformation to predict temperature history, microstructure evolution, and internal stresses. By superimposing the cooling curves of selected points on the CCT diagram of 1045 steel, verification of the simulated microstructures in the cylindrical specimen is carried out by comparing it with the micrographs of microstructures. Afterward, steel gears are treated in two cooling mediums to predict volume changes of gear samples quenched in oil and water. A comparison of the experimental results with those of numerical simulation generates an overall good agreement and indicates the well-demonstrated predictive capability of the model associated with kinetics of phase transformation, thermo-physical properties, and latent heat release for real-time quenching applications.

Suggested Citation

  • Esfahani, Ali Kouhi & Babaei, Mahdi & Sarrami-Foroushani, Saeid, 2021. "A numerical model coupling phase transformation to predict microstructure evolution and residual stress during quenching of 1045 steel," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 179(C), pages 1-22.
    • Handle: RePEc:eee:matcom:v:179:y:2021:i:c:p:1-22
    DOI: 10.1016/j.matcom.2020.07.016
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