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Formation of Microstructure and Properties During Isothermal Treatment of Aircraft Building Steel

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Features of the microstructure formation in steel 30Cr2MnSiNi2WMo (VL-1) are studied with various heat treatment regimes: stepwise quenching at temperature below Ms (quenching and partitioning), and isothermal quenching for bainite. It is shown that the calculated optimum temperature of stepwise quenching does not provide the predicted amount of stable retained austenite in the test steel microstructure. Mechanical properties of steel 30Cr2MnSiNi2WMo after implementation of stepwise and isothermal quenching are determined. It is established that after isothermal heat treatment the steel studied exhibits reduced viscoplastic properties compared with a condition after bulk hardening and tempering.

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Acknowledgement

Work was conducted with financial support of the Russian Federation Government statement No. 2011, contract No. 02.A03.21.0006 within the scope a state assignment of the RF Ministry of Education and Science, project No. 11.1465.2014/K.

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Authors and Affiliations

  1. FGAOU VO B. N. Yeltsin Ural Federal University, Ekaterinburg, Russia

    M. V. Maisuradze, Yu. V. Yudin & A. A. Kuklina

  2. M. N. Mikheev Institute of Metal Physics, Ural Branch of Russian Academy of Sciences, Ekaterinburg, Russia

    D. I. Lebedev

Authors
  1. M. V. Maisuradze
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  2. Yu. V. Yudin
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  3. A. A. Kuklina
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  4. D. I. Lebedev
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Corresponding author

Correspondence to M. V. Maisuradze.

Additional information

Translated from Metallurg, Vol. 65, No. 9, pp. 67–76, September, 2021. Russian DOI: 00260827_2021_09_67.

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Maisuradze, M.V., Yudin, Y.V., Kuklina, A.A. et al. Formation of Microstructure and Properties During Isothermal Treatment of Aircraft Building Steel. Metallurgist 65, 1008–1019 (2022). https://doi.org/10.1007/s11015-022-01241-1

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  • DOI: https://doi.org/10.1007/s11015-022-01241-1

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