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Microstructure and Mechanical Properties of Aircraft Steel 30Kh2GSN2VM

Metal Science and Heat Treatment volume 64, pages 465–473 (2022)Cite this article

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Special features of structure formation in steel 30Kh2GSN2BM under continuous cooling from the temperature of complete austenitization and under an isothermal hold in the temperature range of bainitic transformation are studied. Metallographic and x-ray diffraction phase analysis are performed and tensile and impact bending tests of specimens are conducted. The data of the dilatometric and metallographic studies are used to plot a thermokinetic diagram of transformation of supercooled austenite. The laws of variation of mechanical properties of the steel after oil quenching and tempering and after normalizing in air and different variants of isothermal quenching are determined.

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The work has been performed within grant No. 22-29-00105 of the Russian Scientific Foundation.

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Authors and Affiliations

  1. Ural Federal University after the First President of Russia B. N. Eltsyn, Ekaterinburg, Russia

    M. V. Maisuradze, D. I. Lebedev, M. A. Ryzhkov & D. A. Makarov

  2. Ural State Mining University, Ekaterinburg, Russia

    A. A. Kuklina

  3. Mikheev Institute for Metals Physics of the Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia

    D. I. Lebedev

Authors
  1. M. V. Maisuradze
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  2. A. A. Kuklina
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  3. D. I. Lebedev
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  4. M. A. Ryzhkov
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  5. D. A. Makarov
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Correspondence to M. V. Maisuradze.

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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 8, pp. 45 – 53, August, 2022.

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Maisuradze, M.V., Kuklina, A.A., Lebedev, D.I. et al. Microstructure and Mechanical Properties of Aircraft Steel 30Kh2GSN2VM. Met Sci Heat Treat 64, 465–473 (2022). https://doi.org/10.1007/s11041-022-00832-8

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  • DOI: https://doi.org/10.1007/s11041-022-00832-8

Key words

  • steel
  • heat treatment
  • microstructure
  • strength
  • toughness
  • thermokinetic diagram
  • bainite
  • retained austenite
  • isothermal quenching