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Effect of heat treatment schedules on the resistance to brittle failure of low-alloy plate steel 09G2S

  • Heat Treatment Technology
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Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    Preparation in plate steel 09G2S with water quenching and tempering at 600–680°C of a structure of temper sorbite and polygonal ferrite provides compared with normalizing (ferrite + pearlite) a marked increase in its strength properties and resistance to brittle failure.

  2. 2.

    The greatest cold resistance and specific work for ductile crack propagation of plate steel 09G2S occurs after quenching and tempering at 630±20°C.

  3. 3.

    With the aim of improving the reliability of blast furnace jackets against formation of extended brittle cracks it is desirable to use steel 09G2S for the uncooled zone of the bottom in the temper hardened condition, which exhibits improved strength and cold resistance compared with normalized steel.

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Literature cited

  1. V. K. Vostrov, E. N. Basko, V. M. Goritskii, and G. P. Kandakov, "Crack formation in blast furnace jackets," Stroit. Mekhan. Raschet Sooruzh., No. 2, 16–19 (1987).

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  2. V. M. Goritskii and D. P. Khromov, "Evaluation of crack propagation resistance from the results of impact strength tests," Zavod. Lab.,50, No. 7, 70–72 (1984).

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Authors
  1. V. M. Goritskii
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  2. G. R. Shneiderov
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  3. T. G. Zaitseva
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Additional information

Central Scientific-Research and Planning Institute of Metal Building Structures. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 12, pp. 2–5, December, 1990.

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Goritskii, V.M., Shneiderov, G.R. & Zaitseva, T.G. Effect of heat treatment schedules on the resistance to brittle failure of low-alloy plate steel 09G2S. Met Sci Heat Treat 32, 891–895 (1990). https://doi.org/10.1007/BF00700076

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  • DOI: https://doi.org/10.1007/BF00700076

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