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The resistance to crack propagation of precipitation-hardening austenitic steel

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Conclusions

  1. 1.

    The crack propagation resistance, determined by Irwin's criterion K1C, increases with the nickel and manganese concentrations in precipitation-hardening austenitic steels.

  2. 2.

    When austenitic steel is alloyed with chromium the variation of K1C with the concentration of the alloying element is characterized by a peak at 3.5% Cr.

  3. 3.

    The use of data concerning the effect of alloying on the crack propagation resistance makes it posble to optimize the strength characteristics of precipitation-hardening austenitic steels more precisely.

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Literature cited

  1. 1.

    V. S. Ivanova et al., Fatigue and Brittleness of Metallic Materials [in Russian], Nauka, Moscow (1968).

  2. 2.

    J. Christian et al., Advances in Cryogenic Engng.,10 (1965).

  3. 3.

    V. M. Blinov et al., Metal. i Term. Obrabotka Metal., No. 5 (1970).

  4. 4.

    A. P. Gulyaev et al., Metal. i Term. Obrabotka Metal., No. 9 (1967).

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Additional information

A. A. Baikov Institute of Metallurgy. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 1, pp. 52–54, January, 1971.

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Kovneristyi, Y.K., Blinov, V.M. The resistance to crack propagation of precipitation-hardening austenitic steel. Met Sci Heat Treat 13, 54–55 (1971). https://doi.org/10.1007/BF00663780

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Keywords

  • Nickel
  • Chromium
  • Manganese
  • Propagation Resistance
  • Alloy Element