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The fatigue resistance of structural steels at low temperatures

  • Strength Characteristics
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Metal Science and Heat Treatment Aims and scope

Conclusion

  1. 1.

    With reduction of the testing temperature from +20 to −60°C the fatigue limit of samples of steels 45 and 40Kh increased. The effect of the scale factor with lowering of the temperature to −60°C was more pronounced; the fatigue limit decreased by 5–7% for samples 18 mm in diameter and 7–8% for samples 38 mm in diameter.

  2. 2.

    The experimental data on the fatigue limits of improved steels 45 and 40Kh are described by equations of similitude with P=50% at room temperature and low temperature. The equations obtained can be used to determine the average values of the fatigue limits for parts operating at low temperatures (down to −60°C).

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Literature cited

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Authors
  1. N. A. Drozdov
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  2. V. P. Tibanov
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Additional information

N. E. Bauman Moscow Technical College. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 12, pp. 46–49, December, 1971.

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Drozdov, N.A., Tibanov, V.P. The fatigue resistance of structural steels at low temperatures. Met Sci Heat Treat 13, 1041–1043 (1971). https://doi.org/10.1007/BF00665003

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  • DOI: https://doi.org/10.1007/BF00665003

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