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Cyclic crack resistance of rotor steel as a function of loading conditions

  • Strength Properties
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Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    At a cyclic loading frequency of 50 Hz corresponding to the nominal frequency of rotation of rotors of two-pole turbogenerators, hydrogen does not have a negative effect on cyclic crack resistance.

  2. 2.

    At low loading frequencies (less than 10 Hz) a sharp reduction is observed in the growth of fatigue cracks in hydrogen-saturated rotor steel, causing a need to reduce the length of operation of rotors with a low rotation frequency in the operation of hydrogen-cooled turbogenerators.

  3. 3.

    The frequency of low-cycle loading has an independent effect on the life of rotor steel in air as well as in water.

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Literature cited

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Authors
  1. A. I. Balitskii
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  2. Yu. A. Boichenko
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  3. A. V. Sosnin
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  4. N. A. Shokov
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Additional information

Decreased.

Leningrad Manufacturing Association of Electrical Machine-Construction “Élektrosila”. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, pp. 19–21, No. 4, April, 1987.

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Balitskii, A.I., Boichenko, Y.A., Sosnin, A.V. et al. Cyclic crack resistance of rotor steel as a function of loading conditions. Met Sci Heat Treat 29, 266–269 (1987). https://doi.org/10.1007/BF00769425

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  • DOI: https://doi.org/10.1007/BF00769425

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