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Cyclic strength of precipitation-hardened steel after strain hardening and high-temperature tempering

  • Strength Properties
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Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    The fatigue limit and the low-cycle fatigue strength of precipitation-hardening steels after strain hardening and high-temperature tempering are three times higher than for ordinary carbon steels subjected to the same treatment.

  2. 2.

    The high cyclic strength after this treatment is due to the substantially lesser tendency of precipitation-hardening steel to relax first-order compressive stresses in the surface layer during cyclic tests and the stability of the substructure.

  3. 3.

    The combination of precipitation hardening, surface hardening, and repeated hightemperature tempering makes it possible to obtain a heat-resistant material (400–450°) with a fatigue limit (at room temperature) around 100 kgf/mm2.

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Literature cited

  1. A. N. Marshalkin and Yu. A. Kulakov, ,“Increase in the fatigue strength of structural steel,” Byull. TsNIIChERMET, No. 12, 48 (1973).

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Authors
  1. A. N. Marshalkin
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  2. Yu. A. Kulakov
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Additional information

Moscow Evening Metallurgical Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 6, pp. 54–57, June, 1977.

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Marshalkin, A.N., Kulakov, Y.A. Cyclic strength of precipitation-hardened steel after strain hardening and high-temperature tempering. Met Sci Heat Treat 19, 478–480 (1977). https://doi.org/10.1007/BF00713087

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  • DOI: https://doi.org/10.1007/BF00713087

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