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Metal Science and Heat Treatment

, Volume 18, Issue 6, pp 541–543 | Cite as

Impact-fatigue strength of carburized parts in relation to the composition of the core

  • G. V. Kozyrev
  • G. V. Toporov
  • V. P. Pershin
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Conclusions

  1. 1.

    The effect of core properties on the impact-fatigue resistance of carburized samples differs in relation to the design of the sample (with or without a stress concentrator) and the stress level.

     
  2. 2.

    For samples (machine parts) without a stress concentrator an increase of core hardness leads to an increase of resistance to impact-cyclic loads at low stress levels. At high stresses there is almost no difference in the impact-fatigue resistance.

     
  3. 3.

    With a stress concentrator the impact-fatigue strength is high only with high ductility of the core.

     

Keywords

Ductility Stress Level High Stress Core Hardness Stress Concentrator 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Literature cited

  1. 1.
    S. S. Ermakov, "Carbon concentration in carburized steels," Metal. i Term. Obrabotka Metal., No. 7, 43 (1957).Google Scholar
  2. 2.
    E. G. Perel'man, "The logical selection of steels for carburized parts," in: Modern Alloys and Their Heat Treatment [in Russian], Mashgiz, Moscow (1958), p. 93.Google Scholar
  3. 3.
    N. F. Vyaznikov and S. S. Ermakov, "Method of investigating impact fatigue," Zavod. Lab., No. 9, 1095 (1957).Google Scholar
  4. 4.
    N. K. Ipatov, "Method of fatigue testing by repeated impact bending," Zavod. Lab., No. 8, 970 (1954).Google Scholar
  5. 5.
    A. N. Minkevich, Chemicothermal Treatment of Metals and Alloys [in Russian], Mashinostroenie, Moscow (1965), p. 492.Google Scholar
  6. 6.
    I. S. Kozlovskii, A. D. Assonov, and Yu. F. Orzhekhovskii, "New carburizing steel 30KhGT for automotive gears," Avtomobil'naya i Traktornaya Promyshlennost', No. 8, 3 (1954).Google Scholar
  7. 7.
    M. A. Anuchin and Yu. A. Volkov, "Operation of surface-hardened parts with a limited number of repeated impacts," in: Some Problems of the Technology of Surface Hardening [in Russian], Trudy MVTU im. Baumana, No. 66 (1955), p. 12.Google Scholar
  8. 8.
    H. Neuber Stress Concentrations [Russian translation], OGIZ, Gostekhizdat (1947).Google Scholar
  9. 9.
    L. A. Kolodeznyi et al., "Impact-fatigue resistance of malleable iron at low temperatures," Avtomobil'naya Promshlennost', No. 1, 38 (1969).Google Scholar
  10. 10.
    I. V. Kudryavtsev et al. "Effectiveness of strengthening steels by strain hardening when subject to impact-cyclic loads at low temperatures," in: Strengthening of Machine Parts [in Russian], TsNIITMASh, No. 3, Mashinostroenie, Moscow (1972), p. 200.Google Scholar

Copyright information

© Plenum Publishing Corporation 1976

Authors and Affiliations

  • G. V. Kozyrev
  • G. V. Toporov
  • V. P. Pershin

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