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Strength of Materials

, Volume 12, Issue 9, pp 1133–1138 | Cite as

Effect of temperature on the mechanical properties and strain hardening of low-carbon steels 15Kh2MFA and 15Kh2MNFA

  • V. V. Pokrovskii
  • Yu. S. Skorenko
  • V. N. Rudenko
Scientific-Technical Section
  • 18 Downloads

Conclusions

  1. 1.

    Improvement of the method given in [1] made it possible to determine the mechanical characteristics and plot the true strain diagram for steels in the low-temperature range down to −196 °.

     
  2. 2.

    The behavior of the true strain diagram and the type of temperature dependence of the breaking stress for steels 15Kh2MFA and 15Kh2MNFA are due to a difference in the fracture mechanism in the temperature range from −196 to 350 °. The reason for the sharp reduction of the stress Sk with dropping temperatures is shearing in planes parallel to the axis of the sample.

     
  3. 3.

    The characteristics of strain hardening change substantially for steels 15Kh2MNFA and 15Kh2MNFA with decreasing temperatures.

     

Keywords

Mechanical Property Fracture Mechanism Strain Hardening Mechanical Characteristic True Strain 
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.
    V. N. Rudenko and A. S. Spivakov, “True characteristics of strength of some heat-resistant alloys at high temperatures,” Probl. Prochn., No. 5, 77–80 (1971).Google Scholar
  2. 2.
    V. N. Rudenko, “Device for recording strain diagrams during tensile tests,” Probl. Prochn., No. 8, 118–120 (1971).Google Scholar
  3. 3.
    V. N. Rudenko and A. S. Spivakov, Method of Investigating the Effect of Cyclic Loads on the True Strength of Structural Materials at High Temperatures [in Russian], Inform. Pis'mo, No. 54 (1974).Google Scholar
  4. 4.
    T. Ekobori, Physics and Fracture Mechanics and the Strength of Solids [in Russian], Metallurgiya, Moscow (1971).Google Scholar
  5. 5.
    J. Man and M. Holzman, “Microfracture and embrittlement of low-carbon steel,” Wissensihaftlishe Zeitschrift der Technishen Hohschule Otto von Guericke Magdeburg,15, No. 2 (1971).Google Scholar
  6. 6.
    Ya. Nemets, Rigidity and Strength of Steel Parts [in Russian], Mashinostroenie, Moscow (1970).Google Scholar
  7. 7.
    Ya. B. Fridman, Mechanical Properties of Metals [in Russian], Vol. 1, Mashinostroenie, Moscow (1974).Google Scholar
  8. 8.
    T. A. Gordeeva and I. P. Zhegina, Analysis of Fractures in Determining the Reliability of Materials [in Russian], Mashinostroenie, Moscow (1978).Google Scholar

Copyright information

© Plenum Publishing Corporation 1981

Authors and Affiliations

  • V. V. Pokrovskii
    • 1
  • Yu. S. Skorenko
    • 1
  • V. N. Rudenko
    • 1
  1. 1.Institute of Strength ProblemsAcademy of Sciences of the Ukrainian SSRUkraine

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