Soviet Powder Metallurgy and Metal Ceramics

, Volume 24, Issue 9, pp 721–724 | Cite as

Cyclic strength of hard metals

  • N. N. Sereda
  • A. K. Gerikhanov
  • M. S. Koval'chenko
  • V. A. Tsyban'
  • L. G. Pedanov
Test Methods and Properties of Materials

Conclusions

The fatigue limit of the titanium carbide and tungsten carbide alloys investigated on a basis of 5·108 cycles lies in the range (20–30)·107 Pa, and is thus comparable with the endurance of type ShKh high-carbon (∼1% C-Mn-Si-Cr) ball-bearing steels. The strength and character of fracture of the hard metals are determined by the properties and structural state of their phase constituents. The highest strength is exhibited by tungsten carbide and titanium carbide alloys with evenly distributed equal-sized carbide grains. The character of fracture of the hard metals varies depending on their method of loading, from brittle in static loading to tough-and-brittle in cyclic loading. On time bases not exceeding 106 cycles titanium carbidehard metals are comparable in fatigue resistance to the standard tungsten-containing hard metals.

Keywords

Fatigue Titanium Carbide Brittle Tungsten 

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Literature cited

  1. 1.
    V. A. Kuz'menko, L. E. Matokhnyuk, G. G. Pisarenko, et al., Fatigue Tests at High Loading Frequencies [in Russian], Naukova Dumka, Kiev (1979).Google Scholar
  2. 2.
    S. V. Serensen, V. P. Kochaev, and R. M. Shneiderovich, Load-Carrying Capacity and Strength Calculations of Machine Components [in Russian], Mashinostroenie, Moscow (1975).Google Scholar
  3. 3.
    N. V. Novikov, D. V. Devin, and V. Ch. Levitas, “Analysis of the stressed state of ductile interlayers between rigid grains,” Sverkhtverd. Mater., No. 2, 16–23 (1980).Google Scholar
  4. 4.
    N. N. Sereda, M. S. Koval'chenko, and O. V. Roman, “Correlation between the structure and behavior of titanium carbide hard metals during cyclic loading,” Transactions of the Seventh International Conference on Powder Metallurgy, Dresden, Vol. 3 (1981), pp. 45–50.Google Scholar
  5. 5.
    N. N. Sereda, M. S. Koval'chenko, V. A. Tsyban', and L. N. Beloborodov, “Physicomechanical and fatigue properties of titanium carbide base hard metals,” Poroshk. Metall., No. 3, 74–78 (1985).Google Scholar
  6. 6.
    Y. Fujiwara, H. Ueda, H. Masatomi, and H. Suzuki, “Cyclic strength of WC-12% Co hard metals produced by hot isostatic pressing,” J. Jpn. Soc. Powder Metall.,27, No. 6, 181–184 (1980).Google Scholar

Copyright information

© Plenum Publishing Corporation 1986

Authors and Affiliations

  • N. N. Sereda
    • 1
  • A. K. Gerikhanov
    • 1
  • M. S. Koval'chenko
    • 1
  • V. A. Tsyban'
    • 1
  • L. G. Pedanov
    • 1
  1. 1.Institute of Materials ScienceAcademy of Sciences of the Ukrainian SSRUkraine

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