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Soviet Powder Metallurgy and Metal Ceramics

, Volume 15, Issue 7, pp 569–572 | Cite as

Effect of structure on the high-temperature ductility of sintered nickel

  • Yu. M. Litvinenko
  • V. V. Skorokhod
  • A. D. Kostenko
Test Methods and Properties of Materials
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Conclusions

  1. 1.

    A temperature of 1250°C and a deformation rate of 6. 10−5 sec−1 constitute conditions under which superductility manifests itself in sintered nickel containing dispersed ZrO2 inclusions. The factor m characterizing the sensitivity of yield stress to deformation rate then assumes the value 0.34.

     
  2. 2.

    Thermomechanical treatment of sintered carbonyl nickel and extruded dispersion-hardened nickel leads to loss of the superplastic deformability exhibited under certain conditions by the same materials in the undeformed sintered condition.

     

Keywords

Nickel Carbonyl Ductility Deformation Rate Thermomechanical Treatment 
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.
    Yu. M. Litvinenko, V. V. Skorokhod, and Yu. F. Yurchenko, Poroshkovaya Met., No. 9 (1974).Google Scholar
  2. 2.
    Yu. M. Litvinenko and V. V. Skorokhod, in: Metal Physics, A Republican Interdisciplinary Symposium [in Russian], No. 62, Naukova Dumka, Kiev (1975), p. 37.Google Scholar
  3. 3.
    K. I. Portnoi and B. N. Babich, Dispersion-Hardened Metals [in Russian], Metallurgiya, Moscow (1974).Google Scholar
  4. 4.
    Ultrafine Grain in Metals [Russian translation], Metallurgiya, Moscow (1973).Google Scholar
  5. 5.
    D. Avery and N. Backofen, Trans. Am. Soc. Metals,58, 551 (1965).Google Scholar
  6. 6.
    O. A. Kaibyshev, Yu. V. Gusev, et al., Metal, i Term. Obrabotka Metal., No. 1, 45 (1975).Google Scholar
  7. 7.
    E. W. Hart, in: Ultrafine Grain in Metals [Russian translation], Metallurgiya, Moscow (1973), p. 232.Google Scholar
  8. 8.
    V. S. Rakovskii, A. F. Silaev, et al., Powder Metallurgy of Alloys and Refractory Metals [in Russian], Metallurgiya, Moscow (1974), p. 169.Google Scholar
  9. 9.
    L. E. Murr, H. R. Vydyanath, and Y. W. Foltz, Metal Trans.,1, No. 11, 3215 (1970).Google Scholar
  10. 10.
    R. W. Fraser, B. Meddings, et al., in: Modern Developments in Powder Metallurgy, H. H. Hausner (editor), Plenum Press, New York (1966), p. 87.Google Scholar

Copyright information

© Plenum Publishing Corporation 1976

Authors and Affiliations

  • Yu. M. Litvinenko
    • 1
  • V. V. Skorokhod
    • 1
  • A. D. Kostenko
    • 1
  1. 1.Institute of Materials ScienceAcademy of Sciences of the Ukrainian SSRUkraine

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