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Soviet Powder Metallurgy and Metal Ceramics

, Volume 19, Issue 7, pp 474–476 | Cite as

Effect of conditions of preparation of nickel fibers extruded from powders on their strength properties. Part II

  • I. M. Fedorchenko
  • A. G. Kostornov
  • O. V. Kirichenko
  • A. V. Perepelkin
Powder Metallurgical Materials, Parts, and Coatings
  • 11 Downloads

Conclusions

In the manufacture of extruded fibers the main process parameters determining their strength properties are sintering temperature and sintering time up to 1 h. Structural factors adversely affecting the strength of extruded nickel fibers are porosity, interfaces between blocks, and ash residue inclusions. Raising the sintering temperature from 1200 to 1280°C decreases the porosity and amount of ash residue inclusions and smoothens out the fiber surface profile. Under these conditions the strength of the fibers rises from 0.5–0.7 to 0.7–0.8 of the ultimate strength of the cast metal annealed at the same temperature.

Keywords

Porosity Nickel Structural Factor Ultimate Strength Strength Property 
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.
    I. M. Fedorchenko, A. G. Kostornov, O. V. Kirichenko, L. I. Chernyshev, and A. V. Perepelkin, “Some characteristic features of the production of extruded nickel fibers,” Poroshk. Metall., No. 2, 1–4 (1980).Google Scholar
  2. 2.
    S. A. Saltykov, Stereometric Metallography [in Russian], Metallurgiya, Moscow (1970).Google Scholar
  3. 3.
    R. A. Nilender (editor), Properties and Applications of Metals and Alloys for Electric Vacuum Devices [in Russian], Énergiya, Moscow (1973).Google Scholar
  4. 4.
    M. Yu. Bal'shin, Scientific Principles of Powder and Fiber Metallurgy [in Russian], Metallurgiya, Moscow (1972).Google Scholar

Copyright information

© Plenum Publishing Corporation 1980

Authors and Affiliations

  • I. M. Fedorchenko
    • 1
  • A. G. Kostornov
    • 1
  • O. V. Kirichenko
    • 1
  • A. V. Perepelkin
    • 1
  1. 1.Institute of Materials ScienceAcademy of Sciences of the Ukrainian SSRUkraine

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