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Plastic deformation and fracture of niobium reinforced with tungsten fibers

  • Test Methods and Properties of Materials
  • Published:
Soviet Powder Metallurgy and Metal Ceramics Aims and scope

Conclusions

  1. 1.

    An investigation into the temperature dependence of the strength of a niobium/tungsten-wire composite, which constitutes a typical ductile-matrix/ductile-fiber system, has shown that at high temperature (> 1000°C) there is a discrepancy between the experimentally determined strength of the composite and values of strength calculated with the additive equation.

  2. 2.

    The extra strength of the composite is due to a “plasticizing” influence exerted by the niobium matrix on the tungsten fibers, as a result of which the latter undergo additional strain strengthening.

  3. 3.

    Fractographic examinations revealed that the rupture of a Nb/W composite is preceded by substantial local plastic deformation of its components.

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Authors and Affiliations

  1. Institute of Materials Science, Academy of Sciences of the Ukrainian SSR, USSR

    V. I. Trefilov, D. M. Karpinos, L. I. Tuchinskii, V. F. Moiseev, M. L. Gorb, L. R. Vishnyakov, É. P. Pechkovskii, A. D. Vastl'ev & V. A. Kokhanyi

  2. E. O. Paton Institute of Electrowelding, Academy of Sciences of the Ukrainian SSR, USSR

    V. I. Trefilov, D. M. Karpinos, L. I. Tuchinskii, V. F. Moiseev, M. L. Gorb, L. R. Vishnyakov, É. P. Pechkovskii, A. D. Vastl'ev & V. A. Kokhanyi

Authors
  1. V. I. Trefilov
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  2. D. M. Karpinos
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  3. L. I. Tuchinskii
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  4. V. F. Moiseev
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  5. M. L. Gorb
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  6. L. R. Vishnyakov
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  7. É. P. Pechkovskii
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  8. A. D. Vastl'ev
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  9. V. A. Kokhanyi
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Additional information

Translated from Poroshkovaya Metallurgiya, No. 5(161), pp. 63–67, May, 1976.

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Trefilov, V.I., Karpinos, D.M., Tuchinskii, L.I. et al. Plastic deformation and fracture of niobium reinforced with tungsten fibers. Powder Metall Met Ceram 15, 381–384 (1976). https://doi.org/10.1007/BF00806477

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  • DOI: https://doi.org/10.1007/BF00806477

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