Metal Science and Heat Treatment of Metals

, Volume 2, Issue 9, pp 483–486 | Cite as

Properties of tungsten-rhenium alloys

  • E. M. Savitskii
  • M. A. Tylkina
  • S. I. Ipatova
  • E. I. Pavlova
Non-Ferrous Metals and Alloys

Conclusions

  1. 1.

    The W-Re equilibrium diagram has been constructed [Figure 6].

     
  2. 2.

    Addition of Re to tungsten raised the temperature of incipient recrystallization of tungsten VCh wire by 200–400°C, depending on the rhenium content.

     
  3. 3.

    Rhenium improved the strength and ductility of tungsten in the 20–3000°C range.

     
  4. 4.

    W-Re wire developed a high strength and ductility after annealing at 1400–1950°C. An alloy with 20% Re annealed at 1400–1500°C had a strength of 180–190 kg/sq. mm and 18–20% elongation.

     
  5. 5.

    W-Re alloys were harder than plain W in the 20–1000°C range. At 800°C, the alloys with 10, 25 and 75% Re had a hardness of about 200 kg/sq. mm while an alloy of W with 2% Re had one of about 110 kg/sq. mm.

     
  6. 6.

    Alloying of tungsten with rhenium increased several-fold its resistivity at various temperatures.

     
  7. 7.

    W-Re alloys can be recommended for elements of electric vacuum devices such as cathodes, heaters, radio tube grids, etc. They are also suitable for thermocouples and electrical contacts.

     

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Copyright information

© Consultants Bureau 1960

Authors and Affiliations

  • E. M. Savitskii
    • 1
  • M. A. Tylkina
    • 1
  • S. I. Ipatova
    • 1
  • E. I. Pavlova
    • 1
  1. 1.Institute for MetalurgyAc. Sc. U. S. S. R. & Moscow Lamp WorksMoscowUSSR

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