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Materials Science

, Volume 55, Issue 2, pp 181–186 | Cite as

Influence of Rhenium on the Heat Resistance of the Alloy of Cobalt with Niobium Carbide

  • H. P. DmytrievaEmail author
  • Т. S. Cherepova
  • Т. А. Kosorukova
  • Т. V. Pryadko
Article
  • 2 Downloads

By the methods of physicochemical analysis, we study the influence of 1–9 wt.% of rhenium on the melting temperature, structure, and heat resistance of the industrial KhTN-62 cast alloy used for wear protection of the contact surfaces of working blades of gas-turbine engines. It was established that, for the optimal rhenium content varying from 3 to 9 wt.%, the oxidation resistance of the alloy at 1100°C becomes twice higher. In this case, the melting temperature of the alloy remains not lower than 1300°C, its structure does not change, and therefore, it is quite promising for application under severe operating conditions of gas-turbine engines.

Keywords

cobalt niobium carbide eutectic industrial KhTN-62 alloy rhenium heat resistance melting temperature structure 

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • H. P. Dmytrieva
    • 1
    Email author
  • Т. S. Cherepova
    • 1
  • Т. А. Kosorukova
    • 1
  • Т. V. Pryadko
    • 1
  1. 1.Kurdyumov Institute of Metal PhysicsUkrainian National Academy of SciencesKyivUkraine

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