Metal Science and Heat Treatment

, Volume 41, Issue 1, pp 32–35 | Cite as

Structure and properties of high-temperature nickel alloys with hafnium

  • N. A. Lysenko
  • V. V. Kudin
  • V. G. Klochikhin
  • É. I. Tsivirko
High-Temperature Alloys
  • 33 Downloads

Abstract

The present work is devoted to the effect of modification of high-temperature alloys ZhS6U-VI and ZhS3DK-VI with hafnium on their properties and structure. Alloys ZhS6U-VI and ZhS3DK-VI were molten in a vacuum induction furnace and modified with hafnium in an amount of 0–1.5% (as calculated) using a nickel-hafnium alloying composition. It is shown that hafnium alloying diminishes the sizes and amount of the brittle component in a fracture and the distance between the second-order dendrite axes and changes the morphology of the carbides. With growth of the hafnium content the mechanical properties of both alloys and the high-temperature strength of alloy ZhS3DK-VI at room temperature increase.

Keywords

Carbide Hafnium Glyph Eutectic Carbide Vacuum Induction Furnace 

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References

  1. 1.
    J. D. Verin, “Microstructure and properties of high-temperature alloys,” in:High-Temperature Alloys [Russian translation], Metallurgiya, Moscow (1976), pp. 217–241.Google Scholar
  2. 2.
    R. F. Decker and Ch. T. Sims, “Metal science of nickel-base alloys,” in:High-Temperature Alloys [Russian translation], Metallurgiya, Moscow (1976), pp. 39–82.Google Scholar

Copyright information

© Kluwer Academic/Plenum Publishers 1999

Authors and Affiliations

  • N. A. Lysenko
    • 1
    • 2
  • V. V. Kudin
    • 1
    • 2
  • V. G. Klochikhin
    • 1
    • 2
  • É. I. Tsivirko
    • 1
    • 2
  1. 1.Motor-Sich Joint-Stock CompanyUkraine
  2. 2.Zaporozhe State Engineering UniversityZaporozheUkraine

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