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Journal of Materials Science

, Volume 30, Issue 5, pp 1379–1385 | Cite as

Investigation of equilibrium and phase stability in the liquid/solid state in nickel-based wrought superalloys

  • G. I. Rosen
  • S. F. Dirnfeld
  • M. Bamberger
  • B. Prinz
Papers

Abstract

Isothermal holding experiments between the liquidus temperatures, TL, and the solidus temperatures, TS, were carried out on nickel-based wrought superalloys. It was found that during solidification the elements aluminium, cobalt and tungsten tend to dissolve in the γ matrix whereas titanium, tantalum and molybdenum tend to segregate into the liquid. Molybdenum and titanium cause the formation of brittle σ and η phases, respectively, after prolonged holding at elevated temperatures, in accordance with the results of New-PHACOMP (new phase computation).

Keywords

Polymer Aluminium Titanium Cobalt Brittle 
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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Copyright information

© Chapman & Hall 1995

Authors and Affiliations

  • G. I. Rosen
    • 1
  • S. F. Dirnfeld
    • 2
  • M. Bamberger
    • 2
  • B. Prinz
    • 3
  1. 1.Materials DepartmentNational LaboratoryRoskildeDenmark
  2. 2.Department of Materials EngineeringTechnion, Israel Institute of TechnologyTechnion City, HaifaIsrael
  3. 3.Metallgesellschaft AGMetall-LaboratoriumFrankfurt am MainGermany

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