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Nickel Base Alloy GTD-222, a New Gas Turbine Nozzle Alloy PUBLIC ACCESS

[+] Author Affiliations
D. W. Seaver, A. M. Beltran

General Electric Company, Schenectady, NY

Paper No. 91-GT-073, pp. V005T12A006; 7 pages
doi:10.1115/91-GT-073
From:
  • ASME 1991 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General
  • Orlando, Florida, USA, June 3–6, 1991
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7902-3
  • Copyright © 1991 by ASME

abstract

This paper summarizes the key properties of GTD-222 (1), a new cast nickel base nozzle alloy developed by GE for use in land based gas turbines. GTD-222 is being introduced as a replacement for FSX-414 in second and third stage nozzles of certain machines. Presented in this paper are comparisons of the tensile, creep-rupture, and fatigue properties of GTD-222 versus FSX-414. In addition, the results of a long term thermal stability study, high temperature oxidation and hot corrosion evaluation as well as weldability results will be discussed.

Copyright © 1991 by ASME
This article is only available in the PDF format.

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