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

[+] Author and Article Information
D. W. Seaver, A. M. Beltran

General Electric Company, Schenectady, NY 12345

J. Eng. Gas Turbines Power 115(1), 155-159 (Jan 01, 1993) (5 pages) doi:10.1115/1.2906670 History: Received February 12, 1991; Online April 24, 2008


This paper summarizes the key properties of GTD-222 (Wood and Haydon, 1989), 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 © 1993 by The American Society of Mechanical Engineers
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