Creep Rupture Behavior of Selected Turbine Materials in Air, Ultra-High Purity Helium, and Simulated Closed Cycle Brayton Helium Working Fluids

[+] Author and Article Information
R. L. Ammon, L. R. Eisenstatt, G. O. Yatsko

Westinghouse Electric Corporation, Advanced Energy Systems Division, Pittsburgh, Pa.

J. Eng. Power 103(2), 331-337 (Apr 01, 1981) (7 pages) doi:10.1115/1.3230725 History: Received January 09, 1980; Online November 09, 2009


Five turbine materials, IN100, 713LC, MAR-M-509, MA-754 and TZM were selected as candidate materials for use in a Compact Closed Cycle Brayton System (CCCBS) study in which helium served as the working fluid. The suitability of the alloys to serve in the CCCBS environment at 927 C (1700 F) was evaluated on the basis of creep-rupture tests conducted in air, ultra-high purity helium (>99.9999 percent), and a controlled impurity helium environment. Baseline reference creep rupture properties for times up to 10,000 hr were established in a static ultra-high purity helium environment.

Copyright © 1981 by ASME
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