Generation of Long Time Creep Data of Refractory Alloys at Elevated Temperatures (Twelfth Quarterly Report, March 26, 1966--June 26, 1966)
- TRW Equipment Laboratories, Cleveland, OH (United States)
Space electric power systems depend upon the use of refractory metals in a variety of component areas. A critical property parameter in the design of these systems is the long-time creep strength at very low pressures and elevated temperatures. Since oxygen contamination of refractory metal alloys can occur under conditions of 1 x 10-6 Torr, vacuums better than 1 x 10 Torr must be used to obtain meaningful creep measurements which can be employed in the design of space components. The initial work of this program was to generate 1000 hour creep data on selected refractory alloys which have potential use in advanced power systems. These alloys are in the form of rolled sheet and forged plate with the former being considered as representative of material for cladding and tubing applications and the latter for turbine components. Following the initial evaluation, primary emphasis has been placed on providing long-time creep design data for the tantalum-base alloy T-III and the molybdenum-base alloys TZC and TZM. This report presents creep data for vapor-deposited tungsten, TZC, TZM, columbium-modified TZM and T-III.
- Research Organization:
- TRW Equipment Laboratories, Cleveland, OH (United States)
- Sponsoring Organization:
- National Aeronautics and Space Administration (NASA)
- DOE Contract Number:
- NAS3-2545
- NSA Number:
- NSA-21-003488
- OSTI ID:
- 4483479
- Report Number(s):
- NAS-CR-72044
- Resource Relation:
- Other Information: UNCL. Orig. Receipt Date: 31-DEC-67
- Country of Publication:
- United States
- Language:
- English
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