Generation of Long-Time Creep Data on Refractory Alloys at Elevated Temperatures (Eleventh Quarterly Report, December 26, 1965-March 26, 1966)

Technical Report · Thu Apr 14 23:00:00 EST 1966

DOI:https://doi.org/10.2172/4534562· OSTI ID:4534562

Sawyer, J. C. ^[1]; Steigerwald, E. A. ^[1]

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1. 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. Since oxygen contamination of refractory metal alloys can occur under conditions of 1 x 10^-6 Torr, vacuums better than 1 x 10^-8 Torr must be used to obtain creep measurements which are employed in the design of space components. The purpose of this program is to generate long-time creep data on selected refractory alloys which have potential use in advanced power systems. Emphasis has been placed on testing sheet alloys which can be employed for cladding or tubing applications and on forgeable, high-strength turbine alloys. This report presents the creep data obtained during the eleventh quarter on arc-cast and vapor-deposited tungsten, the molybdenum base alloys TZC, TZM, and columbium modified TZM, and the tantalum base alloys T-III and T-222.

• Research Organization: TRW Equipment Laboratories, Cleveland, OH (United States)
• Sponsoring Organization: National Aeronautics and Space Administration (NASA)
• NSA Number: NSA-20-029705
• OSTI ID: 4534562
• Report Number(s): NAS-CR--54973
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CARBIDES
CREEP
HAFNIUM ALLOYS
HIGH TEMPERATURE
MATERIALS TESTING
MEASURED VALUES
METALS, CERAMICS, AND OTHER MATERIALS
MOLYBDENUM ALLOY-TZM
MOLYBDENUM ALLOYS
NIOBIUM ALLOYS
Properties and Structure
TANTALUM ALLOY-T111
TANTALUM ALLOY-T222
TANTALUM ALLOYS
TITANIUM ALLOYS
TUNGSTEN
TUNGSTEN ALLOYS
ZIRCONIUM ALLOYS