TANTALUM AND TANTALUM ALLOYS

Technical Report · Mon Jul 25 04:00:00 EDT 1960

OSTI ID:4153615

Schmidt, F F

A descriptive literature survey was made covering physical properties, process metallurgy, binary and ternary alloy systems, chemical properties, and metallurgical properties of Ta and Ta alloys. The properties of Ta are well reported; however, investigations concerned with the effects of interstitial and substitutional alloying elements on the properties of Ta are limited. Tantalum has only moderate strength at room temperature; however, the elevated-temperature strength decreases slowly in comparison with that of many other metals. The low ductile-to-brittle behavior, excellent fabricability, high melting point, and high solubility for interstitial and substitutional elements make Ta an attractive candidate for use in high-temperature high-strength alloys. Refractory metals that exhibit brittle behavior at room temperature, such as Mo and W, can be alloyed with Ta to form Ta-base alloys with a combination of high- temperature strength and low-temperature ductility not found in many metallic materials designed for ultra-high-temperature service. 287 references. (auth)

• Research Organization: Battelle Memorial Inst. Defense Metals Information Center, Columbus, Ohio
• NSA Number: NSA-14-024547
• OSTI ID: 4153615
• Report Number(s): DMIC-133; PB-151091
• Country of Publication: United States
• Language: English

Related Subjects

ALLOYS
BIBLIOGRAPHY
BRITTLENESS
CHEMICAL REACTIONS
DUCTILITY
FABRICATION
HEAT RESISTING METALS
HIGH TEMPERATURE
MECHANICAL PROPERTIES
MELTING POINTS
METALLURGY
METALS, CERAMICS, AND OTHER MATERIALS
TANTALUM
TANTALUM ALLOYS
TENSILE PROPERTIES