COLUMBIUM ALLOYS TODAY

Journal Article · Wed Jun 01 04:00:00 EDT 1960 · Metal Progr.

OSTI ID:4183692

Jahnke, L P; Frank, R G; Redden, T K

Niobinm is attractive as a metal or alloy for use at high temperatures and in the fields of nuclear energy and apace travel because of its high melting point (4470DEF), good intrinsic dactility, reasonable chemical resistance, low thermal neutron capture cross section, and low density (7.9 g/cm/sup 3/). The current prices and delivery times of commercial Nb are a little lower, although still high. Progress made from 1955 to 1960 in the removal of C, O, aad N from Nb is shown. Problems commonly encountered in processing (casting) Nb alloys and teating are described; it is best to conduct high-temperature thats in vacuum. Some data are given and plotted (2000 deg F) for the effects of alloying elements (e.g., Zr, Ti, Mo, W, C, and O) on the oxidation resistance and strength of Nb. Commercially available Nb alloys are given together with laboratory and pilot alloys, and strength va. tsmperature and time plots are given for some of them. The future of Nb alloys is discussed. (D.L.C.)

• Research Organization: General Electric Co., Cincinnati
• NSA Number: NSA-14-016017
• OSTI ID: 4183692
• Journal Information: Metal Progr., Journal Name: Metal Progr. Vol. Vol: 77, No. 6
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CAPTURE
CARBON
CASTING
CHEMICAL REACTIONS
CROSS SECTIONS
DENSITY
DIAGRAMS
DUCTILITY
ECONOMICS
ENERGY
HIGH TEMPERATURE
LABORATORY EQUIPMENT
MATERIALS TESTING
MELTING POINTS
METALS, CERAMICS, AND OTHER MATERIALS
MOLYBDENUM ALLOYS
NIOBIUM
NIOBIUM ALLOYS
NIOBIUM CARBIDES
NIOBIUM OXIDES
NITROGEN
NUCLEAR REACTIONS
OXYGEN
REDUCTION
SPACE FLIGHT
STABILITY
TEMPERATURE
TENSILE PROPERTIES
THERMAL NEUTRONS
TITANIUM ALLOYS
TUNGSTEN ALLOYS
USES
VACUUM
ZIRCONIUM ALLOYS