THE INFLUENCE OF OXYGEN ON THE YIELD STRENGTH OF TWO ZONE-MELTED NIOBIUM ALLOYS

Journal Article · Fri Feb 01 04:00:00 EST 1963 · J. Inst. Metals

OSTI ID:4709649

Rawson, J D.W.; Argent, B B

Two binary alloys of Nb containing 4.7 at.% Mo and 5.3 at.% Ta were prepared by argon arc melting the raw materials using a non-consumable niobium electrode. An anodizing technique was used to produce a controlled increase in the oxygen content of the recrystallized alloys. Specimens were strained at a strain rate of 9.2 x 10/sup -5//sec at room temperature and 8.3 x 10/sup -5//sec at -196 nif- C. Well-defined yield points were produced in specimens from each alloy in tests at room temperature. In tests at -196 nif- C yield points of the type produced at room temperature were found in only two cases. The effect of an increase in oxygen content from 0.01 to 0.1 wt% was to produce an increase in yield strength of approximately 25 x 10/sup 3/ lb/in/sup 2/ . The increase in strength resulting from a decrease in temperature was greater in the case of the two alloys than for the unalloyed material. (M.C.G.)

• Research Organization: Univ. of Sheffield, Eng.
• NSA Number: NSA-17-018811
• OSTI ID: 4709649
• Journal Information: J. Inst. Metals, Journal Name: J. Inst. Metals Vol. Vol: 91
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANODES
ARGON
DEFORMATION
ELECTRIC ARCS
ELECTRODES
LOW TEMPERATURE
MATERIALS TESTING
MELTING
METALS, CERAMICS, AND OTHER MATERIALS
MOLYBDENUM ALLOYS
NIOBIUM
NIOBIUM ALLOYS
OXYGEN
PREPARATION
QUANTITY RATIO
RECRYSTALLIZATION
TANTALUM ALLOYS
TEMPERATURE
TENSILE PROPERTIES
ZONES