IMPROVED VANADIUM-BASE ALLOYS. Summary Report for December 1, 1958 to December 1, 1959
Promising V-Ti-(Cb, Mo, Ta, W) sheet alloys were investigated, since vanadium-base materials exhibit an excellent combination of fabricability, strength at elevated temperatures, and weldability. Alloying behavior was determined by the following property evaluations: 1200 tained F creep, 2000 tained F short-time stress-rupture, and room temperature, 1200, 1800, and 2000 tained F tensile data. This program was not concerned with oxidation protection; tests were performed in inert atmospheres because of excessive oxidation in air above 1245 tained F by formation of liquid V/ sub 2/O/sub 5/. One of the most promising alloys, V--5 wt.% Ti--20 wt.% Nb, exhibits tensile strengths of approximately 70,000 and 50,000 psi at 1800 and 2000 tained F, respectively, and a 15-min rupture-strength of 33,000 psi at 2000 tained . On a density-corrected basis, these datu compare favorably with the properties of the best available sheet materials for 2000 tained F. An aged V--5 wt.% Ti-20 wt.% Nb--I wt.% Si alloy offered promise at 1200 tained F; the stress to produce 0.1% plastic deformation in 100 hours was 50,000 psi. (auth) Data on the metallurgical, mechanical, and physical properties of Inconel which are pertinent to nuclear plant equipment design are compiled. (C.J.G.)
- Research Organization:
- Illinois Inst. of Tech., Chicago. Armour Research Foundation
- NSA Number:
- NSA-14-019413
- OSTI ID:
- 4183645
- Report Number(s):
- ARF-2165-6
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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IMPROVED VANADIUM-BASE ALLOYS. Bimonthly Report No. 4 for June 1-July 31, 1959
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Related Subjects
DENSITY
DUCTILITY
FABRICATION
FAILURES
FUSED SALTS
HEAT TREATMENTS
HIGH TEMPERATURE
INERT GASES
MATERIALS TESTING
METALS, CERAMICS, AND OTHER MATERIALS
MOLYBDENUM ALLOYS
NIOBIUM ALLOYS
OXIDATION
PRESSURE
SHEETS
SILICIDES
STABILITY
STRESSES
TANTALUM ALLOYS
TEMPERATURE
TENSILE PROPERTIES
TITANIUM ALLOYS
TUNGSTEN ALLOYS
VANADIUM ALLOYS
VANADIUM OXIDES
WELDING