PILOT EVALUATION OF VANADIUM ALLOYS. Bimonthly Report No. 7, September 18, 1962-November 17, 1962
V--Nb alloys prepared as 200-gram arc-melted ingots were evalunted for fabricability and tensile properties to 2400 deg F. Of the high-vanadium compositions, the strongest was V-5 wt % Ti-20 wt % Nb-10 wt % Ta which had strength values of 54,000 and 15,700 psi at 2000 deg and 2400 deg F, respectively. Tensile values of the stronger alloys at the 60 wt % Nb levels were near 65,000 psi at 2000 deg F and near 20,000 psi at 2400 deg F. Strengthening of the V-Nb alloy bases was accomplished by addition of refractory metals (Ta, W), the reactive metals (Ti, Zr, Hf), and the intersti tials (C, O, N). Material from the first 100-pound double consumableelectrode arc-melted ingot, a V-1 wt % Ti-60 wt % Nb composition, was distributed to the organizations participating in the data exchange program. A second 100-pound ingot, V-4 wt % Ti-20 wt % Nb-1 wt % Ti-0.075 wt % C, was triplemelted and forwarded to a commercial source for extrusion and subsequent fabrication to bar, plate, and sheet. (auth)
- Research Organization:
- Illinois Inst. of Tech., Chicago. Armour Research Foundation
- NSA Number:
- NSA-17-004924
- OSTI ID:
- 4752261
- Report Number(s):
- ARF-B231-7
- Country of Publication:
- United States
- Language:
- English
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