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PILOT EVALUATION OF VANADIUM ALLOYS
IIT RESEARCH INST CHICAGO ILL
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High-vanadium and V-60 wt- Nb base alloys containing refractory metal and interstitial additions were fabricated by hot and cold rolling techniques. All compositions were rendered to 0.050-in. sheet except those containing Mo or more than 0.13 wt- combined O and N. Tensile results at 2400 F showed that V-20 wt- Nb base materials had ultimate tensile strength values in the 8,000 to 10,000 psi range, whereas V-60 wt- Nb base alloys had strengths of 12,000 to 19,000 psi. Additions of 0.05 wt- O or 0.03 wt- each of O and N produced large strength increases in the V-60 wt- Nb base. A 100-lb ingot of V-1Ti-60 Nb was melted by Oregon Metallurgical Corporation and shipped to E. I. du Pont for extrusion and subsequent fabrication into bar, plate, and sheet for more detailed property evaluations. Author
APPROVED FOR PUBLIC RELEASE