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- W789347247 abstract "Vanadium-niobium base alloys exhibiting an excellent combination of fabricability, weldability, and strength up to 2200 deg F were investigated. Alloying behavior was evaluated in neutral atmospheres by room-temperature, 2000, 2200, and 2400 deg F tensile tests and by 2000 deg F stress-rupture data. Titanium in amounts of 5 wt.% proved to be a bettsr solid solution strengthener of the V-Nb base than either hafnium or zirconium. The strongest alloy investigated was V-60 wt.% Nb with an ultimate tensile strength of approx 63,000 psi at 2000 deg F; V-5 wt.% Ti-20 wt.% Nb exhibits a tensile strength of 50,000 psi at this temperature. The data compare favorably with the strength of the strongest sheet materials at 2000 deg F. With no post-welding heat treatment, welded sheet of V-5 wt.% Ti-20 wt.% Nb passed a 180 deg , 3t bend test. The recrystallization temperature of vanadium was raised 700 deg F with carbon additions, and 800 deg F with boron additions. An alloy V-5 wt.% Ti-20 wt.% Nb0.25 wt.% C had a 100-hour 2000 deg F stress-rupture strength of 6000 psi. (auth)" @default.
- W789347247 created "2016-06-24" @default.
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- W789347247 date "1960-12-27" @default.
- W789347247 modified "2023-09-26" @default.
- W789347247 title "IMPROVED VANADIUM-BASE ALLOYS. Final Report, December 1, 1959-November 30, 1960" @default.
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