Results 251 to 260 of about 30,474 (304)
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Blanket neutronics of Li/vanadium-alloy and Flibe/vanadium-alloy systems for FFHR
Fusion Engineering and Design, 2006Abstract Neutronics calculations were carried out to characterize self-cooled Li and Flibe blankets with vanadium alloy (V–4Cr–4Ti) structure, as advanced options for the Force Free Helical Reactor (FFHR-2). In the present paper, the parameter dependence of Tritium Breeding Ratio (TBR) and neutron shield performance was examined for a Li blanket ...
T. Muroga, T. Tanaka, A. Sagara
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Gas-metal reactions in vanadium and vanadium-base alloys
International Metals Reviews, 1980AbstractThe interaction of unalloyed vanadium with carbon, oxygen, nitrogen, and hydrogen and the effects of these elements on the mechanical behaviour of vanadium and vanadium alloys are reviewed. Hydrogen, nitrogen, and oxygen exhibit high solid solubility (≥2 at.-% at 500°C) while carbon solubility in vanadium is less than O.
R. C. Svedberg, R. W. Buckman
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Mechanical properties of vanadium-alloyed copper and nickel-vanadium alloys at elevated temperatures
Metal Science and Heat Treatment of Metals, 19611. Vanadium is useful deoxidizing and alloying addition to copper and nickel; small additions (up to 0.4% in copper and up to 1% in nickel) improve the mechanical properties of the alloys while reducing the effect of temperature on static tensile strength. 2. Addition of vanadium to copper eleminates the brittle range at 500°C.
Ye. M. Savitskiy, U. A. Duysemalieyev
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Vanadium self-diffusion in pure vanadium and in dilute vanadium-iron and vanadium-tantalum alloys
Philosophical Magazine Part B, 1983Abstract Measurements of vanadium self-diffusion have been made over the temperature range 1050–1874°C. The solute enhancement factor b for vanadium self-diffusion has also been measured in dilute vanadium-iron and vanadium-tantalum alloys. These results, together with the authors' previously published results on iron impurity diffusion in vanadium ...
D. Ablitzer +2 more
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1961
Abstract : Alloys based on V-5w/oTi-20w/oCb and V-60w/oCb were found to exhibit excellent fabricability and weldability with good retention of strength to at least 2200 deg F. Ultimate tensile strength values of materials at the 60w/o columbuim level measured under He were above 60,000 psi at 2000 deg F and up to 44,400 psi at 2200 deg F; the strongest
F. C. Holtz, B. R. Rajala
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Abstract : Alloys based on V-5w/oTi-20w/oCb and V-60w/oCb were found to exhibit excellent fabricability and weldability with good retention of strength to at least 2200 deg F. Ultimate tensile strength values of materials at the 60w/o columbuim level measured under He were above 60,000 psi at 2000 deg F and up to 44,400 psi at 2200 deg F; the strongest
F. C. Holtz, B. R. Rajala
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JOM, 1963
The potential of V alloys for applications above 2000 deg F is described. Mechanical properties are tabulated and reviewed, with major emphasis on the V-Nb alloys. Evaluations of fabricability are considered, and investigations of several oxidation-protection systems, particularly packsiliconizing treatment are detailed. (auth) nium dioxide. (auth)
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The potential of V alloys for applications above 2000 deg F is described. Mechanical properties are tabulated and reviewed, with major emphasis on the V-Nb alloys. Evaluations of fabricability are considered, and investigations of several oxidation-protection systems, particularly packsiliconizing treatment are detailed. (auth) nium dioxide. (auth)
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1991
The phase diagram shown in Fig. 100 is due to [1]. A diagram covering the whole composition range was produced at about the same time by [2]. Although there is good agreement in some respects, there are also considerable differences, especially with regard to melting points, and in view of the authors’ own comments on the small number of samples ...
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The phase diagram shown in Fig. 100 is due to [1]. A diagram covering the whole composition range was produced at about the same time by [2]. Although there is good agreement in some respects, there are also considerable differences, especially with regard to melting points, and in view of the authors’ own comments on the small number of samples ...
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Vanadium-Zirconium Alloy System
JOM, 1955The equilibria in the V-Zr alloy system were investigated by solidus temperature determinations, thermal analysis, dilatometry, electrical resistance measurements, microscopic examination, and X-ray diffraction analysis. There is a eutectic reaction at 1230°C between a compound, V2Zr, and a solid solution containing 10 pet V in β zirconium.
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Microstructure of Vanadium-Oxygen Alloys
Proceedings, annual meeting, Electron Microscopy Society of America, 1981The present study is a continuation of our investigation on in situ oxidation of vanadium and vanadium-titanium alloys. Vanadium is a reactive metal and forms a large number of oxides during high-temperature exposure to oxygen. The microstructure of the oxides formed during the first stages of oxidation and the transformations between oxide phases are ...
K. Lawless, E. A. Kenik, J. Bentley
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Interdiffusion in niobium-vanadium alloys
Journal of the Less Common Metals, 1965Abstract A determination of the variation of interdiffusion coefficient with composition for Nb-V alloys has been made for diffusion temperatures of 1404°, 1505°, 1630° and 1750°C. Three types of doubly infinite couples were employed: Nb/V, Nb/alloy and V/alloy, where the alloy was 50 at.% Nb.
R.C. Geiss, C.S. Hartley, J.E. Steedly
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