... Today, most bearings for automotive transmission operate in an environment of severe debris contaminated lubrication. Thus, to develop the bearings that have a long life under the lubrication environment, micro-alloyed forging steel with a vanadium element based on medium-carbon steel...

... Vanadium alloys, especially V-Cr-Ti alloys, are candidates for first wall and blanket structures of fusion reactors. However, a major vulnerability of this class of alloys is the affinity for oxygen and other interstitial solutes. Oxygen, nitrogen, carbon, and hydrogen can severely harden...

... Copper ion irradiation at room temperature and at 573 K up to 1 dpa was conducted on vanadium doped with controlled levels of nitrogen ranging from 12 to 770 weight ppm (wppm). Micro-indentation test was performed to make a quantitative estimation of hardening of the irradiated surface layer...

... behavior. the binary additions included molybdenum, niobium, or vanadium at concentrations ranging from 0.1 to 2.5 weight percent. Process variables included cooling rate from the beta phase, aging temperature from 500 to 700°C, and aging times up to 1000 h. The corrosion behavior of these alloys...

... for these variables. Such reliable and flexible failure assessment methods are critical to the design and safe operation of defect tolerant vanadium structures. vanadium cleavage fracture model G. R. Odette 1, E. Donahue I , G. E. Lucas 1, and J. W. Sheckherd 1 THE EFFECTS OF CONSTRAINT, LOADING RATE...

..., at least up to 275°C. It is shown that this embrittlement is not due to pickup of O or other interstitial solutes during the irradiation. vanadium strength toughness impact ductile-to-brittle transition embrittlement D. J. Alexander, 1L. L. Snead, 1S. J. Zinlde, 1A. N. Gubbi) A. F. Rowcliffe...

... Studies were undertaken to determine the distribution, elimination and storage of titanium and vanadium in organs and in cells. Animals (hamsters) received injections of salts of titanium and vanadium and the distribution in blood, urine, and organs was determined. At the highest doses used (600...

... in the past for the interstitials carbon, nitrogen, and oxygen. The existence of a hydrogen Snoek peak in bcc metals has been a matter of some controversy, however. We have studied relaxation peaks in vanadium, niobium, and vanadium-niobium (V-Nb) alloys recently. The alloys have complete mutual solubility...

... Trace metals such as vanadium, nickel, and iron in fluid catalytic cracking feedstocks deposit on the catalyst and adversely affect catalyst activity and product yields. Vanadium compounds can also cause damage to furnace linings and corrosion of boiler tubes or gas turbine blades. A rapid...

... A boron doping technique was employed to determine the microstructural response to differences in the rate of helium generation in vanadium under fission and fusion irradiation environments. Helium is enriched in the regions around boride and somewhat in the matrix due to (n,α) reactions, when...

... Joining with ceramic materials is one of the important subjects in the application of vanadium for the fusion environment. In order to develop and understand the solid-state bonding of vanadium with oxide ceramics, conditions of diffusion bonding between vanadium and alumina were examined...

... medium was employed. Growth of L. gibba G-3 was found to become enhanced by additions of selenium, (4.2 μgL -1 , Na 2 SeO 4 = 100 μgL -1 ), tin (456.6 μgL -1 , SnCl 4 = 10 mgL -1 ), cobalt [20.3 μgL -1 , Co(No 3 ) 2 6 H 2 O = 1 mgL -1 ], and vanadium (25.6 μgL -1 , VOSO 4 2 H 2 O = 1 mgL -1...

... spectroscopy (EELS) analyses. The RIS of solutes and microstructural evolution in the irradiated alloys were correlated with the solute diffusivity and the relative chemical affinity of the substitutional solutes for oxygen. ion irradiation vanadium vanadium alloys swelling compositional dependence...

... or carbonitrides—contained substantial cavities. vanadium helium ductility swelling microstructure fracture tensile properties embrittlement irradiation Martin L. Grossbeck} and James A. Horak} Tensile and Fracture Properties of EBR-IIIrradiated V-15Cr-5Ti Containing Helium REFERENCE: Grossbeck, M...

...) for such elements as aluminum, arsenic, calcium, chromium, copper, iron, magnesium, phosphorus, manganese, lead, titanium, vanadium, and zinc, at concentrations from trace to major. Numerous examples of methods developed employing the dissolution technique are cited, with data on accuracy and precision...

... catalytic cracking visbreaker fuel quality marine fuel suppliers bunkers British Standards Institution aluminum viscosity vanadium William P. Cullen' and David Royle^ A Review of the Quality of Residual Fuels Supplied to Motorships in the United States REFERENCE: Cullen, W. P. and Royle, D...

... Helium bubble growth in vanadium has been investigated during postimplantation annealing at 950°C. The gas was introduced into 100-μm-thick specimens at room temperature by sequential ion implantation at 220, 140, 120, and 50 keV. This treatment provided a helium concentration of 5 × 10 26...

... of aluminum on surface quality. Elements used for this purpose are columbium and vanadium, added in the form of ferroalloys. This paper discusses the reasons for the development of these practices, the effect of these additions on the finished product, and asks the question, “Why fine grain...

... The effect of neutron irradiation on vanadium containing 50 to 800 weight ppm oxygen was studied using electrical resistivity, internal friction, and mechanical property measurements. The resistivity and internal friction specimens were irradiated to 3 × 10 18 neutrons/cm 2 ( E > 1 MeV...

... In 1965 two Westinghouse W171 gas turbines at the Miraflores station of the Panama Canal Co. were overhauled and put into service burning a locally available “Low Vanadium Special Fuel.” The purchase specification was: sodium (less than 10 ppm), vanadium (less than 4 ppm), calcium (less than 10...