Abstract: An oxidation resistant nickel-chromium based alloy possessing good stress rupture characteristics at elevated temperature and, in addition to nickel and chromium, containing correlated percentages of aluminum, titanium, nitrogen, carbon, etc.

Abstract: A superconducting cable comprising an in-situ-formed type II superconductor, e.g. Nb.sub.3 Sn, in association with a stabilizing conductor both in heat transfer relationship with at least one passage adapted to carry liquified gaseous refrigerant. The conductor and said at least one passage are enclosed by a sheath comprising an alloy consisting essentially of about 49% nickel, about 4% chromium, about 3% niobium, about 1.4% titanium, about 1% aluminum, balance essentially iron.

Abstract: Oxide dispersion strengthened alloys containing 5-9% chromium, 5-7% aluminum, 5-9% tungsten, 1-3% molybdenum, 1-5% tantalum, 0-1.5% titanium, 0-10% cobalt, 1-4% rhenium, 0.1-2% yttrium, small amounts of boron and zirconium as required, balance essentially nickel display excellent lives to rupture under load at intermediate high temperatures of about 850.degree. C.

Abstract: A technique for rendering toxic metals (chromium, lead, cadmium and arsenic) contained in steel plant furnace dust innocuous and suitable for burial with minimal adverse environmental impact. Pelletized iron oxide containing dust is introduced into a rotary hearth furnace under a reducing atmosphere in excess of 600.degree. C. The higher iron oxides are reduced to FeO which in turn complexes with the toxic metals to form relatively benign products.

Abstract: Nickel-chromium alloys consisting essentially of from 30-75 nickel, 12-30% chromium, up to 10% molybdenum, up to 8% tungsten, up to 15% cobalt, up to 5% of niobium and/or tantalum, titanium plus aluminum up to 5%, and carbon nitrogen and silicon in correlated percentages to thereby improve low cycle and thermal fatigue strength, the balance being from 0 to 50% iron.

Abstract: A rock bolt system (10) including a mechanical rock bolt (12) having an interior channel (24) therein and a feeder attachment (14). An anchor may be affixed to the distal end of the rock bolt (12). An aperture (22) extends from the rock bolt (12). The feeder attachment (14), capable of being demountably affixed to the proximal end of the rock bolt (12), supplies hardenable material to the interior channel (24) where it courses through the interior of the rock bolt (12) and exits into the bore hole (16) through the aperture (22). A breather tube (38) extending from the feeder apparatus and into the interior channel (24) permits entrapped air to escape.

Abstract: Uranium is leached from water slurries of uranium ore by incorporating a mixture of sulfur dioxide and air therein to provide the oxidizing and acidifying requirements to accomplish leaching.

Abstract: A carburization-resistant alloy comprising in weight percent about 50 to about 55% nickel, about 16 to 22% chromium, about 3 to about 4.5% aluminum, up to about 5% cobalt, up to about 5% molybdenum, up to about 2% tungsten, about 0.03 to about 0.3% carbon, up to about 0.2% rare earth element, balance essentially iron. The alloy is useful for structures, objects, parts etc. which are exposed in use to carburizing atmospheres and which, periodically are subjected to oxidizing atmospheres. For example the alloys are useful for pyrolysis tubes used in the petrochemical industry which must periodically be subjected to oxidizing atmospheres to burn-out carbon deposits and which, during pyrolysis are in contact with atmospheres having log Po.sub.2 spanning at least the range of -17 to -26 and which exist at various temperatures.

Abstract: A method of manufacturing nickel-iron-chromium alloys for use with recuperators. A combination of intermediate annealing, cold working and final annealing results in an alloy having a greater yield strength than a corresponding solution annealed material. The resultant alloy exhibits an isotropic structure and has high corrosion resistance, a low coefficient of expansion and high levels of ductility and strength.

Abstract: A process for decreasing the embrittling tendency of lithium in aluminum-base alloy compositions containing lithium comprising incorporating silicon in the alloy composition and forming the alloy as a dispersion strengthened powder, and dispersion strengthened aluminum-base alloy compositions comprised of aluminum, lithium and silicon having improved properties.

Abstract: A nickel-chromium-molybdenum base alloy characterised by exceptional structural stability when exposed at temperatures upwards of 1800.degree. F. for prolonged periods of time, such as 10,000 hours.

Abstract: A flux for submerged-arc welding comprising a balanced combination of calcium fluoride, alumina, zirconia, cryolite, magnetite, manganese metal, nickel-niobium alloy, chromium-molybdenum alloy and alkali metal silicate binder.

Abstract: A process for heat treating alloy objects which comprises solution treating a nickel-base alloy containing chromium, molybdenum, copper, titanium, aluminum and iron at a temperature in excess of 955.degree. C. and then aging the alloy without intervening cold work at a temperature in the range of 700.degree. C. to 720.degree. C. This treatment provides non-cold worked structure which is tough, not susceptible to stress corrosion cracking in a test environment simulating a sour gas well environment and which exhibits high level of fracture energy in a slow strain rate tensile test in that environment.

Abstract: An apparatus for continuously conveying ore and the like. A penetrator, rotatably disposed about a common coaxial horizontal axis shared by the forward section of a first conveyor, fluidizes a muck pile to continuously load material onto the first conveyor. Actuators for independently oscillating the penetrator and independently positioning the first conveyor are provided. An optional second conveyor may be employed to transport the material away from the first conveyor.

Abstract: An iron-nickel-chromium-aluminum alloy containing about 30 to 40% nickel, about 15 to less than 19% chromium, about 2 to 4% aluminum, carbon in an amount of at least 0.05% and up to 0.2%, about 0.2 to 0.8% titanium, from 1.5 to 4% molybdenum, up to 0.1% boron, up to 0.5% zirconium, up to about 5% cobalt and the balance iron.Alloy is characterized by (i) carburization resistance and (ii) stress-rupture strength which is desirable for ethylene pyrolysis tubing, (iii) highly oxidation resistant, (iv) cold workable such that mill product forms can be readily produced without deleterious cracking, (vi) ductile, (vii) structurally stable, i.e., will resist forming detrimental quantities of undesirable phases such as sigma, and (viii) weldable.

Abstract: Discloses the use of an invertable, double-cavity mould for use in casting anodes to be electro-processed.

Abstract: A process for the electrochemical production of hydrogen from an aqueous alkaline electrolyte characterized by the use as a cathode of a material having the general formula AB.sub.5 H.sub.x wherein A is one or more of rare earth metals and calcium, B is nickel or cobalt and x is a number, generally from 4 to 8 characteristic of saturation of the AB.sub.5 -compound with hydrogen. The hydrogen is generated at a relatively low overpotential and thus at high efficiency.

Abstract: A method for utilizing a powder metallurgy ("P/M") slurry by employing water atomized metallic powders and subsequently reducing the oxide levels therein to acceptable levels. The slurry comprises a carbon containing binder. The slurry is consolidated and sintered under controlled conditions to reduce the oxide levels.

Abstract: An apparatus (10) and method for consolidating and sintering a tube preform (12) previously fabricated by powder metallurgical techniques. A plurality of forming dies (22, 24) and movable mandrels (30, 32) cooperate to form tube consolidation zone (58,60). One-way tube gripping means (42) permit the tube (12) to progress through the apparatus (10) by the retraction of the mandrels (30, 32) while preventing the tube (12) from retreating back into the zone (58) when the mandrel (30, 32) is advanced. Heating coils (18A, 18B and 18C) heat the tube (12) to sinter it and cause it to expand clear of the mandrels (30, 32). The tube (12) is reduced in diameter and consolidated to greater than 90% theoretical density.

Abstract: A composite tube structure having an inner substrate alloy and an outer, corrosion resistant alloy suitable for use in fluid-bed coal combustion reactors to form a water wall around at least a portion of the periphery of the fluid bed zone. The outer, corrosion resistant alloy centers around a composition of 0.1% carbon, 0.2% silicon, 0.5% manganese, 22% chromium, 3.8% aluminum, 0.4% titanium, 0.05% nitrogen, 0.2% molybdenum, 32% nickel, balance iron.