Abstract: A method of preparing an oxygen-containing ferromagnetic amorphous alloy comprising the step of: sputtering an oxygen-containing composite target composed of an oxide and a metal or metal alloy, thereby forming a film of the amorphous alloy on a substrate, the amorphous alloy consisting of:M.sub.x G.sub.y O.sub.zwhere M is one or more transition metals of Fe, Co and Ni; or a combination of the transition metal or metals and one or more metals selected from the group consisting of V, Cr, Mn, Nb, Mo, Hf, Ta, W, Pt, Sm, Gd, Tb, Dy and Ho; G is one or more elements selected from the group consisting of B, Ge, As, Sb, Ti, Sn and Zr; oxygen (O) is supplied by the oxide; and x, y and z are the atomic percentages of M, G and O and x+y+z=100, the composition of the amorphous alloy being in the pentagonal hatched zone in FIG. 1 and the pentagonal zone being defined by the lines joining the points of A (80, 19, 1), B (50, 49, 1), C (36, 36, 28), D (36, 4, 60) and E (38.5, 1.5, 60) shown in FIG. 1.

Abstract: A process for manufacturing a silicon-germanium alloy comprising introducing SiH.sub.4 gas, GeCl.sub.4 gas and P-type or N-type doping gas into a reaction vessel, heating a substrate up to a temperature not lower than 750.degree. C., and depositing a thickly-grown, bulky silicon-germanium alloy upon the substrate within the reaction vessel.

Abstract: A filler metal for brazing parts made of superalloys has a brazing temperature of 1025.degree.-1080.degree. C., a solidus temperature above 1000.degree. C., a liquidus temperature above 1018.degree. C. and a composition of, in weight percent, 5-30 gold, 15-35 palladium, 10-30 nickel, 20-48 copper, 5-25 manganese.

Abstract: Composite materials and methods for making such materials are disclosed in which dispersed ceramic particles are at chemical equilibrium with a base metal matrix, thereby permitting such materials to be remelted and subsequently cast or otherwise processed to form net weight parts and other finished (or semi-finished) articles while maintaining the microstructure and mechanical properties (e.g. wear resistance or hardness) of the original composite. The composite materials of the present invention are composed of ceramic particles in a base metal matrix. The ceramics are preferably carbides of titanium, zirconium, tungsten, molybdenum or other refractory metals. The base metal can be iron, nickel, cobalt, chromium or other high temperature metal and alloys thereof. For ferrous matrices, alloys suitable for use as the base metal include cast iron, carbon steels, stainless steels and iron-based superalloys.

Abstract: A method to produce titanium alloy articles having high creep resistance which comprises the steps of:(a) providing a titanium alloy material containing at least one dispersoid forming alloy addition:(b) hydrogenating the alloy material to a level of about 0.1 to 4.0 weight percent hydrogen;(c) introducing the resulting hydrogenated material into a mold;(d) hot compacting the alloy material in the mold to produce a substantially fully dense article;(e) beta heat treating the compacted article; and,(f) dehydrogenating the article.Following heat treatment, the microstructure in the article will be lenticular transformed beta which is highly creep resistant, while size of the dispersoid will be approximately the same as before the heat treatment, due to the relatively low beta treatment temperature.

Abstract: High strength and high wear resistance copper alloys consisting essentially of (I) 54-66% by weight of Cu, 1.0-5.0% by weight of Al, 1.0-5.0% by weight of Mn, 0.1-2.0% by weight of Si, 0.1-3.0% by weight of Sn, 0.01-1.0% by weight of B, and as the remainder, Zn and inevitable impurities, and (II) 54-66% by weight of Cu, 1.0-5.0% by weight of Al, 1.0-5.0% by weight of Mn, 0.1-2.0% by weight of Si, 0.1-3.0% by weight of Sn, 0.01-1.0% by weight of B, 0.1-4.0% by weight of one or more elements selected from Fe, Ni and Cr, and as the remainder, Zn and inevitable impurities.

Abstract: Molded bodies of SiC ceramic can be firmly bonded to each other or to mol bodies of other ceramic material or to metal workpieces by the establishment of diffusion-welding conditions when a metal alloy layer is interposed between cleaned and polished surfaces that are to be joined. The alloy metal of the layer is MnCu or MnCo or multi-component alloys containing the foregoing as a base and additions of other metals to a total percentage not exceeding 70% with each single other metal being present in the range from 2 to 45% by weight. Such other metals constitute 1 or more of Cr, Ti, Zr, Fe, Ni, V and Ta. The Mn, Cu alloy or alloy base has a Cu content from 10 to 90%, preferably 25 to 82% and the MnCo alloy or alloy base has a cobalt content of 5 to 50% by weight. MnCuFe eutectic compositions containing 5 to 30% by weight Fe and 10 to 90% by weight Cu and MnCoCr eutectic compositions with chromium content from 2 to 45% by weight are preferred, especially 50:40:10 MnCuFe and 60:30:10 MnCoCr.

Abstract: An improved austenitic alloy having in wt % 19-21 Cr, 30-35 Ni, 1.5-2.5 Mn, 2-3 Mo, 0.1-0.4 Si, 0.3-0.5 Ti, 0.1-0.3 Nb, 0.1-0.5 V, 0.001-0.005 P, 0.08-0.12 C, 0.01-0.03 N, 0.005-0.01 B and the balance iron that is further improved by annealing for up to 1 hour at 1150.degree.-1200.degree. C. and then cold deforming 5-15 %. The alloy exhibits dramatically improved creep rupture resistance and ductility at 700.degree. C.

Abstract: A brazing foil is composed of metastable material having a microcrystalline structure and a composition consisting essentially of about 15 to 40 weight percent copper, 0 to 32 weight percent zinc, 0 to 24 weight percent cadmium, 0 to 3 weight percent nickel and 0 to 10 weight percent tin, the balance being silver and incidental impurities. The foil is clean, homogeneous, brittle and is especially adapted for comminution into powder.

Abstract: This invention is directed to the preparation of Iron-cobalt powders by reacting iron tricobalt hydrido dodecacarbonyl with iron pentacarbonyl and pyrolyzing the resulting metal-organic iron cobalt clusters.

Abstract: An austenitic alloy has high strength and corrosion resistance and includes from 27 to 32 weight percent nickel and 24 to 28 weight percent chromium. Up to 2.75 weight percent silicon, 3 weight percent copper and molybdenum and 2 weight percent manganese are included for contributing to the characteristics to the alloy rendering the alloy particularly useful for fabricating oil well tubular products. Only very low components of nitrogen, carbon, phosphorus and sulfur are included.

Abstract: A brazing alloy system having a brazing temperature of 1025.degree. to 1080.degree. C., a solidus temperature above 1000.degree. C., a liquidus temperature above 1018.degree. C., consisting of, in weight percent, 5-30 Au, 15-35 Pd, 10-30 Ni, 20-48 Cu, and 15-25 Mn. Preferred brazing alloys are (1) 25 Au, 15 Pd, 18 Ni, 31 Cu, and 11 Mn, (2) 5 Au, 30 Pd, 10 Ni, 40 Cu, and 15 Mn, and (3) 15 Au, 20 Pd, 13 Ni, 41 Cu, and 11 Mn.A method of joining superalloy parts using these alloys as a braze is disclosed, as well as a panel made of a honeycomb structure of thin superalloy metal sandwiched between two sheets of superalloy and brazed with these alloys.

Abstract: Aluminium is alloyed by adding alloying ingredients to the molten metal in an intermediate treatment vessel or ladle rather than as at present in a casting furnace. If several ladles are used to supply the casting furnace, the alloying ingredients may be added to some but not all of them. A preferred order of addition of alloying ingredients is: (i) AlF.sub.3 to reduce unwanted Na, Ca and Li; (ii) one or more of Mn, Fe, Cr, Ni, Cu, Zn and Si in powder form; (iii) one or more of Zn, Cu and Si in massive form; (iv) Mg. A ladle/impeller design is described.

Abstract: A method and apparatus for ultrapurification of indium and other metals having a wide liquid range and low vapor pressure. The purification method involves producing a small-diameter stream of liquified metal, directing this stream along a predetermined path while subjecting it to a high vacuum and heating it to vaporize volatile impurities, then collecting and solidifying the purified stream. The method is optimally practiced in the ultrahigh vacuum and substantially zero gravity environment of outer space. Apparatus for practicing the method in outer space employs a containerless refining zone in which the stream of liquid metal being purified is directed along a path defined by edges of thin guides fabricated of material which is not substantially wetted by the liquid metal. Heating of the liquid metal stream is accomplished via RF coils surrounding the guides defining the stream path. Upon collection, the purified metal stream may be further subjected to a secondary refining process.

Abstract: A powdery raw material for manufacturing an anode of a fuel cell comprises a powder of a nickel-base alloy consisting essentially of 0.5-10 percent by weight aluminum, and the balance of nickel and inevitable impurities, and having a mean grain size of 3-20 microns. The nickel-base alloy powder may contain 0.01-1.0 percent by weight oxygen, and/or may have an apparent density of 0.5-3.5 g/cm.sup.3, and a specific surface area of at least 0.12 m.sup.2 /g. Advantageously, the nickel-base alloy powder is formed by means of water-atomization under a condition that the water injection pressure is 400 Kg/cm.sup.2, and the specific water quantity is 0.02-0.2 m.sup.3 /Kg, the thus manufactured anodes exhibit initial anode characteristics as excellent as those of conventional anodes, and possess such excellent high-temperature creep strength and sintering resistance, thereby exhibiting excellent anode characteristics over a long period of time.

Abstract: The adherence of protective chromia (chromium oxide) scales on Ni-Cr coatings is substantially improved by limiting the amount of sulfur in the coating composition to below about 5 parts per million by weight. Volatilization of the chromium oxide scale is also reduced by controlling the sulfur content. The coatings of this invention have improved resistance to oxidation and hot corrosion degradation than the coatings of the prior art.

Abstract: The alloys of this invention are of low strategic element content, non-magnetic, resistant to chloride-containing solutions as well as a wide range of other chemical agents, air-meltable, castable, of greatly improved fabricability and weldability, and consist by weight percentages of from about 20.5% to about 35.5% by weight Ni, from about 23.5% to about 27.5% by weight Cr, from about 4.0% to about 6.7% by weight Mo, from about 0.7% to about 3.6% by weight Cu, up to about 0.09% by weight C, up to about 1.5% by weight Si, up to about 5% by weight Co, up to about 0.45% by weight N, up to about 1% by weight Ti, up to about 0.8% by weight Cb, and up to about 0.3% by weight Ce, La or Misch metal, up to about 2% by weight Mn, up to about 1.6% by weight Ta, and the balance essentially ironThe combined content by weight of Ni plus Co is at least about 25.5% by weight and exceeds the weight content of Cr by at least 2% but by not more than 8%.

Abstract: Provided are improved nickel-based surfacing alloys containing from about 0.2% to about 5.0% by weight of either or both hafnium and niobium to the total alloy weight and iron-based surfacing alloys containing the combination of about 1.5% to about 2.5% by weight carbon in conjunction with from about 1.0% to about 2.5.% silicon whereby both types of alloys are characterized by having reduced porosity arising during the process of depositing them in a molten state by a weld surfacing process upon a nitrogen containing steel substrate.

Abstract: A method of producing an alloy containing at least one major ingredient selected from the group consisting of iron (Fe), cobalt (Co), and Nickel (Ni) and having low contents of sulphur, oxygen, and nitrogen, comprises steps of:(a) holding a molten alloy in a container selected from the group consisting of a lime crucible, a lime crucible furnace, a converter and a ladle lined with a basic refractory consisting of 15-85% of calcium oxide (CaO), and 15-75% of magnesium oxide (MgO), wherein said alloy consists essentially of at least one major ingredient selected from the group consisting of iron (Fe), nickel (Ni), and cobalt (Co);(b) adding at least one additive, based on the molten alloy, into said molten alloy in an atmosphere selected from the group consisting of a non-oxidizing atmosphere and a vacuum, wherein said additive is selected from the group consisting of aluminum (Al), aluminum alloys, silicon and silicon alloys;(c) desulphurizing, deoxidizing and denitrifying said molten alloy under an atmosphere

Abstract: A sludge-like waste containing fine particulate gallium compound, an organic substance capable of forming coke upon calcination and a light oil or water are treated for the recovery of the gallium value as molten metallic gallium by a process wherein the waste is first dried to form a dense aggregate of the particulate gallium compound, followed by calcination and vacuum thermal decomposition. The aggregate may be molded under pressure into any desired shape before calcination.