Abstract: A powder admixture of 97.75% minus 325 mesh atomized alloy powder, which has a composition (by weight) of 94.12% copper, 2.81% silicon, 3.07% aluminum, and 2.25% minus 325 mesh titanium hydride powder is disclosed. The powder is used to form a brazing alloy for brazing ceramics.

Abstract: A heat-resistant TiAl alloy having excellent room-temperature fracture toughness, high-temperature oxidation resistance and high-temperature strength is disclosed. Said alloy consists essentially of from 29 to 35 wt. % aluminum, from 0.5 to 20 wt. % nobium, and at least one element selected from the group consisting of from 0.1 to 1.8 wt. % silicon, and from 0.3 to 5.5 wt. % zirconium, the balance being titanium and incidental impurities. Preferably impurities are limited to 0.6 wt.-% oxygen, 0.1 wt.-% nitrogen and 0.5 wt.-% hydrogen.

Abstract: Soft soldering compositions posessing equal or better melting, wetting and strength properties than conventional straight tin-lead solders but with a reduced tin content are disclosed. The compositions consist of 1-35 wt % tin, 5-30 wt % cadmium 0.05-2.5 wt % antimony, balance essentially lead with 5-30 wt % cadmium, and/or 1-15 wt % bismuth. The solder alloys are characterized by their improved properties concerning solidification temperature gap, spread percentage, wetting time and shear strength. Specific compositions are disclosed having the necessary properties to successfully replace the tradional tin-lead solders containing 30, 40 and 50 wt % tin. The high temperature performance of bonds made with these new alloys are better because of their reduced tendency of intermetallic compounds formation with the substrate due to their lower tin content.

Abstract: A method of carburizing and quenching involves the following three steps of: pre-carburizing a steel member containing Cr with precipitating carbide by heating to achieve a surface carbon concentration of not less than 1%; spheroidizing the carbide obtained by alternately holding the steel member at a temperature slightly above and slightly below the A.sub.1 transformation temperature under a carbon potential of from 0.5 to 1.0%; and carburizing and quenching or carbo-nitriding and quenching the steel member followed by reheating at not more than the heating temperature of pre-carburizing.

Abstract: An alloy is provided which has good operating strength and ductility at temperatures of 2000.degree. to 2500.degree. F. and density of between 6.5 and 7.0 g/cm.sup.3.

Abstract: Drag out of lead with elongated steel elements (1) upon exit from a bath (2) of molten lead is prevented by bringing the elongated steel elements into contact with an amount of a substance such as H.sub.2 S, Hcl or ZnCl.sub.2 /.nNH.sub.4 Cl, that is capable of transforming lead oxide into another product at the exit conditions of said elongated steel elements (1) from the bath (2) of molten lead. The steel may emerge from the bath into a non-oxidizing atmosphere, such as a bed of coal, where the converted lead or lead compound may be mechanically stripped from the element.

Abstract: Utilization of a copper-zinc alloy for semifinished materials and semi-manufactured articles; especially synchronizing rings. The copper-zinc alloy is essentially constituted of 50 to 65% copper, 1 to 6% aluminum, 0.5 to 5% silicon, 5 to 8% nickel, as well as selectively 0 to 1% iron, 0 to 2% lead, 0 to 2% manganese, all in percent by weight, with zince as the remainder, as well as unavoidable impurities, whereby the nickel is overwhelmingly present in an intermetallic composition with silicon (nickel-silicide). The silicides are in round, uniformly distributed fine precipitate form.

Abstract: Dental restorations are made of a high palladium alloy which consists essentially of, on a weight basis, 70-82 percent palladium; 5-8 percent gold; 6.5-8 weight percent silver; 5-9 percent gallium; from 4 to 8 weight percent of a surface oxide producing modifier selected from the group consisting of indium, tin and mixtures thereof, from 0.01 up to 2 percent, ordinarily less than about 0.5 percent, of an oxygen scavenging component which is a member selected from the group consisting of germanium, lithium and mixtures thereof; and up to 2 percent of a grain refiner selected from the group consisting of ruthenium, rhenium and iridium. Alloy can be melted without the need of shielding the alloy from the atmosphere.

Abstract: An alpha-beta titanium base alloy comprising, in weight percent, 0.04 to 0.10 silicon and 0.03 to 0.08 carbon, characterized by an increase in strength over that of the alloy lacking the silicon and carbon additions. The alloy may additionally comprise 6 aluminum, 4 vanadium, up to 0.3 iron and up to 0.25 oxygen.

Abstract: Air quenching apparatus develops a pearlite microstructure in the head of a longitudinally travelling railroad rail as it travels under the apparatus. A primary air chamber at a controlled pressure provides air to the top and side surfaces of the rail heads. A secondary air chamber at a separately controlled pressure provides air to the shoulders of the rail heads. More than one quench unit may be used in series, in which case the pressures in the primary air chambers may progressively increase to increase the cooling rate.

Abstract: A soft magnetic amorphous ternary alloy of Co-Ta-Hf which comprises a composition represented by Co.sub.x Ta.sub.y Hf.sub.z, wherein the composition ratio of x, y and z ranges, in atomic %,81%.ltoreq.x.ltoreq.85%8%.ltoreq.y.ltoreq.13%5%.ltoreq.z.ltoreq.10%1.ltoreq.y/z.ltoreq.2.5and x+y+z=100%. Thus, the refractory amorphous alloy has excellent thermal stability, preferable soft magnetic property, high mass productivity, and can be heat treated at 500.degree. C. or higher.

Abstract: An alloy having high strength at high temperature is provided.

Abstract: A process for forming a carburized steel article includes carburizing a steel material containing not more than 0.10% silicon and less than 1.1% chromium to form an austenitic surface matrix having a high density of carbides dispersed therein. After quenching, the carburized steel article is characterized by an outer surface having a high ratio of carbides and is substantially free of intergranular oxides. As a result of preventing undesirable surface oxide formations and simultaneously providing a beneficial surface carbide structure, the bending fatigue strength, wear properties, and contact fatigue strength of articles such as gears, shafts, bearings and couplings are greatly enhanced.

Abstract: A titanium alloy comprising about 20 to 30 atomic percent (a/o) aluminum, about 3 to 5 a/o niobium, about 3 to 5 a/o vanadium, and about 3 to 5 a/o molybdenum, balance titanium. The alloy can be dispersion strengthened by the addition of small amounts, i.e. up to about 1 a/o of sulfur or rare earth dispersoids, such as Ce, Er or Y.

Abstract: Apparatus for heat treating a continuously moving metal wire (19) has at least two drum-like rotational body systems (5a, 5b) which are arranged in the heat-treatment area and around which the wire winds with several turns, and which, to avoid the relative movement between the wire and the surface of the rotational bodies as a result of a length change in the wire during the heat treatment, are each constructed of several disc-shaped rotational bodies (5) which are arranged in sequence, are termed below in short as "discs" and have at their periphery self-contained wire-guiding grooves (6), with all discs of one disc row (5a) being faced by allocated discs of another disc row (5b) with axially offset wire-guide grooves (6).