Abstract: A method and apparatus for removal of glass from metal surfaces, as for example, glass tubing from aspiration cast rods, is provided in which the glass coated metal is passed between a pair of spaced driven rolls, one being a resilient roll and the other a toothed metal roll, said rolls being adjustable to vary the spacing therebetween dependent upon the thickness of metal being cleaned, whereby the glass coating is broken into small fragments by the toothed roll.

Abstract: A nickel-base alloy that is corrosion resistant to hydrogen, sulfide and chloride stress cracking is provided consisting essentially of about 17 to 23% chromium, 8 to 10% molybdenum, 15 to 22% iron, limited contents of cobalt, silicon and manganese, 0.030% maximum carbon and the balance nickel and incidental impurities. The alloy is eminently suited for use as components in so-called "sour-gas" well operations.

Abstract: An alloy and a metal product characterized by resistance to localized corrosion, hydrogen sulfide stress cracking (hydrogen embrittlement) and stress corrosion cracking at temperatures up to about 200.degree. C. consisting essentially of nickel 40-65%, cobalt 0-5%, chromium 10-20%, molybdenum 12-18%, iron 10-20%, tungsten up to 5%, carbon 0-0.1% manganese up to 3%, vanadium up to 1% and silicon up to 0.2%. The alloy resistance is maintained when it is cold worked over 20%.

Abstract: An alloy containing 20-23% chromium, 17-20% iron, up to 2.5% cobalt, 7-10% molybdenum, up to 1% tungsten, up to 0.15% carbon, 0.2-1% silicon, up to 1% manganese and the balance nickel is greatly stabilized with respect to weld crack resistance by the addition of lanthanum in effective but small carefully controlled amounts to 0.08% in the presence of silicon as an essential minor ingredient.

Abstract: A casting head and clamp arrangement for vacuum aspiration casting of metal rods in glass tubes is provided having a casting head with a generally vertical vacuum passage, a removable vacuum chuck in the lower end of said vacuum passage adapted to receive and hold the end of a glass tube, said chuck including a pair of spaced annular support discs, spaced elongate members connecting said support discs, sleeve members having an internal diameter larger than a glass tube to be held fixed on each of support disc annulus and projecting beyond said discs between the elongate members, an elastomer tube stretched and fixed at its opposite ends to the sleeve members and having an internal diameter smaller than the diameter of the glass tube to be held and vacuum means acting between said discs to cause the elastomer tube to enlarge in internal diameter under vacuum to permit insertion of the glass tubes to be held and to engage and hold the glass tube ends when the vacuum is released.

Abstract: A method and apparatus are provided for forming hollow superalloy ingots by melting a molten superalloy electrode by ESR techniques into a molten slag held in a generally cylindrical mold having an axially movable mandrel until the molten metal is adjacent the level of but not over the top of the mandrel, cooling the metal sufficiently to form supporting external and internal walls, moving the mandrel vertically relative to the cooled metal, continuing to melt metal into said slag while moving the mandrel at a rate such that the molten metal remains at a substantially constant level adjacent the top of the mandrel and cooling the formed hollow ingot.

Abstract: A process and an alloy are provided for producing high strength material having good ductility to provide a high strength, corrosion resistant alloy including the steps of (1) preparing a body of material having a composition consisting essentially of by weight, about 13% to 18% chromium, about 13% to 18% molybdenum, less than 0.01% carbon, less than about 6% iron, less than about 1.25% cobalt, less than about 4% tungsten, less than 0.5% aluminum, less than 1% manganese, less than 0.5% silicon, and the balance nickel with usual transient metals and impurities in ordinary amounts, and (2) thereafter aging said body at a temperature in the range about 900.degree. and 1100.degree. F to effect an A.sub.2 B ordering reaction in the composition.

Abstract: A powder metallurgy compact and a sintered product is provided from high performance alloys difficult to compact and/or sinter. The green compact comprises a mixture of the alloy powder, which, as a result of blending and extruding is coated with a film of a solid organic binder, and consolidated to discrete bodies of an intermediate density. The green compacts are sintered to produce a final solid product.

Abstract: A method of salvaging and restoring physical and mechanical properties to hard and brittle cast metal parts which have undergone creep damage is provided which comprises hot isostatically pressing said metal parts at temperatures and pressures sufficient to undo the creep and eliminate creep-induced micro defects.

Abstract: Articles of high performance chromium-containing cobalt-base alloys sintered from powder contain boron in amounts between about 0.1 and 1.0%. The addition of boron widens the range of sintering temperatures sufficiently to make possible commercial production of articles of compositions which otherwise are difficult or impossible to sinter.

Abstract: A thermally stable, oxidation-resistant nickel-base alloy having good engineering properties for use in mechanical equipment operated at temperatures of up to 1600.degree. F. or higher is provided by maintaining the nickel content above 50% by weight and including as essential elements from about 12 to about 18% chromium, from about 8 to about 18% molybdenum and from about 0.005 to about 0.2% lanthanum by weight. Additional elements may be included in limited amounts provided that the average N.sub.v number of the alloy as defined herein is not substantially above about 2.5 and preferably is below about 2.4.

Abstract: Parts are formed from metal powder by mixing the powder with a plastic medium comprising an organic binder dissolved in a solvent in which it is soluble at room temperature but in which it is substantially less soluble at a higher temperature such that the plastic binder becomes viscous at that temperature. Binder modifiers may be incorporated to promote mold release and promote healing of interfaces within the molded part and prevent the formation of drying cracks. The plastic mixture is injected under pressure into a closed die preheated to the above mentioned higher temperature, whereby the rejection of solvent and increase in viscosity of the plastic medium produces a compact sufficiently self-supporting to hold its molded shape and be ejected from the die. The compact is then dried to evaporate the remaining solvent, thus leaving interconnecting pores in the compact for the escape of gases resulting from subsequent burning out of the binder during the sintering operation.

Abstract: A casting head and clamp arrangement for vacuum aspiration casting of metal rods in glass tubes is provided having a casting head with a generally vertical vacuum passage, a removable fluid pressure chuck in the lower end of said vacuum passage adapted to receive and hold the end of a glass tube, said chuck including a pair of spaced annular support discs, spaced elongate members connecting said support discs, sleeve members having an internal diameter larger than a glass tube to be held fixed on each of support disc annulus and projecting beyond said discs between the elongate members, an elastomer tube fixed at its opposite ends to the sleeve members and having an internal diameter larger than the diameter of the glass tube to be held and fluid pressure means acting between said discs to cause the elastomer tube to decrease in effective internal diameter under pressure to engage and hold the glass tube ends and to release the tube ends when the fluid pressure is released.

Abstract: An alloy containing 20-23% chromium, 17-20% iron, up to 2.5% cobalt, 7-10% molybdenum, up to 1% tungsten, up to 0.15% carbon, 0.2-1% silicon, up to 1% manganese and the balance nickel is greatly stabilized with respect to weld crack resistance by the addition of lanthanum in effective but small carefully controlled amounts to 0.08% in the presence of silicon as an essential minor ingredient.

Abstract: A nickel-base alloy is provided having excellent corrosion resistance to both oxidizing and reducing environments in all of the annealed, welded and thermally aged conditions. The alloy has the broad composition:______________________________________ Chromium 12-18 Molybdenum 10-18 Iron 0-3 Tungsten 0-7 Aluminum <0.5 Carbon 0.02 max. Silicon 0.08 max. Cobalt <2 Manganese <0.5 One of the group Titanium, up to 0.

Abstract: A wire drawing die blank and method of producing the same is provided in which the blank is made by:A. forming a compact of a superalloy powder containing a diamond and having an outside diameter smaller than the diameter of the drawing apparatus die aperture in which it is to be used,B. pressing a ring of powdered stainless steel having an inner annular opening adapted to receive the sintered superalloy compact containing a diamond and an outer diameter adapted to fit a drawing die apparatus aperture in which it is to be used, said powdered stainless steel having a shrinkage coefficient on sintering sufficient to cause the ring to shrink onto and tightly engage said compact, andC. sintering the stainless steel at a temperature below the melting point of the compact to consolidate and shrink the stainless steel onto the compact and to metallurgically bond the stainless steel and the superalloy of the compact.

Abstract: A powder metallurgy compact and a sintered product is provided from high performance alloys difficult to compact and/or sinter. The green compact comprises a mixture of the alloy powder, which, as a result of blending and extruding is coated with a film of a solid organic binder, and consolidated to discrete bodies of an intermediate density. The green compacts are sintered to produce a final solid product.

Abstract: A cast thermally stable high temperature nickel-base alloy characterized by superior oxidation resistance, sustainable hot strength and retention of ductility on aging is provided by maintaining the alloy chemistry within the composition molybdenum 13.7% to 15.5%; chromium 14.7% to 16.5%; carbon up to 0.1%, lanthanum in an effective amount to provide oxidation resistance up to 0.08%; boron up to 0.015%; manganese 0.3% to 1.0%; silicon 0.2% to 0.8; cobalt up to 2.0%; iron up to 3.0%; tungsten up to 1.0%; copper up to 0.4%; phosphorous up to 0.02%; sulfur up to 0.015%; aluminum 0.1% to 0.5% and the balance nickel while maintaining the Nv number less than 2.31.

Abstract: Nickel and cobalt base alloy articles are provided coated with a composition consisting essentially of about 20-60% chromium, 6-11% aluminum, 0.01-2.0% of a reactive metal such as yttrium, lanthanum or cerium and the balance nickel.

Abstract: In the manufacture of filled tube rods the ends of the rods are sealed with a solid organic film volatilizable at welding temperature to provide a contaminant free weldment. The organic film is preferably a sealant composition containing pyroxylin (nitrocellulose), ether, and absolute alcohol as principal ingredients, and dried by very rapid means, i.e., infrared heating.