Containing Over 50 Per Cent Metal, But No Base Metal Patents (Class 148/442)
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Patent number: 5810981Abstract: There is provided a hydrogen occluding alloy exhibiting high absorption and desorption speeds. A hydrogen occluding alloy comprising as an overall composition: 25 to 45 weight % Zr+Hf, wherein the Hf comprises not more than 4%, 1 to 15 weight % Ti, 10 to 20 weight % Mn, 2 to 12 weight % V, 0.6 to 5 weight % rare earth elements, and a balance Ni (of which content is not less than 25 weight %) and unavoidable impurities, and basically having a three-phase structure consisting of: a net-shaped continuous phase which is made of a Ni--Zr type alloy, a main phase (in the net-shaped continuous phase) made of a Zr--Ni--Mn based alloy, and a dispersed granular phase made of a rare earth elements-Ni type alloy distributed along the net-shaped continuous phase.Type: GrantFiled: March 8, 1996Date of Patent: September 22, 1998Assignee: Mitsubishi Materials CorporationInventors: Norikazu Komada, Mitsugu Matsumoto, Shinichiro Kakehashi, Yoshitaka Tamo, Chris N. Christodoulou
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Patent number: 5792286Abstract: A high-strength thin plate, such as for IC lead frames, of an iron-nickel-cobalt alloy which is able to withstand repeated bending and is corrosion resistance and etchable, the alloy containing 27 to 30 wt. % N:, 5 to 18 wt. % Co, 0.10 to 3.0 wt. % Mn, 0.10 wt. % or less Si, 0.010 to 0.075 wt. % C, 0.001 to 0.014 wt. % N, less than 2.0 ppm H, 0.0040 wt. % or less S, 0.004 wt. % or less P, 0.0050 wt. % or less O, 0.01 to 0.06 wt. % Cr, 0.01 to 1.0 wt. % Mo and the balance being Fe and unavoidable impurities wherein 63.5 wt. %.ltoreq.2Ni+Co+Mn.ltoreq.65 wt. % for Co<10 wt. % and 69.5 wt. %.ltoreq.2Ni+Co+Mn.ltoreq.74.5 wt. % for Co>10 wt. %.Type: GrantFiled: March 20, 1995Date of Patent: August 11, 1998Assignee: NKK CorporationInventors: Tadashi Inoue, Kiyoshi Tsuru, Naotsugu Yamanouchi, Tomoyoshi Okita
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Patent number: 5759300Abstract: Alloy foils for liquid-phase diffusion bonding of heat-resisting metals in an oxidizing atmosphere comprise 6.0 to 15.0 percent silicon, 0.1 to 2.0 percent manganese, 0.50 to 30.0 percent chromium, 0.10 to 5.0 percent molybdenum, 0.50 to 10.0 percent vanadium, 0.02 to 1.0 percent niobium, 0.10 to 5.0 percent tungsten, 0.01 to 0.5 percent nitrogen, 0.10 to 5.0 percent boron, plus 0.005 to 1.0 percent carbon, and/or either or both of 0.01 to 5.0 percent titanium and 0.01 to 5.0 percent zirconium, all by mass, with the balance comprising nickel and impurities, and have a thickness of 3.0 to 300 .mu.m. Alloy foils for liquid-phase diffusion bonding of heat-resisting metals in an oxidizing atmosphere are also available with substantially vitreous structures.Type: GrantFiled: September 27, 1996Date of Patent: June 2, 1998Assignee: Nippon Steel CorporationInventors: Yasushi Hasegawa, Hisashi Naoi, Yuuichi Satoh, Hiroshi Ukeba
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Patent number: 5755896Abstract: Solder compositions (by weight percent) (1) comprising between 37-53% tin, 37-57% bismuth, and 6-10% indium and having a melting temperature between 99.degree.-124.degree. C., and (2) comprising between 48-58% tin, 40-50% bismuth, and 2-5% indium and having a melting temperature between 125-157.Type: GrantFiled: November 26, 1996Date of Patent: May 26, 1998Assignee: Ford Motor CompanyInventors: Mohan R. Paruchuri, Dongkai Shangguan
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Patent number: 5753054Abstract: Addition of Mo to a Zr--Mn--V--Cr--Co--Ni, a Zr--Mn--Cr--Co--Ni hydrogen storage alloy, or those including Ti as substitution for Zr improves high-rate discharge characteristics of the hydrogen storage alloy at low temperatures. The hydrogen storage alloy is of the general formula ZrMn.sub.a V.sub.b Mo.sub.c Cr.sub.d Co.sub.e Ni.sub.f, wherein 0.4.ltoreq.a.ltoreq.0.8, 0.ltoreq.b<0.3, 0<c.ltoreq.0.3, 0<d.ltoreq.0.3, 0<e.ltoreq.0.1, 1.0.ltoreq.f.ltoreq.1.5, 0.1.ltoreq.b+c.ltoreq.0.3, and 2.0.ltoreq.a+b+c+d+e+f.ltoreq.2.4, or Zr.sub.1-x Ti.sub.x Mn.sub.a V.sub.b Mo.sub.c Cr.sub.d Co.sub.e Ni.sub.f, wherein 0<x.ltoreq.0.5, 0.4.ltoreq.a.ltoreq.0.8, 0.ltoreq.b<0.3, 0<c.ltoreq.0.3, 0<d.ltoreq.0.3, 0<e.ltoreq.0.1, 1.0.ltoreq.f.ltoreq.1.5, 0.1.ltoreq.b+c.ltoreq.0.3, x.ltoreq.b+c+d+e, and 1.7.ltoreq.a+b+c+d+e+f.ltoreq.2.2 or Zr.sub.1- Ti.sub.x Mn.sub.a Mo.sub.c M.sub.y Cr.sub.d Ni.sub.f, wherein M is at least one selected from the group consisting of Fe, Cu, and Zn, and wherein 0<x.ltoreq.Type: GrantFiled: April 17, 1996Date of Patent: May 19, 1998Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoichiro Tsuji, Osamu Yamamoto, Yasuharu Yamamura, Hajime Seri, Yoshinori Toyoguchi
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Patent number: 5695716Abstract: The present invention relates to high chromium, corrosion resistant, austenitic alloys and to the use thereof.Type: GrantFiled: May 21, 1996Date of Patent: December 9, 1997Assignees: Bayer Aktiengesellschaft, Krupp VDM GmbHInventors: Michael Kohler, Ulrich Heubner, Kurt-Wilhelm Eichenhofer, Michael Renner
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Patent number: 5667600Abstract: Disclosed is a practical aluminum-based alloy containing 1 to 99 weight percent beryllium and improved methods for the investment casting of net shape aluminum-beryllium alloy parts.Type: GrantFiled: March 31, 1994Date of Patent: September 16, 1997Assignee: Brush Wellman, Inc.Inventors: Fritz C. Grensing, James M. Marder, Jere H. Brophy
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Patent number: 5658401Abstract: A copper-zinc alloy for semi-finished products and articles which are highly loaded and subjected to extreme wear especially synchronizing rings. The alloy possesses a composition of 40 to 65% Cu, 8 to 25% Ni, 2.5 to 5% Si, 0 to 3% Al, 0 to 3% Fe, 0 to 2% Mn and 0 to 2% Pb, with the balance being zinc and unavoidable impurities. The Ni:Si ratio is about 3 to 5:1, and the structure consists of at least 75% .beta.-phase, with the balance .alpha.-phase, in the absence of a .gamma.-phase. Nickel silicides occur predominantly as a round intermetallic phase. The alloy provides quite substantially higher levels of resistance to wear.Type: GrantFiled: December 29, 1995Date of Patent: August 19, 1997Assignee: Diehl GmbH & Co.Inventors: Norbert Gaag, Peter Ruchel
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Patent number: 5656104Abstract: The present invention aims to provide a metal mold for glass, which needs not apply any swab in molding of glass, enabling no-swabbing glass forming. The alloy for the mold comprises by weight Cu: 10 to 80%, Al: 4 to 11%, Cr: 3 to 16%, Ni: 2 to 36%, and at least one rare earth element: 0.02 to 2.08 with the balance consisting of Fe and further comprises at least one member selected from the group consisting of Ti: Al %.times.0.5 to 2, V: Al %.times.0.2 to 1, Zr: Al %.times.0.1 to 0.3, and Nb: Al %.times.0.1 to 0.3. The alloy is gradually cooled from the solidification initiation temperature to 500.degree. C. at a cooling rate of 10.degree. C./min. The surface of the mold is coated with an Al-containing coating or roughened to an average roughness of 0.3 to 5 .mu.m. A solid lubricating film is provided in a fitting portion of the mold, or alternatively a self-lubricating solid is embedded in the fitting portion of the mold.Type: GrantFiled: June 7, 1995Date of Patent: August 12, 1997Assignee: Nippon Steel CorporationInventors: Hiroto Imamura, Michio Endo, Syoichi Sekiguchi, Shigeki Ogura, Isao Arikata, Mitsuji Hirata, Koji Akafuji, Hirokazu Taniguchi, Toru Ono
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Patent number: 5637159Abstract: This invention relates to nickel-cobalt based alloys comprising the following elements in percent by weight: from about 0.002 to about 0.07 percent carbon, from about 0 to about 0.04 percent boron, from about 0 to about 2.5 percent columbium, from about 12 to about 19 percent chromium, from about 0 to about 6 percent molybdenum, from about 20 to about 35 percent cobalt, from about 0 to about 5 percent aluminum, from about 0 to about 5 percent titanium, from about 0 to about 6 percent tantalum, from about 0 to about 6 percent tungsten, from about 0 to about 2.5 percent vanadium, from about 0 to about 0.06 percent zirconium, and the balance nickel plus incidental impurities, the alloys having a phasial stability number N.sub.v3B less than about 2.60. Furthermore, the alloys have at least one element selected from the group consisting of aluminum, titanium, columbium, tantalum and vanadium. Also, the alloys have at least one element selected from the group consisting of tantalum and tungsten.Type: GrantFiled: April 7, 1995Date of Patent: June 10, 1997Assignee: SPS Technologies, Inc.Inventor: Gary L. Erickson
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Patent number: 5637160Abstract: There is provided a machinable .alpha.+.beta. brass containing bismuth and phosphorous. By maintaining the phosphorous content within a critical range, the alloy exhibits good elevated temperature tensile elongation in the temperature range of 100.degree. C.-350.degree. C. without a decrease in machinability due to phosphide formation. In preferred embodiments, the alloy further contains a tin addition for enhanced corrosion resistance. The combination of tin and phosphorous provides enhanced corrosion resistance to the alloy than could be predicted from either addition alone.Type: GrantFiled: July 20, 1994Date of Patent: June 10, 1997Assignee: Olin CorporationInventors: Andrew J. Brock, John F. Breedis, Jack Crane, Julius C. Fister, Frank N. Mandigo, David D. McDevitt, Mark N. Pearman, Ronald N. Caron
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Patent number: 5605582Abstract: An alloy sheet having a pierced hole face and providing a desirable etching performance, comprising {331}, {210}, and {211} planes on the surface; the gathering degree of the {311} plane being 14% or less, the gathering degree of the {210} plane being 14% or less, and the gathering degree of the {211} plane being 14% or less; and the ratio of the gathering degrees expressed by the equation {210}/({331}+{211}) being 0.2 to 1. An alloy sheet having a pierced hole face providing a desirable etching performance, comprising planes of {111}, {100}, {110}, {311}, {331}, {210} and {211}; the gathering degree of the {111} plane, S.sub.1, being 1 to 10%, the gathering degree of the {100} plane, S.sub.2, being 50 to 94%, the gathering degree of the {110} plane, S.sub.3, being 1 to 24%, the gathering degree of the {311} plane, S.sub.4, being 1 to 14%, the gathering degree of the {331} plane, S.sub.5, being 1 to 14%, the gathering degree of the {210} plane, S.sub.Type: GrantFiled: November 17, 1993Date of Patent: February 25, 1997Assignee: NKK CorporationInventors: Tadashi Inoue, Hidekazu Yoshizawa, Kiyoshi Tsuru, Yoshiaki Shimizu, Tomoyoshi Okita
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Patent number: 5556486Abstract: The invention relates to a composite material comprising a matrix mainly constituted by an intermetallic compound of the AlNi type containing in solid solution 1.5 to 30 atom % silicon and a reinforcement formed from silicon carbide (SiC) particles dispersed in said matrix.In said material, the presence of silicon leads to a thermodynamic equilibrium system no longer evolving by SiC reinforcement/matrix chemical reaction when raised to a high temperature.This material can be prepared by conventional processes by adding the silicon to the starting material or by carrying out a limited reaction during the preparation between an AlNi matrix and the silicon carbide particles.Type: GrantFiled: July 12, 1994Date of Patent: September 17, 1996Assignee: Aerospatiale SOciete Nationale IndustrielleInventors: Henri Abiven, Christophe Colin, Jean Bouix, Michel Macari, Jean-Claude Viala
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Patent number: 5554232Abstract: An amorphous metal wire having the following composition by atomic %:(Fe.sub.a Co.sub.b).sub.100-(y+z) Si.sub.y B.sub.zwhere 0.4.ltoreq.a.ltoreq.0.6, a+b=1, 6.ltoreq.y.ltoreq.8, and 13.ltoreq.z.ltoreq.16. The wire shows a Large Barkhausen effect and is excellent in pulse voltage generating properties and toughness. The amorphous metal wire according to the present invention is widely applicable to pulse voltage generating elements and various magnetic markers.Type: GrantFiled: November 2, 1994Date of Patent: September 10, 1996Assignee: Unitika Ltd.Inventors: Katsuyuki Fujimoto, Kohati Nomura, Shuji Ueno
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Patent number: 5543109Abstract: A high Cr austenitic heat resistant alloy excellent in high temperature strength which essentially consists of, in weight percent, from more than 0.02% to 0.10% C, not more than 1.0% Si, not more than 2.0% Mn, 28 to 38% Cr, 35 to 60% Ni, from more than 0.5% to 1.5% Ti, not more than 0.05% N, 0.01 to 0.3% Al, 0.001 to 0.01% B, 0 to 0.1% Zr, 0 to 1.0% Nb, one or both of 0.5 to 3.0% Mo and 1.0 to 6.0% W, and the balance being Fe and incidental impurities. The alloy may further contain one or both of 0.001 to 0.05% Mg and 0.001 to 0.05% Ca. This alloy is suitable for producing a single layered tube which is less expensive and more reliable than the conventional double layered tube.Type: GrantFiled: January 31, 1995Date of Patent: August 6, 1996Assignee: Sumitomo Metal Industries, Ltd.Inventors: Hiroyuki Senba, Yoshiatsu Sawaragi
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Patent number: 5531962Abstract: Cadmium-free brazing solders with working temperatures under 630.degree. C. containing 45 to 80 wt. % silver, 14 to 25 wt. % copper 10 to 25 wt. % gallium, 1 to 7 wt. % zinc and 0 to 5 wt. % indium and/or tin. The alloys have good cold workability and ductility.Type: GrantFiled: August 3, 1994Date of Patent: July 2, 1996Assignee: Degussa AktiengesellschaftInventors: Wolfgang Weise, Alexander Voelcker, Dieter Kaufmann, Willi Malikowski, Joerg Beuers, Harald Krappitz
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Patent number: 5516485Abstract: Air meltable, weldable cast alloys of high hot strength and hot gas corrosion resistance especially in the service temperature range of about 1800.degree. F. to 2100.degree. F. which consist essentially of:______________________________________ Nickel 41-54% by weight Chromium 24-29% Iron 8-18% Cobalt 3-8% Tungsten 4.5-6.5% Molybdenum 4-6.5% Niobium 0.8-2% Manganese 0.1-1.5% Silicon 0.1-1.5% Carbon 0.2-0.4% ______________________________________provided, that the nickel plus cobalt content is at least about 45%.Type: GrantFiled: March 17, 1994Date of Patent: May 14, 1996Assignee: Carondelet Foundry CompanyInventor: John H. Culling
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Patent number: 5489417Abstract: Spray cast copper-manganese-zirconium alloys are disclosed. In one embodiment, the alloy is spray cast in nitrogen and contains from about 1 ppm to about 20 ppm of dissolved nitrogen. In a second embodiment, the alloy contains an addition selected from the group consisting of chromium, titanium, erbium and mixtures thereof. The alloys are useful for sound damping as the combination of zirconium and the addition inhibits degradation of the specific damping capacity of the alloy.Type: GrantFiled: April 14, 1994Date of Patent: February 6, 1996Assignee: Olin CorporationInventors: William G. Watson, Harvey P. Cheskis, Sankaranarayanan Ashok
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Patent number: 5486242Abstract: Tantalum-based and niobium-based alloys made up entirely of a crystalline medium exhibiting a substantially continuous centered cubic structure, comprising an intermetallic compound of formula Ti.sub.2 AlMo, and having the following compositions on an atomic basis:______________________________________ Ta + Cr 20 to 35% Cr 0 to 5% Ti 20 to 40% Al 8 to 20% Mo 8 to 20%, ______________________________________wherein the concentration of Ta is less than 30%; and ______________________________________ Nb + Cr 20 to 60% Cr 0 to 5% Ti 20 to 40% Al 8 to 20% Mo 8 to 20%. ______________________________________ .Type: GrantFiled: May 15, 1995Date of Patent: January 23, 1996Assignee: Office National d'Etudes et de Recherches AerospatialesInventors: Shigehisa Naka, Tasadduq Khan, Andre Walder, Michel Marty, Christophe Delaunay, Pierre Thevenin
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Patent number: 5484569Abstract: A silver/palladium alloy for electronic applications comprises, on a percent by weight basis, 35-60 silver, 20-44 palladium, 5-20 copper, 1-7 nickel, 0.1-5 zinc, to 0.18 boron, up to 0.05 rhenium and up to 1 percent by weight of modifying elements selected from the group consisting of ruthenium, zirconium and platinum. This alloy exhibits high oxidation and tarnish resistance and is formed into wrought electronic components such as contacts and brushes to provide low noise.Type: GrantFiled: August 12, 1994Date of Patent: January 16, 1996Assignee: The J. M. Ney CompanyInventors: Arthur S. Klein, Edward F. Smith, III
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Patent number: 5478417Abstract: The invention provides a controlled coefficient of thermal expansion alloy having in weight percent about 26-50% cobalt, about 20-40% nickel, about 20-35% iron, about 4-10% aluminum, about 0.5-5% niobium plus 1/2 of tantalum weight percent and about 1.5-10% chromium. Additionally the alloy may contain about 0-1% titanium, about 0-0.2% carbon, about 0-1% copper, about 0-2% manganese, about 0-2% silicon, about 0-8% molybdenum, about 0-8% tungsten, about 0-0.3% boron, about 0-2% rhenium, about 0-2% hafnium, about 0-0.3% zirconium, about 0-0.5% nitrogen, about 0-1% yttrium, about 0-1% lanthanum, about 0-1% total rare earths other than lanthanum, about 0-1% cerium, about 0-1% magnesium, about 0-1% calcium, about 0-4% oxidic dispersoid and incidental impurities. The alloy may be further optimized with respect to crack growth resistance by annealing at temperature below about 1010.degree. C. or temperatures between 1066.degree. C. or 1110.degree. C.Type: GrantFiled: November 22, 1994Date of Patent: December 26, 1995Assignee: Goro Nickel S.A.Inventors: Karl A. Heck, Melissa A. Moore, Darrell F. Smith, Jr., Larry I. Stein, John S. Smith
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Patent number: 5476555Abstract: This invention relates to nickel-cobalt based alloys comprising the following elements in percent by weight: from about 0.002 to about 0.07 percent carbon, from about 0 to about 0.04 percent boron, from about 0 to about 2.5 percent columbium, from about 12 to about 19 percent chromium, from about 0 to about 6 percent molybdenum, from about 20 to about 35 percent cobalt, from about 0 to about 5 percent aluminum, from about 0 to about 5 percent titanium, from about 0 to about 6 percent tantalum, from about 0 to about 6 percent tungsten, from about 0 to about 2.5 percent vanadium, from about 0 to about 0.06 percent zirconium, and the balance nickel plus incidental impurities, the alloys having a phasial stability number N.sub.v3B less than about 2.60. Furthermore, the alloys have at least one element selected from the group consisting of aluminum, titanium, columbium, tantalum and vanadium. Also, the alloys have at least one element selected from the group consisting of tantalum and tungsten.Type: GrantFiled: March 2, 1993Date of Patent: December 19, 1995Assignee: SPS Technologies, Inc.Inventor: Gary L. Erickson
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Patent number: 5474737Abstract: An alloy comprising nickel, chromium, molybdenum, manganese, nitrogen and iron in amounts such that a weld metal formed therefrom is austenitic, wherein nitrogen is present in a concentration of from about 0.1 to about 0.2% of the alloy in weight percent. The weld metals prepared from the alloys of the present invention possess superior properties as compared to other stainless steels. These properties include inter alia a superior tearing modulus, fracture toughness, and yield strength, even at cryogenic temperatures.The present invention further provides a method for welding a metal part which is intended for exposure to cryogenic temperatures comprising welding the metal part using a welding electrode comprising nickel, chromium, molybdenum, manganese, nitrogen and iron in amounts such that a weld metal formed therefrom is austenitic, wherein nitrogen is present in the electrode in a concentration of from about 0.1 to about 0.2% of the electrode in weight percent.Type: GrantFiled: July 1, 1993Date of Patent: December 12, 1995Assignee: The United States of America as represented by the Secretary of CommerceInventors: Thomas A. Siewert, Christopher N. McCowan
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Patent number: 5470404Abstract: A rare earth metal-nickel hydrogen occlusive alloy ingot contains 90 vol % or more of crystals having a crystal grain size of 1 to 50 .mu.m as measured along a short axis of the crystal and 1 to 100 .mu.m as measured along a long axis of the crystal. A method for producing the rare earth metal-nickel hydrogen occlusive alloy ingot involves melting a rare earth metal-nickel alloy and uniformly solidifying the alloy melt to have a thickness of 0.1 to 20 mm under cooling conditions of a cooling rate of 10.degree. to 1000.degree. C./sec and a sub-cooling degree of 10.degree. to 500.degree. C.Type: GrantFiled: May 17, 1993Date of Patent: November 28, 1995Assignee: Santoku Metal Industry Co., Ltd.Inventors: Kazuhiko Yamamoto, Yuichi Miyake, Chikara Okada, Nobuyuki Kitazume
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Patent number: 5462437Abstract: A dental alloy is provided which is compatible with a wide variety of composites and porcelain compositions. The alloy has a melting range of between about 870.degree. C. and 1230.degree. C. and a coefficient of thermal expansion of between 15.5.times.10.sup.-6 and 17.5.times.10.sup.-6 in/in/.degree. C. when heated from room temperature to 500.degree. C. The alloy contains between one and 85 percent by weight gold, between two and 65 percent by weight of a thermal expansion adjuster, between 0.25 and 34 percent by weight of a strengthener and oxide former, up to about one percent by weight grain refiner, and up to about 0.25 percent by weight deoxidizer.Type: GrantFiled: November 10, 1993Date of Patent: October 31, 1995Assignee: Jeneric/Pentron IncorporatedInventors: Arun Prasad, Martin Schulman
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Patent number: 5451273Abstract: A cast alloy article suitable for improving the combustion characteristics and efficiency of a liquid fuel is disclosed. This cast alloy article is chiefly characterized by having coarse and irregular surface contour of interspersed peaks, valleys and pores that provide for increased surface area for increased fluid contact and provide for increased turbulence in fluid flow. The article has interspersed dendritic areas of solid dendrites and interdendritic areas of solid metal that also provide maximum surface area contact and turbulence of fluid flow of a fluid that is passed over the surface thereof. This article is made by heating selected quantities of selected metals including copper, zinc, nickel and tin to a temperature of above about 2000.degree. F. but not in excess of 2400.degree. F. intermixing the heated metals, pouring the heated metals into sand mold of a particular mesh to accomplish a coarse and irregular contour with pores and retaining the poured body at a temperature between about 2000.Type: GrantFiled: December 21, 1994Date of Patent: September 19, 1995Assignee: Hydro-Petro Technology, Inc.Inventors: Kathy D. Howard, Paul E. Howard
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Patent number: 5447683Abstract: Dense monolithic SiC or SiC ceramic composites are strongly bonded using brazing compositions which, in their preferred composition, include a braze alloy consisting essentially of less than 50 weight percent silicon and at least two metals from the group of Fe, Cr, Co and V and produce a joint suitable for use in a high neutron flux environment. Brazing is carried out at a temperature of about 1200.degree. to 1500.degree. C. in an inert atmosphere and is complete in about 15 minutes. Broadly, a genus of brazing compounds are disclosed which include between about 10 and about 45 weight percent silicon and at least two elements selected from the following group: Li, Be, B, Na, Mg, P, Sc, Ti, V, Cr, Mn, Fe, Co, Zn, Ga, Ge, As, Rb, Y, Sb, Te, Cs, Pr, Nd, Ta, W and Tl.Type: GrantFiled: November 8, 1993Date of Patent: September 5, 1995Assignee: General AtomicsInventors: Frederick C. Montgomery, Holger H. Streckert
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Patent number: 5441696Abstract: A copper-nickel based alloy, which comprises 3 to 25 wt % of Ni, 0.1 to 1.5 t % of Mn, 0.0001 to 0.01 wt % of B and the rest being Cu and an unavoidable element.Type: GrantFiled: June 26, 1992Date of Patent: August 15, 1995Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Kenji Kubosono, Iwao Asamizu, Masazumi Iwase, Toshihiro Kurita
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Patent number: 5431875Abstract: A precious metal alloy for dental restorations which develops a light oxide upon firing, on a percentage weight basis at makeup, consists of 60-95 precious metal(s) selected from the group consisting of 60-855 palladium, 0-10 gold, 0-10 platinum, 0-12 silver, and mixtures thereof; 1-15 tin; 2-7 zinc; 0.005-0.2 boron; 0-2 gallium; 0-2 cobalt; 0-15 indium; 0-0.2 of a deoxidant selected from the group consisting of silicon, germanium, magnesium, aluminum, lithium, tantalum and mixtures thereof; and 0-1.0 of a grain refiner selected from the group consisting of ruthenium, iridium, rhenium, and mixtures thereof. The alloy has a liquidus temperature of not more than 1400.degree. C., and the alloy has a tensile yield strength of at least 250 Mpa and an elongation of at least 2 percent. Restorations having a porcelain coating fired on castings of the alloy evidence a light oxide color.Type: GrantFiled: May 2, 1994Date of Patent: July 11, 1995Assignee: The J. M. Ney CompanyInventors: Thomas B. Cameron, Edward F. Smith, III
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Patent number: 5423680Abstract: A dental alloy is provided which is free of palladium, gallium and copper and which is compatible with a wide variety of composites and porcelain compositions. The alloy has a melting range of between about 870.degree. C. and 1230.degree. C. and a coefficient of thermal expansion of between 15.5.times.10.sup.-6 and 17.5.times.10.sup.-6 in/in/.degree. C. when heated from room temperature to 500.degree. C. The alloy contains between about 40 and 80 percent by weight gold, between 5 and 50 percent by weight of thermal expansion adjuster, between two and 15 percent by weight strengthener and oxide former, up to about 1.5 percent by weight grain refiner, and up to about 0.25 percent by weight deoxidizer.Type: GrantFiled: November 10, 1993Date of Patent: June 13, 1995Assignee: Jeneric/Pentron, IncorporatedInventor: Arun Prasad
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Patent number: 5409663Abstract: An indium-free, gold-colored, tarnish and corrosion-resistant alloy having no greater than 10% by weight gold and a color value, as measured according to the Cielab Color Measurement System, of approximately L=87.4, a=1.1, b=15.3. The alloy comprises 28-35% copper, 19.5-22.5% silver, 6-11% palladium, 22-32% zinc, 0.1-1% aluminum, and 0.5-3% platinum.Type: GrantFiled: May 3, 1994Date of Patent: April 25, 1995Inventors: Arthur D. Taylor, Norman J. LaMontagne, Jr., Malcolm Warren
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Patent number: 5393723Abstract: The catalyst is provided for improving the performance of hydrocarbon fuels used in internal combustion engines. The catalyst is a based metal alloy catalyst including tin, antimony, lead, mercury and thallium in the following proportions by weight percent:Sb 18-20Pb 4.5-5.5Hg 12-14Tl 0.1-0.5and the balance consisting essentially of Sn. The catalyst operates at ambient temperatures and atmospheric pressure. The catalyst is intended to pretreat fuel before combustion and may be disposed in the fuel tank, fuel line or return fuel line.Type: GrantFiled: May 11, 1993Date of Patent: February 28, 1995Inventor: Anthony W. Finkl
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Patent number: 5387294Abstract: A hard surfacing alloy which has a Rockwell C hardness of greater than about 50 and which includes tungsten carbide, chromium carbide and bi-metallic chromium and tungsten carbide crystals which are precipitated in the alloy. Alloys of the present invention in their nominal composition comprise from about 12% to about 20% tungsten; from about 13% to about 30% chromium; an effective amount of carbon for forming carbides with the tungsten and chromium and include effective amounts of fluxes and melting point depressants and the like. The balance of the composition is nickel. The alloys include precipitated carbide crystals of chromium, tungsten and bi-metallic mixtures thereof which are interspersed through the hard surfacing alloy and are metallurgically bonded in the metal matrix of the alloy. The alloys have extremely low porosities and therefore are suitable for glass plunger and other applications where low porosity is essential.Type: GrantFiled: May 19, 1992Date of Patent: February 7, 1995Assignee: Wall Comonoy CorporationInventor: Samuel C. DuBois
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Patent number: 5372662Abstract: A nickel-chromium-molybdenum-cobalt alloy has additions of tantalum and tungsten to provide superior stress rupture strength in the presence of grain size control agents, and has the following composition:______________________________________ Carbon 0.04-0.15 Iron 0-8 Chromium 18-25 Cobalt 10-15 Molybdenum 5-9 Aluminum 0.7-1.5 Tungsten 0-5 Titanium 0-0.5 Tantalum 0.7-2.5 Manganese 0-1 Silicon 0.05-0.75 Zirconium 0.01-0.05 Boron 0-0.Type: GrantFiled: July 9, 1993Date of Patent: December 13, 1994Assignee: Inco Alloys International, Inc.Inventors: Pasupathy Ganesan, Gaylord D. Smith
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Patent number: 5372661Abstract: A molybdneum, rhenium, and tungsten alloy having an improved erosion, ductility, strength and a higher recrystallization temperature. The alloy may be fabricated into equipment which is useful for manufacturing chemicals such as a hydrochlorofluorocarbon.Type: GrantFiled: July 6, 1993Date of Patent: December 13, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventors: Vinci M. Felix, Yong J. Park
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Patent number: 5372779Abstract: A white gold alloy composition consisting essentially of about 35 to 50 weight percent of gold, about 35 to 63 weight percent of silver, about 0.1 to 7 weight percent of a whitening component of zinc, germanium or both, and palladium in an amount of about 9 weight percent or less. The whitening component and the palladium are present in an amount sufficient to impart a white gold appearance and a liquidus temperature of no greater than about 1950.degree. F. to the alloy, preferably between about 1700.degree. and 1900.degree. F., and more preferably less than about 1850.degree. F. Thus, the preferred amount of palladium is about 2 to 5 weight percent and the preferred amount of the whitening component is about 0.5 to 6 weight percent.Type: GrantFiled: May 12, 1993Date of Patent: December 13, 1994Assignee: Handy & HarmanInventor: Aldo M. Reti
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Patent number: 5344507Abstract: An aluminum-alloy, which is wear-resistant and does not wear greatly the opposed cast iron or steel, and which can be warm worked. The alloyings the following composition and structure. Composition: Al.sub.a Si.sub.b M.sub.c X.sub.d T.sub.e (where M is at least one element selected from the group consisting of Fe, Co and. Ni; X is at least one element selected from the group consisting of Y, Ce, La and Mm (misch metal); Y is at least one element selected from the group consisting of Mn, Cr, V, Ti, Mo, Zr, W, Ta and Hf; a=50-85 atomic %, b=10-49 atomic %, c=0.5-10 atomic %, d=0.5-10 atomic %, e=0-10 atomic %, and a+b+c+d+e=100 atomic %. Structure: super-saturated face-centered cubic crystals and fine Si precipitates.Type: GrantFiled: March 16, 1992Date of Patent: September 6, 1994Assignees: Tsuyoshi Masumoto, Yoshida Kogyo KK, Teikoku Piston Ring Co., Ltd.Inventors: Tsuyoshi Masumoto, Akihisa Inoue, Kazuhiko Kita, Hitoshi Yamaguchi
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Patent number: 5338376Abstract: This invention relates to a Fe-Ni based high permeability amorphous alloy consisting of, in atom percent Ni 30-45%, Cr 0.5-1.2%, Si 5-14%, B 5-15%, P 1.0-3.0%, the balance Fe and inevitable impurities. The alloy is made by the rapid quenching melt method. It can be heat-treated in air and the excellent magnetic properties can be obtained as follows: B.sub.10 7900 Gs, B.sub.r 7500 Gs, H.sub.C 0.008 Oe, u.sub.m 68.times.10.sup.4. The present alloy is applied to make various magnetic devices which are used in electric apparatus and equipments.Type: GrantFiled: June 3, 1993Date of Patent: August 16, 1994Assignee: Central Iron and Steel Research InstituteInventors: Goudong Liu, Chuanli Zhang, Hongliang Ma, Shizhen Xu, Jingbei Li, Xuecai Li, Lidong Ding
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Patent number: 5330710Abstract: A nickel-base alloy for a glass-contacting member used in an unenergized state and having a composition comprising by weight 25 to 40% of chromium, 10 to 45% of cobalt, optionally 0.1 to 3.0% of titanium and optionally 0.01 to 0.05% of at least one element selected from among rare earth metals with the balance consisting of nickel and unavoidable impurities.Type: GrantFiled: March 6, 1992Date of Patent: July 19, 1994Assignee: Doryokuro Kakunenryo Kaihatsu JigyodanInventors: Toshio Masaki, Noriaki Sasaki, Shin-ichiro Torata, Hiroshi Igarashi, Tetsuya Shimizu, Tomohito Iikubo
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Patent number: 5330590Abstract: Cr.sub.3 Si is alloyed with molybdenum which produces a two-phase microstructure of (Cr,Mo).sub.3 Si and (Cr,Mo).sub.5 Si.sub.3. About 50 weight percent of molybdenum is present in the alloy. The alloy forms two protective oxides over a wide range of temperatures. Chromium and molybdenum oxide volatize under flowing air at high temperatures above 1200.degree. C. which facilitates the formation of SiO.sub.2 on the surface. Below 1200.degree. C. Cr.sub.2 O.sub.3 is formed. The new alloy has excellent high temperature strength and creep properties.Type: GrantFiled: May 26, 1993Date of Patent: July 19, 1994Assignee: The United States of America, as represented by the Administrator of the National Aeronautics & Space AdministrationInventor: Sai V. Raj
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Patent number: 5310522Abstract: Alloys are provided which consist essentially by weight percentages of from about 30% to about 35% Ni, from about 22% to about 25% Cr, from about 4% to about 6.5% Mo, from about 0.2% to about 1.5% W, from about 0.2% to about 0.6% Nb, from about 0.1% to about 0.6% Ti, from about 0.35% to about 1.75% Co, from about 0.05% to about 0.3% C, from about 0.2% to about 1.3% Si, from about 0.2% to about 1.5% Mn, and the balance essentially iron and the usual impurities.Type: GrantFiled: December 7, 1992Date of Patent: May 10, 1994Assignee: Carondelet Foundry CompanyInventor: John H. Culling
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Patent number: 5292382Abstract: An improved thermal sprayable molybdenum-iron alloy powder useful for forming wear and abrasion resistant coatings having high thermal conductivity and preferably good corrosion resistance. The preferred embodiment of the alloy powder includes two distinct substantially uniformly dispersed solid solution phases of molybdenum, including a first low molybdenum concentration matrix phase and a second higher molybdenum concentration phase for forming improved dual phase molybdenum coatings. The preferred alloy powder composition includes 15-60% by weight molybdenum, 20-60% by weight iron and the preferred corrosion resistant alloy includes 3-35% by weight nickel plus chromium. A more preferred composition includes by weight 25-50% molybdenum, 4-10% chromium, 10-18% nickel and 1-3% carbon, plus silicon as required to promote fluidity and atomization. The most preferred composition comprises by weight 25-40% molybdenum, 4 to 8% chromium, 12 to 18% nickel, 1-2.5% carbon, 2-3% silicon, 0.2-1% boron and 25-50% iron.Type: GrantFiled: September 5, 1991Date of Patent: March 8, 1994Assignee: Sulzer Plasma TechnikInventor: Frank N. Longo
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Patent number: 5290371Abstract: A noble metal dental casting alloy for use in making dental restorations comprises 35-70 percent by weight palladium, 25-50 percent by weight silver, 0.5-10 percent by weight manganese, and 1-30 percent of at least one modifier element selected from (i) the group of gold, platinum, copper, tin, gallium, zinc, indium and cobalt in amounts of up to 15 percent by weight each, and (ii) the group of ruthenium, rhenium, aluminum, germanium, lithium, silicon, iridium, boron, tantalum and niobium in amounts of up to 5 percent by weight each. The alloy has a solidus temperature of at least 1100.degree. C., a liquidus temperature of not more than 1400.degree. C., tensile elongation of at least 2 percent, thermal expansion coefficient of at least 14.0.times.10.sup.-6 per .degree.C., Vickers hardness of at least 150, and offset yield strength at 0.2 percent of at least 250 MPa.Type: GrantFiled: October 28, 1992Date of Patent: March 1, 1994Assignee: The J. M. Ney CompanyInventors: Thomas B. Cameron, Edward F. Smith, III
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Patent number: 5286314Abstract: A low melting (liquidus temperature <570.degree. C.) rapidly solidified brazing alloy consists essentially of about 14 to 52 weight percent germanium, 0 to 10 weight percent of at least one element selected from the group consisting of silicon, magnesium, bismuth, strontium, lithium, copper, calcium, zinc and tin, the balance being aluminum and incidental impurities. The alloy has the form of a foil and can be used to braze non-heat-treatable rapidly solidified Al-Fe-Si-V alloy foil, sheet plate and tubing to components such as deicing duct, overduct, radiator, heat exchanger, evaporator, honeycomb panel for elevated temperature applications.Type: GrantFiled: July 23, 1992Date of Patent: February 15, 1994Assignee: AlliedSignal Inc.Inventors: Santosh K. Das, Chin-Fong Chang
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Patent number: 5246511Abstract: A high-strength lead frame material consists, by weight, of 0.5 to 22% Co, 22 to 32.5% Ni, not more than 1.0% Mn, not more than 0.5% Si, at least one kind of 0.1 to 3.0% in total selected from the group consisting of Nb, Ti, Zr, Mo, V, W and Be, and the balance Fe and incidental impurities; the total content of Ni and Co being selected so that the content of Ni is in the range of 27 to 32.5% when the content of Co is less than 12% and so that 66%.ltoreq.2Ni+Co.ltoreq.74% is met when the content of Co is not less than 12%; the lead frame material having a duplex-phase structure composed of a reverse-transformed austenite phase (which can involve a residual austenite phase) and a martensite phase; and the austenite phase being not less than 50%.Type: GrantFiled: September 18, 1992Date of Patent: September 21, 1993Assignee: Hitachi Metals, Ltd.Inventors: Shuichi Nakamura, Hakaru Sasaki, Hironori Nakanishi, Tsutomu Inui
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Patent number: 5242511Abstract: A copper alloy composition comprising 100 parts by weight of powder of copper alloy represented by the general formula Ag.sub.x Cu.sub.y (wherein x and y are atomic ratio values; 0.001.ltoreq..times..ltoreq.0.999, 0.001.ltoreq.y.ltoreq.0.999, x+y=1), 5 to 200 parts by weight of one or more organic binders and 0.01 to 100 parts by weight of an additive capable of removing copper oxide; and a paste for screen printing, electromagnetic shielding, an electrically conductive additive, a paste for electrode and a paste for through hole, which are obtained by using said composition.Type: GrantFiled: October 18, 1991Date of Patent: September 7, 1993Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Akinori Yokoyama, Tsutomu Katsumata, Hitoshi Nakajima
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Patent number: 5192625Abstract: New cobalt-base wrought alloys containing 24-32% chromium, 14-22% nickel, 2-8% tantalum, 0.02-0.75% cerium and 0.03%-0.10% carbon have an unique combination of high temperature strength, hot corrosion resistance, oxidation-resistance and resistance to thermal fatigue cracking are useful in making weld repairs of cracked nozzles of gas turbine engines, as protective coatings for hot stage components of such engines and other similar purposes.Type: GrantFiled: February 28, 1990Date of Patent: March 9, 1993Assignee: General Electric CompanyInventor: Marvin Fishman
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Patent number: 5192377Abstract: In a process of producing strip or wire, which consists of a monotectic aluminum-silicon alloy comprising a matrix consisting of aluminum and an aluminum-silicon eutectic system and as a minority phase 1 to 50% by weight lead or bismuth included in said matrix, which strip or wire has been continuously cast at a high casting velocity and a high cooling rate from a molten material which has been heated to a temperature above the segregation temperature, and which strip or wire has been subjected to plastic deformation and to a heat treatment, the minority phase which is embedded in the form of elongate platelets in the strip or wire is transformed to more compact shapes by a heat treatment at temperatures of 550.degree. to 600.degree. C.Type: GrantFiled: April 22, 1991Date of Patent: March 9, 1993Assignee: Metallgesellschaft AktiengesellschaftInventors: Bruno Prinz, Alberto Romero, Ingrid Muller
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Patent number: 5188799Abstract: A wear-resistant copper-base alloy having superior self-lubricity includes, by weight %,Ni: 10.0 to 30.0%;Si: 0.5 to 3%;Co: 2.0 to 15.0%;at least one metal selected from the group consisting of Mo, W, Nb and V:2.0 to 15.0%; andthe balance being Cu and unavoidable impurities, and having a structure in which hard phase grains containing 5 vol% or more of silicide of at least one metal selected from the group consisting of Mo, W, Nb and V are uniformly dispersed in an amount of 10 to 60 vol% in a copper-rich matrix, to which 2.0 to 15.0% of Fe and/or 1.0 to 10.0% of Cr may be further added.Type: GrantFiled: March 19, 1992Date of Patent: February 23, 1993Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Kazuhiko Mori, Minoru Kawasaki, Shin Yoshida, Hiroyuki Murase, Takashi Saito, Kouji Tanaka, Yoshio Shimura
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Patent number: 5180446Abstract: Improvement of Nb-alloys, which are known as heat-resistant alloys, by giving anti-oxidation property thereto and increasing the high temperature strength thereof. In addition to a determined amount of Al, one of (1) suitable amounts of Ti, Cr and V, and (2) suitable amounts of Cr and Co, are added to Nb-matrix, and a high melting temperature metal oxide such as Y.sub.2 O.sub.3 or Al.sub.2 O.sub.3 is dispersed in the matrix. Preferable method of preparing the alloys is combination of mechanical alloying and subsequent hot processing.Type: GrantFiled: January 27, 1992Date of Patent: January 19, 1993Assignee: Daido Tokushuko Kabushiki KaishaInventors: Kenji Tsukuta, Tomohito Iikubo