Titanium Containing Patents (Class 420/438)
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Patent number: 12195828Abstract: The present invention relates to a Co-based alloy product including a polycrystal of a Co-based alloy, the Co-based alloy including: 0.001 mass %?C<0.100 mass %; 9.0 mass %?Cr<20.0 mass %; 2.0 mass %?Al<5.0 mass %; 13.0 mass %?W<20.0 mass %; and 39.0 mass %?Ni<55.0 mass %, with the balance being Co and unavoidable impurities, in which the Co-based alloy product comprises segregated cells formed inside a crystal grain of the polycrystal, the segregated cells have an average size of 1 ?m or larger and 100 ?m or smaller, and the segregated cells contain Al and Cr, and a method for producing the Co-based alloy product.Type: GrantFiled: September 27, 2022Date of Patent: January 14, 2025Assignee: DAIDO STEEL CO., LTD.Inventors: Shigenobu Eguchi, Shinya Imano, Atsuo Ota, Kenji Sugiyama, Yoshiki Kumagai
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Patent number: 11926886Abstract: A master alloy including an alloy composition including magnesium (Mg) at a concentration of greater than or equal to about 1.00 wt. % to less than or equal to about 90 wt. %, boron (B) at a concentration of greater than or equal to about 0.01 wt. % to less than or equal to about 20 wt. %, and aluminum (Al) at a concentration of greater than or equal to about 0.1 wt. % to less than or equal to about 90 wt. %, wherein the alloy composition includes MgB2 particles at a volume fraction greater than or equal to about 0.01% to less than or equal to about 20%.Type: GrantFiled: December 30, 2021Date of Patent: March 12, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Henry Zhan, Congjie Wang
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Patent number: 11795527Abstract: The present invention relates to an alloy for medical use, including Pt, Co, Cr, Ni, and Mo. The alloy includes 10 atom % or more and 30 atom % or less of Pt, 20 atom % or more and 31 atom % or less of Cr, 5 atom % or more and 24 atom % or less of Ni, 4 atom % or more and 8 atom % or less of Mo, the balance Co, and unavoidable impurities, and a ratio of the Ni content (CNi) to the Pt content (CPt), CNi/CPt is 1.5 or less. The present invention can be applied to various kinds of devices for medical use, such as catheter, embolic coils, and guide wires, in addition to stents such as flow-diverter stents.Type: GrantFiled: November 18, 2019Date of Patent: October 24, 2023Assignee: TANAKA KIKINZOKU KOGYO K.K.Inventors: Shubham Yadav, Yuya Kato, Kenji Goto, Kunihiro Shima
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Patent number: 9034247Abstract: A cobalt-nickel base alloy is disclosed. The alloy includes, in weight percent: greater than about 4 % of Al, about 10 to about 20 % of W, about 10 to about 40 % Ni, about 5 to 20 % Cr and the balance Co and incidental impurities. The alloy has a microstructure that is substantially free of a CoAl phase having a B2 crystal structure and configured to form a continuous, adherent aluminum oxide layer on an alloy surface upon exposure to a high-temperature oxidizing environment. A method of making an article of the alloy includes: selecting the alloy; forming an article from the alloy; solution-treating the alloy; and aging the alloy to form an alloy microstructure that is substantially free of a CoAl phase having a B2 crystal structure, wherein the alloy is configured to form a continuous, adherent aluminum oxide layer on an alloy surface upon exposure to a high-temperature oxidizing environment.Type: GrantFiled: June 9, 2011Date of Patent: May 19, 2015Assignee: General Electric CompanyInventors: Akane Suzuki, Andrew John Elliott, Michael Francis Xavier Gigliotti, Jr., Kathleen Blanche Morey, Jon Conrad Schaeffer, Pazhayannur Subramanian
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Publication number: 20140363698Abstract: A composition useful as a bond coat is provided. The composition includes about 3% to about 7% chromium, about 10% to about 30% nickel, about 12% to about 18% aluminum, about 0.0005% to about 0.15% yttrium, about 0.0% to about 16% strengtheners, balance cobalt, and incidental impurities. Also provided is a component including a substrate having at least one layer of the composition applied thereto.Type: ApplicationFiled: June 11, 2013Publication date: December 11, 2014Inventor: Kivilcim ONAL
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Publication number: 20140220384Abstract: Known protective layers having a high Cr-content and a silicone in addition, form brittle phases that embrittle further under the influence of carbon during use. The protective layer according to the invention is composed of 22% to 26% cobalt (Co), 10.5% to 12% aluminum (Al), 0.2% to 0.4% Yttrium (Y) and/or at least one equivalent metal from the group comprising Scandium and the rare earth elements, 15% to 16% chrome (Cr), optionally 0.3% to 1.5% tantal, the remainder nickel (Ni).Type: ApplicationFiled: August 3, 2012Publication date: August 7, 2014Applicant: SIEMENS AKTIENGESELLSCHAFTInventor: Werner Stamm
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Publication number: 20140220379Abstract: Known protective layers having a high Cr content and additionally a silicon form brittle phases which additionally become brittle under the influence of carbon during use. The protective layer hereof has a composition 22% to 24% cobalt (Co), 10.5% to 11.5% aluminum (AI), 0.2% to 0.4% yttrium (Y) and/or at least one equivalent metal from the group comprising scandium and the rare earth elements, 14% to 16% chrome (Cr), optionally 0.3% to 0.9% tantalum, the remainder nickel (Ni).Type: ApplicationFiled: June 22, 2012Publication date: August 7, 2014Applicant: SIEMENS AKTIENGESELLSCHAFTInventor: Werner Stamm
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Patent number: 8734716Abstract: Disclosed is a novel heat-resistant superalloy for turbine disks having a chemical composition consisting of, in mass %, 19.5-55% of cobalt, 2-25% of chromium, 0.2-7% of aluminum, 3-15% of titanium and the balance of nickel and inevitable impurities.Type: GrantFiled: March 11, 2011Date of Patent: May 27, 2014Assignee: National Institute for Materials ScienceInventors: Hiroshi Harada, Yuefeng Gu, Chuanyong Cui, Makoto Osawa, Akihiro Sato, Toshiharu Kobayashi
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Publication number: 20130243642Abstract: A metallic coating or alloy is provided, which is nickel based, and includes at least ? and ?? phases. The metallic coating or the alloy further includes tantalum (Ta) in the range of between 4 wt % to 7.5 wt %. The metallic coating or the alloy also includes cobalt (Co) in the range between 11 wt %-14.5 wt %.Type: ApplicationFiled: November 7, 2011Publication date: September 19, 2013Inventors: Anand A. Kulkarni, Jonathan E. Shipper, JR., Werner Stamm
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Publication number: 20120312426Abstract: A cobalt-nickel base alloy is disclosed. The alloy includes, in weight percent: greater than about 4% of Al, about 10 to about 20% of W, about 10 to about 40% Ni, about 5 to 20% Cr and the balance Co and incidental impurities. The alloy has a microstructure that is substantially free of a CoAl phase having a B2 crystal structure and configured to form a continuous, adherent aluminum oxide layer on an alloy surface upon exposure to a high-temperature oxidizing environment. A method of making an article of the alloy includes: selecting the alloy; forming an article from the alloy; solution-treating the alloy; and aging the alloy to form an alloy microstructure that is substantially free of a CoAl phase having a B2 crystal structure, wherein the alloy is configured to form a continuous, adherent aluminum oxide layer on an alloy surface upon exposure to a high-temperature oxidizing environment.Type: ApplicationFiled: June 9, 2011Publication date: December 13, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Akane Suzuki, Andrew John Elliott, Michael Francis Xavier Gigliotti, JR., Kathleen Blanche Morey, Jon Conrad Schaeffer, Pazhayannur Subramanian
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Publication number: 20120273153Abstract: A casting mold for a metal melt is provided. By coating a core of a casting mold, the core may be mechanically stabilized and an inner coating of the component to be cast may be obtained, wherein the coating preferably serves as an anti-corrosion layer. A method for producing a cast part using the casting mold is also provided.Type: ApplicationFiled: May 31, 2010Publication date: November 1, 2012Inventors: Fathi Ahmad, Winfried Esser, Uwe Paul
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Publication number: 20110194971Abstract: Disclosed is a novel heat-resistant superalloy for turbine disks having a chemical composition consisting of, in mass %, 19.5-55% of cobalt, 2-25% of chromium, 0.2-7% of aluminum, 3-15% of titanium and the balance of nickel and inevitable impurities.Type: ApplicationFiled: March 11, 2011Publication date: August 11, 2011Inventors: Hiroshi Harada, Yuefeng Gu, Chuanyong Cui, Makoto Osawa, Akihiro Sato, Toshiharu Kobayashi
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Publication number: 20110101619Abstract: A MCrAlY alloy, methods to produce a MCrAlY layer and a honeycomb seal are provided. The MCrAlY alloy includes chromium, aluminum, yttrium and iron and optionally titanium, hafnium or silicon. The honeycomb seal includes a substrate, honeycomb cells and a protective coating on side walls of the honeycomb cells or a diffusion area inside side walls of the honeycomb cells, the protective coating or the diffusion area including the MCrAlY alloy.Type: ApplicationFiled: January 23, 2009Publication date: May 5, 2011Inventors: David Fairbourn, Paul Mathew Walker
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Publication number: 20090159645Abstract: Various braze alloy compositions are described, along with methods for using them. In one instance, a boron-free, high-temperature braze alloy includes selected amounts of chromium, hafnium, and nickel. The braze alloy can be used, for example, as a component in a wide gap braze mixture where a higher or lower melting point superalloy and/or brazing powder is used. The braze alloys may permit joining or repairing of superalloy articles with complex shapes, and may be used in high temperature applications. In some other braze alloy embodiments, a nickel- or cobalt-based braze composition can contain selected amounts of boron, but includes restricted amounts of chromium.Type: ApplicationFiled: December 16, 2008Publication date: June 25, 2009Inventors: Laurent Cretegny, Ann Melinda Ritter, Shyh-Chin Huang, Liang Jiang, Warren Martin Andre Miglietti
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Publication number: 20080260570Abstract: Disclosed is a novel heat-resistant superalloy for turbine disks having a chemical composition consisting of, in mass %, 19.5-55% of cobalt, 2-25% of chromium, 0.2-7% of aluminum, 3-15% of titanium and the balance of nickel and inevitable impurities.Type: ApplicationFiled: December 2, 2005Publication date: October 23, 2008Inventors: Hiroshi Harada, Yuefeng Gu, Chuanyong Cui, Makoto Osawa, Akihiro Sato, Toshiharu Kobayashi
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Patent number: 6986951Abstract: The present invention relates to a cobalt-based alloy for the coating of organs subject to erosion by liquid comprising chromium 28–32% by weight, tungsten 6–8% by weight, silicon 0.1–2% by weight, carbon 1.2–1.7% by weight, nickel 3–6% by weight, molybdenum 1–3%, cobalt the complement to 100%. The invention also relates to an application method of the alloy on organs subject to erosion by liquid, in particular vapour turbine blades, to reduce the metal erosion rate following impact with liquids.Type: GrantFiled: September 25, 2003Date of Patent: January 17, 2006Assignee: Nuovo Pignone Holdings S.p.A.Inventor: Massimo Giannozzi
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Patent number: 6984458Abstract: The present invention relates to a method for treating organs subject to erosion by liquids, in particular vapour turbine components, which contemplates laser plating with a cobalt-based alloy comprising chromium from 28 to 32% by weight; tungsten from 5 to 7% by weight; silicon from 0.1 to 2% by weight; carbon from 1.2 to 1.7% by weight; nickel from 0.5 to 3% by weight; iron from 0.01 to 1% by weight; manganese from 0.01 to 1% by weight; molybdenum from 0.2 to 1% by weight; possible impurities or other elements from 0 to 0.5% by weight and cobalt the complement to 100%.Type: GrantFiled: October 31, 2003Date of Patent: January 10, 2006Assignee: Nuovo Pignone Holding S.p.A.Inventor: Massimo Giannozzi
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Patent number: 6852176Abstract: A Co-based alloy comprising 13-16 wt % Cr, 20-30 wt % Mo, 2.2-3.2 wt % Si, and balance Co, with a Cr:Si ratio of between about 4.5 and about 7.5, a Mo:Si ratio of between about 9 and about 15, wear resistance, and corrosion resistance in both oxidizing and reducing acids.Type: GrantFiled: June 12, 2003Date of Patent: February 8, 2005Assignee: Deloro Stellite Holdings CorporationInventors: James B. C. Wu, Matthew X. Yao
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Publication number: 20040170521Abstract: Protective coatings known in the state of art can reveal either good corrosion resistance or good mechanical properties.Type: ApplicationFiled: January 9, 2004Publication date: September 2, 2004Inventor: Werner Stamm
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Patent number: 6365285Abstract: An improved cobalt-base braze alloy composition is provided for use in repairing superalloy articles, such as gas turbine engines, power generation turbines, refinery equipment, and heat exchangers. The improved cobalt-base braze alloy composition includes nickel; at least one element selected from the group of rhenium, palladium, platinum, ruthenium, and iridium; at least one element selected from the group of boron and silicon; and the remaining balance consists of cobalt. This composition may also include aluminum and/or one or more rare earth/lanthanide series elements, and the composition may be combined with one or more powdered base metal superalloy compositions to form an improved diffusion braze alloy mixture. The compositions according to the present invention enable a repair composite formed of such compositions to at least equal the mechanical, environmental, and processing properties of the superalloy base metal being repaired.Type: GrantFiled: May 7, 1999Date of Patent: April 2, 2002Assignee: Rolls-Royce CorporationInventor: Richard Patrick Chesnes
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Patent number: 6195864Abstract: An improved cobalt-base braze alloy composition and method for diffusion brazing are provided for use in repairing superalloy articles, such as gas turbine engines, power generation turbines, refinery equipment, and heat exchangers. The improved cobalt-base braze alloy composition includes nickel; at least one element selected from the group of rhenium, palladium, platinum, ruthenium, and iridium; at least one element selected from the group of boron and silicon; and the remaining balance consists of cobalt. This composition may also include aluminum and/or one or more rare earth/lanthanide series elements, and the composition may be combined with one or more powdered base metal superalloy compositions to form an improved diffusion braze alloy mixture. In the improved method for repairing superalloy articles, the foregoing mixture is applied to a region of the superalloy article to be repaired.Type: GrantFiled: May 7, 1999Date of Patent: March 6, 2001Assignee: Allison Engine Company, Inc.Inventor: Richard Patrick Chesnes
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Patent number: 6077615Abstract: A Co-base alloy including, by weight, 0.03-0.10% C, not more than 1.0% Si, not more than 1.0% Mn, 20-30% Cr, 15-23% Ni, 3-10% W, 5-10% Ta and 0.05-0.7% Zr, is used as a welding material. A gas turbine nozzle has a crack repaired with a multi-layer weld using the Co-base alloy and a gas turbine for power generation employs the nozzle.Type: GrantFiled: December 16, 1997Date of Patent: June 20, 2000Assignee: Hitachi, Ltd.Inventors: Masami Yada, Takao Funamoto, Takamitsu Nakazaki, Kei Kobayashi, Norio Yokoba, Nobuyuki Iizuka, Kazuhiko Kumata
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Patent number: 6068814Abstract: This invention relates to a cobalt-based heat-resisting composition used as a spinner wheel material to prepare glassfiber and more particularly, to a cobalt-based heat-resisting alloy having excellent strength, anti-abrasiveness and antioxidative effects at a higher temperature.Type: GrantFiled: December 22, 1997Date of Patent: May 30, 2000Assignee: Keum Kang Co., Ltd.Inventors: Hwan Sub Kang, Kyeong Ji Park
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Patent number: 5939204Abstract: An article that is used to transport a hot oxidizing gas, in particular a flue gas in a gas turbine, has a surface acted upon by the gas. This surface is formed by an alloy which has 10 to 40 wt. % chrome, 1 to 20 wt. % gallium and optionally other specific elements in a base including at least one element from the group of iron, cobalt and nickel. In the alloy the gallium replaces aluminum and/or silicon. The alloy is deposited especially as a protective layer on a superalloy substrate and optionally coated with a gas-permeable ceramic layer.Type: GrantFiled: February 17, 1998Date of Patent: August 17, 1999Assignee: Siemens AktiengesellschaftInventor: Norbert Czech
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Patent number: 5916518Abstract: An improved cobalt-base braze alloy composition and method for diffusion brazing are provided for use in repairing superalloy articles, such as gas turbine engines, power generation turbines, refinery equipment, and heat exchangers. The improved cobalt-base braze alloy composition includes nickel; at least one element selected from the group of rhenium, palladium, and platinum; at least one element selected from the group of boron and silicon; and the remaining balance consists of cobalt. This composition may also include aluminum, and the composition may be combined with one or more powdered base metal superalloy compositions to form an improved diffusion braze alloy mixture. In the improved method for repairing superalloy articles, the foregoing mixture is applied to a region of the superalloy article to be repaired. The mixture is then heated to melt the cobalt-base braze alloy, thereby joining the base metal superalloy powder particles together, and joining the entire mixture to the region being repaired.Type: GrantFiled: April 8, 1997Date of Patent: June 29, 1999Assignee: Allison Engine CompanyInventor: Richard Patrick Chesnes
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Patent number: 5599385Abstract: A protective coating resistant to corrosion at medium and high temperatures is applied on a nickel-based or cobalt-based superalloy component. The protective coating essentially consists of the following elements (in percent by weight): 25 to 40% nickel, 28 to 32% chromium, 7 to 9% aluminum, 1 to 2% silicon, 0.3 to 1% of at least one reactive element of the rare earths, at least 5% cobalt; and impurities, as well as selectively from 0 to 15% of at least one of the elements of the group consisting of rhenium, platinum, palladium, zirconium, manganese, tungsten, titanium, molybdenum, niobium, iron, hafnium, and tantalum. The total share of the elements of the group is from 0 to a maximum of 15% and a remainder of at least 5% cobalt. The component and the coating applied thereon have a ductile brittle transition temperature below 500.degree. C.Type: GrantFiled: December 6, 1995Date of Patent: February 4, 1997Assignee: Siemens AktiengesellschaftInventors: Norbert Czech, Friedhelm Schmitz
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Patent number: 5582635Abstract: A protective coating resistant to corrosion at medium and high temperatures is applied on a nickel-based or cobalt-based superalloy component. The protective coating essentially consists of the following elements (in percent by weight): 25 to 40% nickel, 28 to 32% chromium, 7 to 9% aluminum, 1 to 2% silicon, 0.3 to 1% of at least one reactive element of the rare earths, at least 5% cobalt; and impurities, as well as selectively from 0 to 15% of at least one of the elements of the group consisting of rhenium, platinum, palladium, zirconium, manganese, tungsten, titanium, molybdenum, niobium, iron, hafnium, and tantalum. The total share of the elements of the group is from 0 to a maximum of 15% and a remainder of at least 5% cobalt. The component and the coating applied thereon have a ductile brittle transition temperature below 500.degree. C.Type: GrantFiled: March 28, 1995Date of Patent: December 10, 1996Assignee: Siemens AktiengesellschaftInventors: Norbert Czech, Friedhelm Schmitz
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Patent number: 5273712Abstract: A method of protecting and a protective coating for metal components formed of nickel or cobalt-based superalloys are disclosed. The protective coating essentially consists of the following constituents (in percent by weight):1 to 20% rhenium,15 to 50% chromium,0 to 15% aluminum, the share of chromium and aluminum taken together being at least 25% and at most 53%,0.3 to 2% in total of at least one reactive element from the group consisting of the rare earths, and0 to 3% silicon, impurities, as well as the following elective components:0 to 5% hafnium,0 to 12% tungsten,0 to 10% manganese,0 to 15% tantalum,0 to 5% titanium,0 to 4% niobium, and0 to 2% zirconium,the total share of the elective components being from 0 to a maximum of 15%, and a remainder primarily being at least one of the elements iron, nickel, and cobalt. The protective coating is primarily suited for use with metal components in gas turbines and aircraft engines.Type: GrantFiled: February 26, 1992Date of Patent: December 28, 1993Assignee: Siemens AktiengesellschaftInventors: Norbert Czech, Friedhelm Schmitz
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Patent number: 5154885Abstract: A protective coating for metal components formed of nickel or cobalt-based superalloys essentially consists of the following constituents (in percentages by weight):1 to 20% rhenium,22 to 50% chromium,0 to 15% aluminum, the share of chromium and aluminum taken together being at least 25% and at most 53%,0.3 to 2% in total of at least one reactive element from the group consisting of the rare earths, and0 to 3% silicon,impurities, as well as the following elective components:0 to 5% hafnium,0 to 12% tungsten,0 to 10% manganese,0 to 15% tantalum,0 to 5% titanium,0 to 4% niobium, and0 to 2% zirconium,the total share of the elective components being from 0 to a maximum of 15%, and a remainder primarily being at least one of the elements iron, nickel, and cobalt.Type: GrantFiled: August 10, 1990Date of Patent: October 13, 1992Assignee: Siemens AktiengesellschaftInventors: Norbert Czech, Friedhelm Schmitz
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Patent number: 5151137Abstract: A magnetic alloy with ultrafine crystal grains having a composition represented by the general formula:Co.sub.100.sub.-x-y-z-a-b Fe.sub.a M.sub.x B.sub.y X.sub.z T.sub.b (atomic %)wherein M represents at least one element selected from Ti, Zr, Hf, V, Nb, Mo, Ta, Cr, W and Mn, X represents at least one element selected from Si, Ge, P, Ga, Al and N, T represents at least one element selected from Cu, Ag, Au, platinum group elements, Ni, Sn, Be, Mg, Ca, Sr and Ba, 0<a.ltoreq.30, 2.ltoreq.x.ltoreq.15, 10.ltoreq.y.ltoreq.25, 0.ltoreq.z.ltoreq.10, 0<b.ltoreq.10, and 12<x+y+z+b.ltoreq.35. Such a magnetic alloy can be produced by producing an amorphous alloy having the above composition, and subjecting the resulting amorphous alloy to a heat treatment to cause crystallization, thereby providing the resulting alloy having a structure, at least 50% of which is occupied by crystal grains having an average grain size of 500 .ANG. or less.Type: GrantFiled: November 16, 1990Date of Patent: September 29, 1992Assignee: Hitachi Metals Ltd.Inventors: Yoshihito Yoshizawa, Yoshio Bizen, Kiyotaka Yamauchi, Toshikazu Nishiyama, Shigekazu Suwabe
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Patent number: 4938267Abstract: A series of glassy metal alloys with near zero magnetostriction and Perminvar characteristics of relatively constant permeability at low magnetic field excitations and constricted hysteresis loops is disclosed. The glassy alloys have the compositions Co.sub.a Fe.sub.b Ni.sub.c M.sub.d B.sub.e Si.sub.f where M is at least one member selected from the group consisting of Cr, Mo, Mn and Nb, and "a-f" are in atom percent where "a" ranges from about 66 to 71, "b" ranges from about 2.5 to 4.5, "c" ranges from about 0 to 3, "d" ranges from about 0 to 2 except when M.dbd.Mn in which case "d" ranges from about 0 to 4, "e" ranges from about 6 to 24 and "f" ranges from about 0 to 19, with the proviso that the sum of "a", "b" and "c" ranges from about 72 to 76 and the sum of "e" and "f" ranges from about 25 to 27. The glassy alloy has a value of magnetostriction ranging from about -1.times.10.sup. -6 to about +1.times.10.sup.-6, a saturation induction ranging from about 0.Type: GrantFiled: August 18, 1988Date of Patent: July 3, 1990Assignee: Allied-Signal Inc.Inventor: Ryusuke Hasegawa
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Patent number: 4837389Abstract: A dimensional composition, a dimensionally restored alloy structure and a method of dimensionally restoring gas turbine and the like components that will be subsequently coated which includes low-pressure plasma spraying onto a damaged vane or other components, an alloy composition consisting essentially by weight of 1 to 4% aluminum, 0 to 1.5% hafnium and 0 to 20% nickel in the base composition of the cobalt alloy component, grinding to final dimension and diffusion coating. Tantalum is substituted for columbium where the base composition of the alloy contains columbium.Type: GrantFiled: June 4, 1984Date of Patent: June 6, 1989Assignee: Turbine Components CorporationInventors: Srinivasan Shankar, George W. Goward
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Patent number: 4765955Abstract: The alloys according to the invention are the Co-base alloys which contain C, Si, Cr, W, Mo, Ti and Al, and further, as necessary, contain one, two or more elements among Mn, Ni, Fe, Nb and B, having high thermal shock resistance and lead oxide corrosion resistance. Furthermore the alloys can be used for build-up welding and casting, therefore they demonstrate excellent performance when used in the manufacture of engine valves and valves seats of high performance engines.Type: GrantFiled: September 2, 1986Date of Patent: August 23, 1988Assignee: Mitsubishi Kinzoku Kabushiki KaishaInventors: Ritsue Yabuki, Junya Ohe, Sadao Saitoh
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Patent number: 4761169Abstract: An alloy suitable for use as a spinner in forming glass fibers, the alloy being cobalt-based and including the following elements in percent by weight: chromium--about 34.0 to about 38.0; nickel--about 10.0 to about 15.0; wolfram--about 4.0 to about 7.0; tantalum--about 2.0 to about 5.0; zirconium--about 0.1 to about 0.4: silicon--present but about 0.15 max; carbon--about 0.65 to about 0.95; boron--about 0.005 to about 0.02; hafnium--about 0.4 to about 1.0; aluminum--0.0 to about 0.2; titanium--0.0 to about 0.2; manganese--0.0 to about 0.5; molybdenum--0.0 toabout 0.1; iron--0.0 to about 2.0; and cobalt--balance; and further that: ##EQU1## said percents of the elements in equation Nos. 1 and 2 each being atom percent.Type: GrantFiled: October 3, 1986Date of Patent: August 2, 1988Assignee: Owens-Corning Fiberglas CorporationInventor: David J. Gaul
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Patent number: 4728495Abstract: The invention relates to removable dental appliances made of cobalt-chromium-cast alloys containing (in % by weight) 0,1 to 1,0% C, 0,05 to 0,5% N, 0,5 to 3,0% Si, 0,3 to 10,0% Mn, 20 to 35% Cr, 2 to 10% Mo, 5 to 40% Fe, at least 20% Cobalt as rest including incidental impurities.Type: GrantFiled: March 20, 1986Date of Patent: March 1, 1988Assignee: Thyssen Edelstahlwerke AGInventor: Leo Rademacher
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Patent number: 4631082Abstract: An oxide dispersion strengthened cobalt-chromium superalloy produced by mechanical alloying containing a refractory oxide, preferably yttrium oxide, and characterized by excellent corrosion resistance, high fatigue strength and high temperature stability; and prostheses formed from said superalloy.Type: GrantFiled: February 20, 1985Date of Patent: December 23, 1986Assignee: Pfizer Hospital Products Group Inc.Inventors: Henry L. Andrews, Gregory E. Gardiner
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Patent number: 4615864Abstract: Coatings for iron-, nickel- and cobalt-base superalloys. The coatings are applied in order to provide good oxidation and/or sulfidation and thermal fatigue resistance for the substrates to which the coatings are applied. The coatings consist essentially of, by weight, 10 to 50% chromium, 3 to 15% aluminum, 0.1 to 10% manganese, up to 8% tantalum, up to 5% tungsten, up to 5% reactive metal from the group consisting of lanthanum, yttrium and other rare earth elements, up to 5 percent of rare earth and/or refractory metal oxide particles, up to 12% silicon, up to 10% hafnium, and the balance selected from the group consisting of nickel, cobalt and iron, and combinations thereof. Additions of titanium up to 5% and noble metals up to 15% are also contemplated.Type: GrantFiled: April 23, 1982Date of Patent: October 7, 1986Assignee: Howmet Turbine Components CorporationInventors: Louis E. Dardi, Srinivasan Shankar
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Patent number: 4606887Abstract: As replacements for noble metal containing alloys fused to porcelain in dental prosthetics there are needed alloys based on cobalt-chromium-tungsten which have a hardness of less than 300 (HV 5), can be veneered faced with known dental ceramics without problems and can be worked without problem with the customary working techniques. Such alloys contain in addition to 42-69.5 weight % cobalt, 10-35 weight % chromium, and 5-25 weight % tungsten, 2-10 weight % iron, 1-4 weight % aluminum, 0-5 weight % rhenium, and 0-2 weight % titanium, whereby the sum of the content oc chromium, tungsten, and rhenium is between 27.5 and 45 weight % and the sum of aluminum and titanium is below 5 weight %.Type: GrantFiled: May 25, 1984Date of Patent: August 19, 1986Assignee: Degussa AktiengesellschaftInventors: Jurgen Hausselt, Dieter Kaufmann, Udo Englisch
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Patent number: 4530885Abstract: An alloy having the nominal composition Ni--30/40 wt % Cr--1/5 wt % Ti--2/8 wt % Al is used for coating gas turbine components to give protection against oxidation--and sulphidation--corrosion. A specific alloy having the composition Ni--37 Cr--3 Ti--2Al is applied to a blade fabricated from a nickel superalloy by sputter ion plating to give an overlay coating up to 100 .mu.m thick. Preferably a platinum intermediate layer is flashed on to the substrate before coating. The coating alloy can additionally include rare earths, hafnium or silicon.Type: GrantFiled: April 12, 1982Date of Patent: July 23, 1985Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventor: James E. Restall