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| Number | Title | Issue Date |
| 7165325 | Welding material, gas turbine blade or nozzle and a method of repairing a gas turbine blade or nozzle A welding material composition, which is a nickel based super alloy having γ′ phase and chromium carbides precipitated. The composition comprising 18 to 25% by weight of Co, 15 to 20% by weight of Cr, 1.5 to 5.5% by weight of Al, 5 to 14% by weight of W, 0.05 to ... | 01/23/2007 |
| 7052782 | High-temperature protection layer A high-temperature protection layer contains (% by weight) 23 to 27% Cr, 4 to 7% Al, 0.1 to 3% Si, 0.1 to 3% Ta, 0.2 to 2% Y, 0.001 to 0.01% B, 0.001 to 0.01% Mg and 0.001 to 0.01% Ca, remainder Ni and inevitable impurities. Optionally, the Al content is in a range ... | 05/30/2006 |
| 7014723 | Nickel-base alloy Castable and weldable nickel-base alloys that exhibit a desirable balance of strength and resistance to corrosion and oxidation suitable for gas turbine engine applications. The alloy contains, by weight, about 10% to about 25% cobalt, about 20% to about 28% chromiu... | 03/21/2006 |
| 6974508 | Nickel base superalloy turbine disk A low solvus, high refractory alloy having unusually versatile processing mechanical property capabilities for advanced disks and rotors in gas turbine engines. The nickel base superalloy has a composition consisting essentially of, in weight percent, 3.0–4.0 Al, ... | 12/13/2005 |
| 6919042 | Oxidation and fatigue resistant metallic coating The present invention relates to a metallic coating to be deposited on gas turbine engine components. The metallic coating comprises up to 18 wt % cobalt, 3.0 to 18 wt % chromium, 5.0 to 15 wt % aluminum, 0.1 to 1.0 wt % yttrium, up to 0.6 wt % hafnium, up to 0.3 wt... | 07/19/2005 |
| 6860948 | Age-hardenable, corrosion resistant Ni—Cr—Mo alloys A nickel-chromium-molybdenum alloy capable of being age hardened for improved strength while maintaining high corrosion resistance contains in weight percent 19.5 to 22 chromium, 15 to 17.5 molybdenum, up to 3 iron, up to 1.5 manganese, up to 0.5 aluminum, up to 0.0... | 03/01/2005 |
| 6818077 | High-strength Ni-base superalloy and gas turbine blades A nickel-based superalloy containing 12.0 to 16.0% by weight of Cr, 4.0 to 9.0% by weight of Co, 3.4 to 4.6% by weight of Al, 0.5 to 1.6% by weight of Nb, 0.05 to 0.16% by weight of C, 0.005 to 0.025% by weight of B, and at least one of Ti, Ta and Mo. Amounts of Ti,... | 11/16/2004 |
| 6797232 | Nickel-based alloy for high-temperature technology Creep-proof and corrosion-resistant nickel-based alloy for the use in high-temperature technology, comprising in wt-%: 0.0015 to 0.60 carbon (C); 0.20 to 0.90 nitrogen (N); 22.0 to 32.0 chromium (Cr); 5.0 to 20.0 elements of group 4, 5, a... | 09/28/2004 |
| 6756131 | High temperature corrosion resistant alloy, thermal barrier coating material, and gas turbine using high temperature corrosion resistant alloy A high temperature corrosion resistant alloy composition comprising, in addition to Ni, 0.1 to 12% by weight of Co, 10 to 30% by weight of Cr, 4 to 15% by weight of Al, 0.1 to 5% by weight of Y, and 0.5 to 10% by weight of Re. The high temperature corrosion resistan... | 06/29/2004 |
| 6740177 | Nickel-base alloy A castable and weldable nickel-base alloy that exhibits a desirable balance of strength and resistance to corrosion and oxidation suitable for gas turbine engine applications. A suitable composition for the alloy consists essentially of, by weight, 10% to 25% cobalt... | 05/25/2004 |
| 6702906 | Ni-base heat resistant alloy and welded joint thereof A Ni-base heat resistant alloy excellent in weldability and strength at elevated temperatures and suited for use in manufacturing cracking furnace tubes and reformer furnace tubes to be used in ethylene plants as well as a welded joint therefor is provide... | 03/09/2004 |
| 6696176 | Superalloy material with improved weldability A fusion weldable superalloy containing 0.005-0.5 wt. % scandium. In one embodiment, the superalloy may have a composition similar to IN-939 alloy, but having added scandium and having only 0.005-0.040 wt. % zirconium. A gas turbine component may be forme... | 02/24/2004 |
| 6544668 | Ductile filler metal alloys for welding nickel aluminide alloys Nickel aluminum alloys are welded utilizing a nickel based alloy containing zirconium but substantially free of titanium and niobium which reduces the tendency to crack.... | 04/08/2003 |
| 6475642 | Oxidation-resistant coatings, and related articles and processes An oxidation-resistant coating is described, formed of an alloy containing: about 40 to about 50 atom % aluminum and about 0.5 atom % to about 3 atom % tantalum; with a balance of nickel; cobalt, iron, or combinations thereof. The coating may also include... | 11/05/2002 |
| 6458318 | Heat resistant nickel base alloy A heat resistant Ni base alloy comprises, on a mass% basis, 0.1% or less C, 2% or less Si, 2% or less Mn, 0.005% or less S, 10 to 25% Cr, 2.1 to less than 4.5% Al, 0.08% or less N, 0.001 to 1% in total of one or more elements of B: 0.03% or less, Zr: 0.2%... | 10/01/2002 |
| 6284392 | Superalloys with improved weldability for high temperature applications A cast nickel-base superalloy component (10) is made having a composition containing small amounts of both boron and zirconium which are effective in combination to provide increased weldability, where such alloy is adapted for welding by weld (18) to a s... | 09/04/2001 |
| 6242113 | Welding alloy and articles for use in welding, weldments and methods for producing weldments A nickel, chromium, iron alloy for use in producing weld deposits. The alloy comprises, in weight percent, about 27 to 31.5 chromium; about 7 to 11 iron; about 0.005 to 0.05 carbon; less than about 1.0 manganese, preferably 0.30 to 0.95 manganese; about 0... | 06/05/2001 |
| 6210635 | Repair material A composition comprises cobalt; chromium; carbon; boron; zirconium; aluminum; at least one refractory material; and nickel. The composition is used as a repair material for repairing superalloy articles in a repair process.... | 04/03/2001 |
| 6132535 | Process for the heat treatment of a Ni-base heat-resisting alloy Provided is a process for improving alloy properties which can improve the high-temperature ductility of a Ni-base heat-resisting alloy while maintaining its excellent high-temperature strength and weldability. Specifically, it relates to a process for th... | 10/17/2000 |
| 6054096 | Stable heat treatable nickel superalloy single crystal articles and compositions Improved compositions for fabricating nickel superalloy single crystal articles are described. The compositions are characterized by the substantial absence of carbon, boron, zirconium and vanadium and intentional additions of cobalt. The cobalt additions... | 04/25/2000 |
| 5997809 | Alloys for high temperature service in aggressive environments An alloy resistant to carburization and high temperature oxidation. The alloy consists essentially of, by weight percent, 27 to 35 chromium, 0 to 7 iron, about 3 to 4.4 aluminum, 0 to 0.4 titanium, 0.2 to 3 niobium, 0.12 to 0.5 carbon, 0 to 0.05 zirconium... | 12/07/1999 |
| 5964966 | Method of forming biaxially textured alloy substrates and devices thereon Specific alloys, in particular Ni-based alloys, that can be biaxially textured, with a well-developed, single component texture are disclosed. These alloys have a significantly reduced Curie point, which is very desirable from the point of view of superco... | 10/12/1999 |
| 5939204 | Article for transporting a hot, oxidizing gas 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 specif... | 08/17/1999 |
| 5730792 | Opaque ceramic coatings Thick opaque ceramic coatings are used to protect delicate microelectronic devices against excited energy sources, radiation, light, abrasion, and wet etching techniques. The thick opaque ceramic coating are prepared from a mixture containing tungsten car... | 03/24/1998 |
| 5728279 | Cobalt base alloy target for a magnetron cathode sputtering system Target for a magnetron-cathode sputtering apparatus is made from a cobalt base alloy containing additional elements in such concentrations that intermetallic phases are formed with at least one of these elements and intermetallic phases are observed on th... | 03/17/1998 |
| 5599385 | High temperature-resistant corrosion protection coating for a component, in particular a gas turbine component 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, ... | 02/04/1997 |
| 5582635 | High temperature-resistant corrosion protection coating for a component in particular a gas turbine component 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, ... | 12/10/1996 |
| 5543109 | Heat resistant high chromium austenitic alloy excellent in strength at elevated temperatures 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.... | 08/06/1996 |
| 5425912 | Low expansion superalloy with improved toughness A high strength, low coefficient of thermal expansion superalloy exhibiting improved toughness over a broad temperature range down to about 4° K. The composition is adapted for use with wrought superconducting sheathing.... | 06/20/1995 |
| 5403547 | Oxidation resistant low expansion superalloys An oxidation resistant alloy containing iron, cobalt, nickel and at least 4 to 5% by weight aluminum having at least a duplex crystalline structure. One crystalline component of this structure is a gamma (fcc) phase having a gamma prime phase dispersed th... | 04/04/1995 |
| 5374319 | Welding high-strength nickel base superalloys A process is provided for welding a gamma-prime precipitation-strengthened nickel base superalloy by heating the weld area and adjacent region to a ductile temperature, welding while maintaining the entire weld area and adjacent region at the ductile temp... | 12/20/1994 |
| 5364587 | Nickel alloy for hydrogen battery electrodes Master alloys and methods of producing same are disclosed, wherein an intermetallic compound is first prepared via thermite processing, then size reduced, then mixed with other components in amounts yielding a mixture in the desired proportion for the mas... | 11/15/1994 |
| 5294239 | Nickel-base superalloy In section bars and shaped bodies made of nickel-base superalloys having a structure consisting of columnar grains, a complete recrystallization cannot be effected unless the heating-up rate is kept below a maximum heating-up rate Tmax, which d... | 03/15/1994 |
| 5122206 | Precipitation hardening nickel base single crystal cast alloy A precipitation strengthening type nickel base single crystal alloy, which consists essentially of, on a weight percent basis, 10-30% chromium, 0.1-5% niobium, 0.1-8% titanium, 0.1-8% aluminum, optionally one or more components selected from the group consisting of... | 06/16/1992 |
| 5077004 | Single crystal nickel-base superalloy for turbine components A single crystal nickel-base superalloy is disclosed having an improved incipient melting temperature and oxidation resistance. The single crystal nickel-base alloy of this invention is characterized by specific addition of chromium, tungsten, aluminum an... | 12/31/1991 |
| 5068084 | Columnar grain superalloy articles An article exhibiting superior mechical properties and resistance to oxidation corrosion at elevated temperatures as described. The article has particular utility in gas turbine engines and is comprised of a nickel base superalloy consisting essentially o... | 11/26/1991 |
| 5019331 | Heat-resistant alloy A heat-resistant alloy comprising, in % by weight, 0.3-0.8% of C, 0.5-3% of Si, over 0% to not greater than 2% of Mn, at least 23% to less than 30% of Cr, 40-55% of Ni, 0.2-1.8% of Nb, over 0.08% to not greater than 0.2% of N, 0.01-0.5% of Ti and/or 0.01-... | 05/28/1991 |
| 5006163 | Turbine blade superalloy II A novel, nickel-base, high temperature alloy body preferably containing about 20% chromium, 6 to 7% aluminum to provide phase, 1.5 to 2.5% molybdenum, 3 to 4.5% tungsten, additional strengthening elements and oxidic yttrium in finely dispersed form. The a... | 04/09/1991 |
| 4981644 | Nickel-base superalloy systems Alloy compositions for nickel-base superalloys having the qualities of weldability, castability and forge-ability together with improved high temperature strength and rupture properties are disclosed. The weldability is improved by varying the Al, Ti, Nb ... | 01/01/1991 |
| 4981528 | Hot isostatic pressing of single crystal superalloy articles A method for the densification of a shaped nickel base single crystal alloy article utilizing a pre-HIP, an improved hot isostatic pressing (HIP) step, and post-HIP solution heat treatment to enhance removal of casting porosity in a finished article.... | 01/01/1991 |
