| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 148675000 | Nickel(Ni) or nickel base alloy | 28 |
| 20080245449 | Hardening of Metal Alloys - A method of rendering an alloy with increased hardness is provided, the method including the steps of heat treating the alloy until the formation of at least one ordered region in the alloy. An alloy prepared according to this method and an item of jewelry fashioned from or including such an alloy are also provided. | 10-09-2008 |
| 20090071580 | Method of heat treating a superalloy component and an alloy component - A method of heat treating a superalloy component comprises solution heat treating the component at a temperature below the gamma prime solvus temperature to produce a fine grain structure in the component. Insulation is placed over a first area of the component to form an insulated assembly. The insulated assembly is placed in a furnace at a temperature below the solvus temperature and maintained at that temperature for a predetermined time to achieve a uniform temperature in the component. The temperature is increased at a predetermined rate to a temperature above the solvus temperature to maintain a fine grain structure in a first region, to produce a coarse grain structure in a second region and to produce a transitional structure in a third region between the first and second regions of the component. The insulated assembly is removed from the furnace when the second region of the component has been above the solvus temperature for a predetermined time and/or the first region of the component has reached a predetermined temperature. | 03-19-2009 |
| 20090107592 | Heat treatment of alloys having elements for improving grain boundary strength - Heat treatment of alloys having elements for improving grain boundary strength | 04-30-2009 |
| 20090120543 | Ni3A1-Based Intermetallic Compound With Dual Multi-Phase Microstructre, Production Method Thereof, and Heat Resistant Structural Material | 05-14-2009 |
| 20090308507 | Ni-BASED COMPOUND SUPERALLOY HAVING EXCELLENT OXIDATION RESISTANCE, METHOD FOR MANUFACTURING THE SAME, AND HEAT-RESISTANT STRUCTURAL MATERIAL - The present invention is characterized in including Al: more than 5 at % to 13 at % or less; V: 3 at % or more to 9.5 at % or less; and Ti: 0 at % or more to 3.5 at % or less, with the remainder being Ni and unavoidable impurities, and having a multi-phase microstructure including a primary L1 | 12-17-2009 |
| 20090308508 | Heat Treatment Method of a Ni-Based Superalloy for Wave-Type Grain Boundary and a Ni-Based Superalloy Produced Accordingly - The present invention suggests a method of heat treatment of a Ni-based superalloy that improves resistance against creep, fatigue and stress corrosion cracking while being economical and easy, and a Ni-based superalloy produced by using the same. The method and the superalloy of the present invention include solution treatment at the high temperature region during a heat treatment process after manufacturing or final cold working fabrication. Immediately following the solution treatment, the material is slowly cooled at 1˜15° C./minute down to the intermediate temperature region for aging treatment. After the slow cooling stage, aging treatment is directly performed by holding it at the intermediate temperature region for the prescribed time. Lastly, the aging treatment is followed by air-cooling stage. | 12-17-2009 |
| 20100012235 | Pt METAL MODIFIED y-Ni + y'-Ni3Al ALLOY COMPOSITIONS FOR HIGH TEMPERATURE DEGRADATION RESISTANT STRUCTURAL ALLOYS - An alloy comprising 5 at % ≦Al<16 at %, about 0.05 at % to 1 at % of a reactive element selected from the group consisting of Hf, Y, La, Ce, Zr, and combinations thereof, and Ni, wherein the alloy composition has a predominately γ-Ni+γ′-Ni | 01-21-2010 |
| 20100116383 | METHOD OF HEAT TREATMENT FOR DESENSITIZING A NIKEL-BASED ALLOY RELATIVE TO ENVIRONMENTALLY-ASSISTED CRAKING, IN PARTICULAR FOR A NUCLEAR FOR A NUCLEAR REACTOR FUEL ASSEMBLY AND FOR A NUCLEAR REACTOR, AND A PART MADE OF THE ALLOY AND SUBJECTED TO THE TREATMENT - A heat treatment method for desensitizing a nickel-based alloy with respect to environmentally-assisted cracking, the alloy having the following composition in percentages by weight: C≦0.10%; Mn≦0.5%; Si≦0.5%; P≦0.015%; S≦0.015%; Ni≧40%; Cr=12%-40%; Co≦10%; Al≦5%; Mo=0.1%-15%; Ti≦5%; B≦0.01%; Cu≦5%; W=0.1%-15%; Nb=0-10%; Ta≦10%; the balance being Fe, and inevitable impurities that result from processing, characterized in that the alloy is held at 950° C.-1160° C. in an atmosphere of pure hydrogen or containing at least 100 ppm of hydrogen mixed with an inert gas. A part made of a nickel-based alloy having the composition and that has been subjected to the heat treatment. | 05-13-2010 |
| 20100163142 | OSCILLATING HEAT TREATMENT METHOD FOR A SUPERALLOY - Superalloy solidified in a directional manner often cannot be subjected to heat treatment because the heat treatment leads to recrystallization. As a result of the temperature profile during a heat treatment according to the invention which oscillates in the manner of a pendulum, a recrystallization during heat treatment can be avoided because mechanical stresses are reduced thanks to the recurring succession of dissolutions and precipitations of the precipitate. The method can be applied to a Ni-based superalloy with γ-precipitates. After the cyclic heat treatment, the temperature can be adjusted to and maintained at a temperature which is the same as or higher than the complete dissolution temperature. An oscillating movement can also take place above the complete dissolution temperature. | 07-01-2010 |
| 20100243111 | NI-BASE ALLOY AND METHOD OF PRODUCING THE SAME - Disclosed are a high-strength Ni-base alloy, a method of producing the Ni-base alloy, and a method of recovering a member made of a degraded Ni-base alloy. It contains not more than 0.1 wt % C, not more than 50 wt % Fe, not more than 30 wt % Cr, Ti, and at least one of Nb and Al. It has been strengthened by precipitates of a γ′ phase (Ni | 09-30-2010 |
| 20110272070 | NICKEL-CHROMIUM-ALLOY - A nickel chromium alloy with 0.4 to 0.6% carbon, 28 to 33% chromium, 15 to 25% iron, 2 to 6% aluminum, up to 2% silicon, up to 2% manganese, up to 1.5% niobium, up to 1.5% tantalum, up to 1.0% tungsten, up to 1.0% titanium, up to 1.0% zirconium, up to 0.5% yttrium, up to 1.0% cerium, up to 0.5% molybdenum, up to 0.1% nitrogen, remainder nickel, has a high oxidation and carburization stability, long-term rupture strength and creep resistance. This alloy is particularly suited as a material for components of petrochemical plants and for parts, for example tube coils of cracker and reformer furnaces, pre-heaters, and reformer tubes, as well as for use for parts of iron ore direct reduction plants. | 11-10-2011 |
| 20110308674 | METHOD, ALLOY AND COMPONENT - A method for heat treating a nickel base alloy includes the steps of: a. heating a nickel base alloy to at least its delta (δ) phase solvus temperature, and lower than its incipient melting temperature for a predetermined time sufficient to dissolve,substantially all of the nickel base alloy's delta (δ) phase, and b. cooling the nickel base alloy to a temperature below the gamma prime (ν) precipitation temperature at a rate sufficient to precipitate the alloy's chromium carbide and gamma prime (ν) in a serrated grain boundary. | 12-22-2011 |
| 20120012234 | Age-Hardening Process Featuring Anomalous Aging Time - This document describes a process/strategy for age hardening nickel based alloys to create desirable properties with reduced energy expenditure. The inventive process introduces isolated atom nucleation sites to accelerate the nucleation rate by approximately 36 times, thereby permitting age hardening to occur in significantly less time and with significantly less energy expenditure. | 01-19-2012 |
| 20120118445 | Dental and Medical Instruments Comprising Titanium - Endodontic instruments for use in performing root canal therapy on a tooth are disclosed. In one form, the instruments include an elongate shank having a cutting edge extending from a distal end of the shank along an axial length of the shank. The shank comprises a titanium alloy, and the shank is prepared by heat-treating the shank at a temperature above 25° C. in an atmosphere consisting essentially of a gas unreactive with the shank. In another form, the endodontic instruments have an elongate shank having a cutting edge extending from a distal end of the shank along an axial length of the shank. The shank consists essentially of a titanium alloy selected from alpha-titanium alloys, beta-titanium alloys, and alpha-beta-titanium alloys. The instruments solve the problems encountered when cleaning and enlarging a curved root canal. | 05-17-2012 |
| 20140238559 | PRE-WELD HEAT TREATMENT FOR A NICKEL BASED SUPERALLOY - A pre-weld heat treatment of the nickel based superalloy including heating a nickel based superalloy (e.g., IN939) casting to 2120° F. at a rate of 2° F. per minute, and then soaking the casing for one hour at 2120° F. The casting is then cooled in stages including slowly cooling the casting at a rate of 1° F. per minute to about 1900° F. and holding at that temperature for about 10 minutes. Then the casting is further slowly cooled at a rate of 1° F. per minute to about 1800° F. and holding at that temperature for about 10 minutes, and further slowly cooled to a temperature range of 1650° F. to 1450° F., and then fast cooled to room temperature. The pre-weld heat treatment may optionally include a step of heating the casting to about 1850° F. at a rate of 50° F. per minute before slowly heating to 2120° F. | 08-28-2014 |
| 20140352853 | Age-Hardening Process Featuring Anomalous Aging Time - This document describes a process/strategy for age hardening nickel based alloys to create desirable properties with reduced energy expenditure. The inventive process introduces isolated atom nucleation sites to accelerate the nucleation rate by approximately 36 times, thereby permitting age hardening to occur in significantly less time and with significantly less energy expenditure. | 12-04-2014 |
| 20160145730 | PRODUCTION METHOD FOR ALLOY 690 ORDERED ALLOY OF IMPROVED THERMAL CONDUCTIVITY, AND ALLOY 690 ORDERED ALLOY PRODUCED THEREBY - The present invention relates to ordered Alloy 690 with improved thermal conductivity. By maintaining Alloy 690 in a temperature range of 350-570° C. for a proper amount of time, the atomic arrangement is controlled to properly form the ordered phases. The ordered phases formed in the ordered Alloy 690 increases its thermal conductivity due to a low thermal scattering effect of the ordered phase as observed in pure metals. | 05-26-2016 |
| 148676000 | With working | 11 |
| 20090008000 | Method for the Production and Use of Semi-Finished Products on the Basis of Nickel, Having a Recrystallization Cube Texture - The invention relates to a method for producing and using a nickel-based semi-finished product embodied in the form of a strip or flat wire. The aim of the invention is to develop a method for producing a nickel-based semi-finished product which exhibits improved performance characteristics for the use in the form of a base for physical-chemical coatings provided with a high-quality intense microstructural orientation. The semi-finished product should have an improved granular structure provided with a stable cube texture. For this purpose, the inventive method consists in producing an initial semi-finished product by means of a fusion or powder metallurgy process including mechanical alloys, wherein the semi-finished product comprises a technically pure Ni or the alloy thereof containing an Ag additive in a microalloy range which is equal to or greater than 10 atom ppm and is equal to or less than 1000 atom ppm, in shaping the initial semi-finished product in the form of a strip or flat wire by hot- and cold forming processes with a thickness reduction >50% associated with an intermediate measuring. During the intermediate measuring, the semi-finished product is softened by annealing at a temperature ranging from 500 to 850° C., wherein the high temperatures are used for high Ag contents, and is subsequently quenched. Afterwards, the semi-finished product is exposed to the 80% cold shaping. The inventive method also consists in carrying out a recrystallization annealing treatment in such a way that the entire cubic texture is obtainable. The inventive semi-finished product is used in the form of a base for physical-chemical coatings provided with a high-quality intense microstructural orientation and for producing a high-temperature superconductor in the form of a flat wire or strip. | 01-08-2009 |
| 20120247626 | METHOD OF FABRICATING INCONEL 718 TYPE NICKEL SUPERALLOYS - A method of fabricating Inconel 718 type nickel superalloys. A last forging operation to which the nickel superalloy is subjected is such: that it takes place at a temperature lower than the δ-solvus temperature; that at all points of the nickel superalloy the local deformation ratio is not less than a minimum value; and that the nickel superalloy is not subjected to any heat treatment at a temperature higher than a threshold temperature equal to 750° C. after a quenching. | 10-04-2012 |
| 20130037184 | METHOD FOR FORGING METAL ALLOY COMPONENTS FOR IMPROVED AND UNIFORM GRAIN REFINEMENT AND STRENGTH - A method of forging includes a first forging action that changes the shape of a metallic alloy work piece. A second forging action further changes the shape of the metallic alloy work piece after the first forging action. A heat treatment step is conducted after the first forging action and prior to the second forging action. The heat treatment step includes subjecting the metallic alloy work piece to a heat treatment temperature that alters the microstructure of the metallic alloy work piece without the application of a forging action that changes the shape of the metallic alloy work piece. | 02-14-2013 |
| 20130284326 | NICKEL-TITANIUM-RARE EARTH ALLOY AND METHOD OF PROCESSING THE ALLOY - A nickel-titanium-rare earth (Ni—Ti-RE) alloy comprises nickel at a concentration of from about 35 at. % to about 65 at. %, a rare earth element at a concentration of from about 1.5 at. % to about 15 at. %, boron at a concentration of up to about 0.1 at. %, with the balance of the alloy being titanium. In addition to enhanced radiopacity compared to binary Ni—Ti alloys and improved workability, the Ni—Ti-RE alloy preferably exhibits superelastic behavior. A method of processing a Ni—Ti-RE alloy includes providing a nickel-titanium-rare earth alloy comprising nickel at a concentration of from about 35 at. % to about 65 at. %, a rare earth element at a concentration of from about 1.5 at. % to about 15 at. %, the balance being titanium; heating the alloy in a homogenization temperature range below a critical temperature; and forming spheroids of a rare earth-rich second phase in the alloy while in the homogenization temperature range. | 10-31-2013 |
| 20160108506 | Ni-BASED HEAT-RESISTANT SUPERALLOY AND METHOD FOR PRODUCING THE SAME - There is provided a method for producing a Ni-based heat-resistant superalloy a primary γ′ phase with an average particle size of at least 500 nm comprising the steps of: providing a material to be hot-worked having a composition consisting of, by mass, 0.001 to 0.05% C, 1.0 to 4.0% Al, 4.5 to 7.0% Ti, 12 to 18% Cr, 14 to 27% Co, 1.5 to 4.5% Mo, 0.5 to 2.5% W, 0.001 to 0.05% B, 0.001 to 0.1% Zr, and the balance of Ni with inevitable impurities; heating the material to be hot-worked in a temperature having a range of 1,130 to 1,200° C. for at least 2 hours; cooling the material to be hot-worked heated by the heating step to a hot working temperature or less at a cooling rate of at most 0.03° C./second; and subjecting the material to be hot-worked to hot working after the cooling step. | 04-21-2016 |
| 148677000 | With ageing, solution treating, (i.e., for hardening), precipitation hardening or strengthening | 6 |
| 20110011500 | ULTRA HIGH STRENGTH ALLOY FOR SEVERE OIL AND GAS ENVIRONMENTS AND METHOD OF PREPARATION - A Ni—Fe—Cr—Mo alloy containing a small amount of Cu and correlated percentages of Nb, Ti and Al to develop a unique microstructure to produce 145 ksi minimum yield strength. The unique microstructure is obtained by special annealing and age hardening conditions, by virtue of which the alloy has an attractive combination of yield strength, impact strength, ductility, corrosion resistance, thermal stability and formability, and is especially suited for corrosive oil well applications that contain gaseous mixtures of carbon dioxide and hydrogen sulfide. The alloy comprises in weight percent the following: 0-15% Fe, 18-24% Cr, 3-9% Mo, 0.05 3.0% Cu, 3.6-6.5% Nb, 0.5-2.2% Ti, 0.05-1.0% Al, 0.005-0.040% C, balance Ni plus incidental impurities and a ratio of Nb/(Al+Ti) in the range of 2.5-7.5. To facilitate formability, the composition range of the alloy is balanced to be Laves phase free. According to the disclosed method of manufacture, the above alloy is provided and hot worked to a desired shape such as a bar or tube for corrosive oil and gas deep wells. The shaped alloy is heat treated by solution annealing, quenching or air cooling, followed by one or two aging steps to precipitate.y′ and y″ phases. | 01-20-2011 |
| 20110203707 | NICKEL-BASE ALLOY, PROCESSING THEREFOR, AND COMPONENTS FORMED THEREOF - A gamma prime nickel-base superalloy and components formed therefrom that exhibit improved high-temperature dwell capabilities, including creep and dwell fatigue crack growth behavior. The superalloy contains, by weight, 10.00 to 22.0% cobalt, 10.0 to 14.0% chromium, 4.0 to 6.0% tantalum, 2.0 to 4.0% aluminum, 2.0 to 6.0% titanium, 1.5 to 5.0% tungsten, 1.5 to 5.0% molybdenum, 1.0 to 3.5% niobium, 0.05 to 0.6% hafnium, 0.02 to 0.10% carbon, 0.01 to 0.40% boron, 0.02 to 0.10% zirconium, the balance essentially nickel and impurities, wherein the titanium:aluminum weight ratio is 0.7 to 1.5. The superalloy is hot worked and heat treated to contain cellular gamma prime precipitates that distort grain boundaries, creating tortuous grain boundary fracture paths that are believed to promote the fatigue crack growth resistance of the superalloy. | 08-25-2011 |
| 20140116582 | THERMO-MECHANICAL PROCESSING OF NICKEL-BASE ALLOYS - A thermo-mechanical treatment process is disclosed. A nickel-base alloy workpiece is heated in a first heating step to a temperature greater than the M | 05-01-2014 |
| 20160145729 | Ni-BASED SUPERALLOY WITH EXCELLENT OXIDIZATION RESISTANCE AND CREEP PROPERTY AND METHOD OF MANUFACTURING THE SAME - The present disclosure relates to a Ni-based superalloy with excellent oxidation resistance and creep properties, which is suitable for parts of energy plants and chemical plants under a corrosive oxidative/reductive atmosphere, which stainless steel cannot withstand, through adjustment of alloy components and control of process conditions and a method of manufacturing the same. The Ni-based superalloy includes: chromium (Cr): 20˜26 wt %, tungsten (W): 13˜17 wt %, molybdenum (Mo): 1˜5 wt %, manganese (Mn): 0.1˜1.0 wt %, silicon (Si): 0.1˜0.6 wt %, aluminum (Al): 0.1˜1.0 wt %, lanthanum (La): 0.01˜0.06 wt %, carbon (C): 0.01˜0.20 wt %, and the balance of nickel (Ni) and unavoidable impurities. | 05-26-2016 |
| 20160160334 | Ni-Based Alloy Product and Method for Producing Same, and Ni-Based Alloy Member and Method for Producing Same - There are provided: an Ni-based alloy member including a γ′ phase precipitation with 36 to 60 volume % and exhibiting a high durable temperature and good cold workability; a method for producing the member; an Ni-based alloy product to be used as a precursor of the member; and a method for producing the product. The Ni-based alloy product has a two-phase structure composed of a γ phase and a γ′ phase being incoherent to the γ phase, the incoherent γ′ phase being present at a ratio of 20 volume % or higher. The Ni-based alloy member produced by cold working the Ni-based alloy product and subsequently by conducting heat treatment comprises a γ phase and a γ′ phase being coherent to the γ phase, the coherent γ′ phase being present at a ratio of 36 to 60 volume %, and has a predetermined shape. | 06-09-2016 |
| 20180023176 | METHOD FOR MANUFACTURING NI-BASED SUPER-HEAT-RESISTANT ALLOY | 01-25-2018 |
