Class / Patent application number | Description | Number of patent applications / Date published |
420443000 | Rare earth, magnesium or alkaline earth metal containing | 42 |
20080206089 | Ni-Cr-Fe Alloy For High-Temperature Use - The present application relates to an alloy for use at high temperature. The invention is characterized in that the alloy consists principally of Ni, Cr and Fe and in that the alloy has a principal composition such that the levels of the elements Fe, Si, C, Nb and Mo lie within the following intervals, given in percentage by weight: Fe 5-13 Si 1-3 C <0.1 Nb <0.2 Mo <1.0 and in that Ni comprises the balance, while its level does not exceed 69% and in that the level of Cr is greater than Cr=15% and in that it is less than the lower of the two values Cr=5*Si−2.5*Fe +42.5 and Cr=25 | 08-28-2008 |
20080260571 | Oxidation resistant superalloy - A nickel-based superalloy that forms a chromia scale in an oxidizing environment is disclosed. The alloy provides good oxidation resistance at temperatures below 900° C. in a dry or moist atmosphere. The superalloy is well-suited for components of gas or steam turbine engines including blades and vanes. | 10-23-2008 |
20080260572 | Corrosion and oxidation resistant directionally solidified superalloy - A nickel-based superalloy having a good balance between corrosion and oxidation resistance. The alloy provides good mechanical properties. The superalloy is suited for directional solidification casting but can also be used for conventional or single crystal casting techniques. The superalloy is well suited for the hot section components such as blades, vanes and ring segments for gas turbine engines. The superalloys can be used with various thermal barrier coatings | 10-23-2008 |
20090004043 | Corrosion-resistant nickel-base alloy - The corrosion-resistant nickel-base alloy combines thermal stability with corrosion resistance and mechanical strength. The alloy contains balanced proportions of nickel, molybdenum, chromium, and iron with an effective amount of yttrium to stabilize grain boundaries against unwanted reactions, which might degrade corrosion resistance, and an effective amount of boron to maintain an acceptable level of ductility. The alloy may contain minor amounts of additives or impurities, such as silicon, manganese, and aluminum. The alloy may contain between about 25-45% molybdenum, 2-6% chromium, 2-4% iron, 0.01-0.03% boron, 0.005-0.015% yttrium, and up to a maximum of 1% manganese, silicon, and aluminum, respectively, by weight, the balance being nickel. It is preferred that the combined ratio of molybdenum, chromium, and iron to nickel be in the range of about 25% to 45%. | 01-01-2009 |
20090016926 | THERMOSTABLE AND CORROSION-RESISTANT CAST NICKEL-CHROMIUM ALLOY - A nickel-chromium casting alloy comprising, in weight percent, up to 0.8% of carbon, up to 1% of silicon, up to 0.2% of manganese, 15 to 40% of chromium, 0.5 to 13% of iron, 1.5 to 7% of aluminum, up to 2.5% of niobium, up to 1.5% of titanium, 0.01 to 0.4% of zirconium, up to 0.06% of nitrogen, up to 12% of cobalt, up to 5% of molybdenum, up to 6% of tungsten and from 0.01 to 0.1% of yttrium, remainder nickel, has a high resistance to carburization and oxidation even at temperatures of over 1130° C. in a carburizing and oxidizing atmosphere, as well as a high thermal stability, in particular creep rupture strength. | 01-15-2009 |
20090041615 | Corrosion Resistant Alloy Compositions with Enhanced Castability and Mechanical Properties - Disclosed are novel nickel-base alloy compositions that may be cast as a single crystal or directionally solidified alloy consisting essentially of, by weight: 8-12% Cr, 10-14% Co, 0.3-0.9% Mo, 3-7% W, 2-8% Ta, 2.0-5.5% Al, 1.5-5.0% Ti, up to 2% Nb, less than 0.1% B, less than 0.1% Zr, 0.05-0.15% C, less than 0.5% Hf, 2-4% Re, 0.05-0.2% Si, up to 0.015% S, up to 0.1% La, up to 0.1% Y, up to 0.1% Ce, up to 0.1% Nd, up to 0.1% Dy, up to 0.1% Pr, up to 0.1% Gd, balance is Ni, and wherein (La+Y+Ce+Nd+Dy+Pr+Gd) is 0.001-0.1%. The compositions for the nickel-base superalloy have a balance between oxidation resistance, corrosion resistance, castability, and mechanical properties, such as creep resistance and thermo-mechanical fatigue resistance. | 02-12-2009 |
20090155119 | Weldable oxidation resistant nickel-iron-chromium-aluminum alloy - A weldable, high temperature oxidation resistant alloy with low solidification crack sensitivity and good resistance to strain age cracking. The alloy contains by weight percent, 25% to 32% iron, 18% to 25% chromium, 3.0% to 4.5% aluminum, 0.2% to 0.6% titanium, 0.2% to 0.4% silicon, 0.2% to 0.5% manganese and the balance nickel plus impurities. The Al+Ti content should be between 3.4 and 4.2 and the Cr/Al ratio should be from about 4.5 to 8. | 06-18-2009 |
20090175755 | ALLOY COMPOSITION FOR THE MANUFACTURE OF PROTECTIVE COATINGS, ITS USE, PROCESS FOR ITS APPLICATION AND SUPER-ALLOY ARTICLES COATED WITH THE SAME COMPOSITION - Alloy composition for the manufacture of protective coatings, comprising cobalt, nickel, chromium, aluminium, yttrium and iridium in amounts so as to obtain the phases α, β and σ, in particular for coating a super-alloy article. Preferably, such super-alloy article is a turbine component. | 07-09-2009 |
20090257908 | Ultra Supercritical Boiler Header Alloy and Method of Preparation - A high temperature, high strength Ni—Co—Cr alloy possessing essentially fissure-free weldability for long-life service at 538° C. to 816° C. contains in % by weight about: 23.5 to 25.5% Cr, 15-22% Co, 1.1 to 2.0% Al, 1.0 to 1.8 % Ti, 0.95 to 2.2% Nb, less than 1.0% Mo, less than 1.0% Mn, less than 0.3% Si, less than 3% Fe, less than 0.3% Ta, less than 0.3% W, 0.005 to 0.08% C, 0.01 to 0.3% Zr, 0.0008 to 0.006% B, up to 0.05% rare earth metals, 0.005% to 0.025% Mg plus optional Ca and the balance Ni including trace additions and impurities. The strength and stability is assured at 760° C. when the Al/Ti ratio is constrained to between 0.95 and 1.25. Further, the sum of Al+Ti is constrained to between 2.25 and 3.0. The upper limits for Nb and Si are defined by the relationship: (% Nb+0.95)+3.32(% Si)<3.16. | 10-15-2009 |
20090317287 | SINGLE CRYSTAL NICKEL-BASED SUPERALLOY COMPOSITIONS, COMPONENTS, AND MANUFACTURING METHODS THEREFOR - Single crystal nickel-based superalloy compositions, single crystal nickel-based superalloy components, and methods of fabricating such components are provided. In an embodiment, by way of example only, a single crystal nickel-based superalloy composition consists essentially of, in weight percent from about 3.8 to about 4.2 percent chromium, from about 10.0 to about 10.5 percent cobalt, from about 1.8 to about 2.2 percent molybdenum, from about 4.8 to about 5.2 percent tungsten, from about 5.8 to about 6.2 percent rhenium, from about 5.5 to about 5.8 percent aluminum, from about 5.8 to about 6.2 percent tantalum, from about 3.8 to about 4.2 percent ruthenium, from about 0.13 to about 0.17 percent hafnium, and a balance of nickel. | 12-24-2009 |
20100003163 | Nickel-Based Alloy - Nickel-based alloy, consisting of (in % by mass) Al 1.2-<2.0% Si 1.2-<1.8% C 0.001-0.1% S 0.001-0.1% Cr 0.03-0.1% Mn 0.03-0.1% Cu max. 0.1% Fe 0.02-0.2% Mg 0.005-0.06% Pb max. 0.005% Y 0.05-0.15% and Hf 0.05-0.10% or Y 0.05-0.15% and La 0.05-0.10% or Y 0.05-0.15% and Hf 0.05-0.10% and La 0.05-0.10% Ni remainder together with manufacturing-related impurities. | 01-07-2010 |
20100135846 | LOWER COST HIGH STRENGTH SINGLE CRYSTAL SUPERALLOYS WITH REDUCED RE AND RU CONTENT - A first embodiment of a nickel based alloy consists essentially of from 3.0 to 5.2 wt % chromium, from 1.5 to 3.0 wt % molybdenum, from 6.0 to 12.5 wt % tungsten, from 5.0 to 11 wt % tantalum, from 5.5 to 6.5 wt % aluminum, from 11 to 14 wt % cobalt, from 0.001 to 1.75 wt % rhenium, from 0.2 to 0.6 wt % hafnium, up to 0.05 wt % yttrium, up to 3.0 wt % ruthenium, and the balance nickel. Another embodiment of a nickel based alloy consists essentially of from 1.0 to 3.0 wt % chromium, up to 2.5 wt % molybdenum, from 11 to 16 wt % tungsten, from 4.0 to 8.0 tantalum, from 5.7 to 6.5 wt % aluminum, from 11 to 15 wt % cobalt, from 2.0 to 4.0 wt % rhenium, from 0.2 to 0.6 wt % hafnium, up to 0.05 wt % yttrium, up to 3.0 wt % ruthenium, and the balance nickel. | 06-03-2010 |
20100166594 | AUSTENITIC HEAT RESISTANT ALLOY - An austenitic heat resistant alloy, which comprises, by mass percent, C≦0.15%, Si≦2%, Mn≦3%, Ni: 40 to 80%, Cr: 15 to 40%, W and Mo: 1 to 15% in total content, Ti≦3%, Al≦3%, N≦0.03%, O≦0.03%, with the balance being Fe and impurities, and among the impurities P≦0.04%, S≦0.03%, Sn≦0.1%, As≦0.01%, Zn≦0.01%, Pb≦0.01% and Sb≦0.01%, and satisfies the conditions [P1=S+{(P+Sn)/2}+{(As+Zn+Pb+Sb)/5}≦0.050], [0.2≦P2=Ti+2Al≦7.5−10×P1], [P2≦9.0−100×O] and [N≦0.002×P2+0.019] can prevent both the liquation crack in the HAZ and the brittle crack in the HAZ and also can prevent defects due to welding fabricability, which occur during welding fabrication, and moreover has excellent creep strength at high temperatures. Therefore, the alloy can be used suitably as a material for constructing high temperature machines and equipment, such as power generating boilers, plants for the chemical industry and so on. The ally may contain a specific amount or amounts of one or more elements selected from Co, B, Ta, Hf, Nb, Zr, Ca, Mg, Y, La, Ce and Nd. | 07-01-2010 |
20100172789 | METHOD OF COATING WITH CRYO-MILLED NANO-GRAINED PARTICLES - A method of coating a substrate with cryo-milled, nano-grained particles includes forming a face-centered-cubic gamma matrix comprising nickel, cobalt, chromium, tungsten and molybdenum, adding a dispersion strengthening material to the gamma matrix to form a first mixture, cryo-milling the first mixture to form a second mixture to form a nano-grained structure, and cold spraying the second mixture onto a substrate to form a coating having a nano-grained structure. | 07-08-2010 |
20100172790 | IRON-NICKEL-CHROMIUM-SILICON ALLOY - The invention relates to an iron-nickel-chromium-silicon alloy comprising (in wt.-%) 19 to 34% or 42 to 87% nickel, 12 to 26% chromium, 0.75 to 2.5% silicon, and additives of 0.05% to 1% Al, 0.01 to 1% Mn, 0.01 to 0.26% lanthanum, 0.0005 to 0.05% magnesium, 0.04 to 0.14% carbon, 0.02 to 0.14% nitrogen, and further comprising 0.0005 to 0.07% Ca, 0.002 to 0.020% P, a maximum of 0.01% sulfur, a maximum of 0.005% B, the remainder comprising iron and the usual process-related impurities | 07-08-2010 |
20100310411 | Ni-BASED SUPERALLOY WITH EXCELLENT UNSUSCEPTIBILITY TO SEGREGATION - A subject for the invention is to diminish the occurrence of streak-type segregation in producing a material comprising a Ni-based superalloy. | 12-09-2010 |
20110076179 | SUPER OXIDATION AND CYCLIC DAMAGE RESISTANT NICKEL-BASE SUPERALLOY AND ARTICLES FORMED THEREFROM - A nickel-base superalloy composition including (measured in % by weight) from about 6.8 to about 7.5% aluminum, from about 4 to about 8% tantalum, from about 4 to about 10% chromium, from about 2 to about 7% tungsten, from 0 to about 6% rhenium, from 0 to about 5% cobalt, from 0 to about 0.2% silicon, optionally, from about 0.15 to about 0.7% hafnium, from 0 to about 0.5% titanium, from 0 to about 4% molybdenum, from 0 to about 0.005% boron, from 0 to about 0.06% carbon, from 0 to about 0.03% of a rare earth addition selected from the group consisting of yttrium, lanthanum, cesium, and combinations thereof, balance nickel and incidental impurities. The nickel-base superalloy composition may be used in single-crystal or directionally solidified superalloy articles such as high pressure turbine blades for a gas turbine engine. | 03-31-2011 |
20110076180 | Nickel-Based Superalloys and Articles - Rhenium-free nickel based alloys are provided. More particularly, the alloys comprise preferred levels and ratios of elements so as to achieve good high temperature strength of both gamma matrix phase and gamma prime precipitates, as well as good environmental resistance, without using rhenium. When cast and directionally solidified into single crystal form, the alloys exhibit creep and oxidation resistance substantially equivalent to or better than rhenium-bearing single-crystal alloys. Further, the alloys can be processed by directional solidification into articles in single crystal form or columnar structure comprising fine dendrite arm spacing, e.g., less than 400 μm, if need be, so that further improvements in mechanical properties in the articles can be seen. | 03-31-2011 |
20110142712 | Nickel base gamma prime strengthened superalloy - A nickel base gamma prime strengthened superalloy with a unique blend of high hot corrosion resistance, high oxidation resistance, high coating compatibility, good weldability, high phase stability and at least moderate creep resistance is disclosed. The composite includes: Up to | 06-16-2011 |
20110142713 | WELDING MATERIALS FOR Ni-BASED ALLOY - Disclosed is a welding material for a Ni-based alloy, comprising components expressed as follows: C≦0.05 mass %; 8 mass %≦Cr≦25 mass %; Fe≦4.0 mass %; W≦15 mass %; 5 mass %≦Mo+½(W+Re)≦20 mass %; Co≦20 mass %; 0.01 mass %≦Al<2.0 mass %; 0.01 mass %≦Ti<2.0 mass %; Al+½Ti≦3.0 mass %; Nb+½Ta≦1.5 mass %; B≦0.007 mass %; Zr≦0.04 mass %; 0.01 mass %≦Si≦0.5 mass %; Mn≦1.0 mass %; P≦0.010 mass %; S≦0.002 mass %; O≦0.005 mass %; and Ni and unavoidable impurities which constitute the balance. | 06-16-2011 |
20110274579 | Welding Additive, Use of the Welding Additive and Component - A welding additive is provided. A component including a welding additive is also provided. The welding additive improves the weldability of a few nickel-based superalloys and includes the following contents (in wt %): 10.0%-20.0% chromium, 5.0%-15.0% cobalt, 0.0%-10.0% molybdenum, 0.5-3.5% tantalum, 0.0%-5.0% titanium, 1.5%-5.0% aluminum, 0.3%-0.6% boron, remainder nickel. | 11-10-2011 |
20120014832 | Ni-BASED SINGLE CRYSTAL SUPERALLOY - The Ni-based single crystal alloy disclosed here is a single crystal and has a chemical composition containing, as % by mass,
| 01-19-2012 |
20120034127 | LOW SULFUR NICKEL-BASE SINGLE CRYSTAL SUPERALLOY WITH PPM ADDITIONS OF LANTHANUM AND YTTRIUM - A single crystal casting having substantially improved high-temperature oxidation resistance, hot corrosion (sulfidation) resistance, and resistance to creep under high temperature and high stress is characterized by an as-cast composition comprising a maximum sulfur content of 0.5 ppm by weight, a maximum phosphorus content of 20 ppm by weight, a maximum nitrogen content of 3 ppm by weight, a maximum oxygen content of 3 ppm by weight, and a combined yttrium and lanthanum content of 5-80 pm by weight. It has been discovered that careful control of the deleterious impurities, particularly sulfur, phosphorus, nitrogen and oxygen, in combination with a carefully controlled addition of yttrium and/or lanthanum provides unexpected improvements in corrosion and oxidation resistance, while also enhancing high-temperature, high-stress resistance to creep, without any detrimental effects on other mechanical properties, processing or producability, particularly castability. | 02-09-2012 |
20120128525 | Metallic Bondcoat or Alloy with a High y/y' Transition Temperature and a Component - A nickel-based coating or alloy is provided. The coating includes tantalum preferably without rhenium. The coating or alloy has stabilized the formation of phases γ/γ′ at high temperatures leading to a reduction of local stresses. A component is also provided. The substrate of the component includes a nickel-based or cobalt-based superalloy. | 05-24-2012 |
20120128526 | Metallic Bondcoat or Alloy with a High y/y' Transition Temperature and a Component - A nickel-based coating or alloy is provided. The coating includes tantalum preferably without rhenium. The coating or alloy has stabilized the formation of phases γ/γ′ at high temperatures leading to a reduction of local stresses. A component is also provided. The substrate of the component includes a nickel-based or cobalt-based superalloy. | 05-24-2012 |
20120189488 | Nickel base superalloy with multiple reactive elements and use of said superalloy in complex material systems - A nickel-base y/y′ superalloy with a blend of at most moderate cost, high oxidation resistance, high hot corrosion resistance, moderate strengthening, adequate allow stability and comparatively good weldability is provided. The alloy includes up to 20 wt % of the sum of Co and Fe, between 17 and 21 wt % Cr, between 0.5 and 3 wt % of the sum of Mo and W, at most 2 wt % Mo, between 4.8 and 6 wt % Al, between 1.5 and 5 wt % Ta, between 0.01 and 0.2 wt % of the sum of C and B, between 0.01 and 0.2 wt % Zr between 0.05 and 1.5 wt % Hf, between 0.05 and 1.0 wtz % Si, and between 0.01 and 0.5 wt % of the sum of rare earths such as Sc, Y, the actinides and the lanthanides, such that at least two of these rare earths are present in the alloy, and no more than 0.3 wt % of any of these rare earths. | 07-26-2012 |
20120213660 | High Temperature Low Thermal Expansion Ni-Mo-Cr Alloy - An alloy designed for use in gas turbine engines which has high strength and a low coefficient of thermal expansion is disclosed. The alloy may contain in weight percent 7% to 9% chromium, 21% to 24% molybdenum, greater than 5% tungsten, up to 3% iron, with a balance being nickel and impurities. The alloy must further satisfy the following compositional relationship: 31.9508-23-2012 | |
20120308427 | NICKEL BRAZE ALLOY COMPOSITION - An alloy composition includes a blend of a first alloy and a second, different alloy. The blend has a combined composition including about 17.2 wt %-24.25 wt % of chromium, about 6 wt %-10.51 wt % of aluminum, about 3 wt %-23 wt % of cobalt, about 1.5 wt %-3.6 wt % of silicon, about 0.1 wt %-0.175 wt % of boron, up to about 0.163 wt % of hafnium, about 0.075 wt %-0.7 wt % of yttrium, and a balance of nickel. | 12-06-2012 |
20130078136 | NICKEL-BASED ALLOY - Nickel-based alloy consisting of (in % by mass) Si 0.8-2.0%, Al 0.001-0.1%, Fe 0.01-0.2%, C 0.001-0.10%, N 0.0005-0.10%, Mg 0.0001-0.08%, O 0.0001-0.010%, Mn max. 0.10%, Cr max. 0.10%, Cu max. 0.50%, S max. 0.008%, balance Ni and the usual production-related impurities. | 03-28-2013 |
20130136648 | METALLIC BONDCOAT OR ALLOY WITH A HIGH GAMMA/GAMMA' TRANSITION TEMPERATURE AND A COMPONENT - A metallic coating is provided. The nickel based metallic coating includes tantalum, cobalt, chromium, and aluminum. The nickel based metallic coating does not include silicon and/or hafnium and/or zirconium. A tantalum addition in nickel based coating stabilized the phases gamma/gamma | 05-30-2013 |
20130224068 | METALLIC BONDCOAT WITH A HIGH GAMMA/GAMMA' TRANSITION TEMPERATURE AND A COMPONENT - A metallic coating or alloy is provided. The metallic coating includes iron, cobalt, chromium, and aluminum. Tantalum may also be included. A new addition in nickel based coating with stabilized gamma/gamma′ phases at high temperatures lead to a reduction of local stresses. A component including the metallic coating or alloy is also provided. | 08-29-2013 |
20130294964 | WELDABLE OXIDATION RESISTANT NICKEL-IRON-CHROMIUM ALUMINUM ALLOY - A weldable, high temperature oxidation resistant alloy with low solidification crack sensitivity and good resistance to strain age cracking. The alloy contains by weight percent, 25% to 32% iron, 18% to 25% chromium, 3.0% to 4.5% aluminum, 0.2% to 0.6% titanium, 0.2% to 0.43% silicon, up to 0.5% manganese and the balance nickel plus impurities. The Al+Ti content should be between 3.4 and 4.2 and the Cr/Al ratio should be from about 4.5 to 8. | 11-07-2013 |
20130323113 | NICKEL-CHROMIUM-IRON-ALUMINUM ALLOY HAVING GOOD PROCESSABILITY - The invention relates to a nickel-chromium-aluminum-iron alloy, comprising (in wt %) 12 to 28% chromium, 1.8 to 3.0% aluminum, 1.0 to 15% iron, 0.01 to 0.5% silicon, 0.005 to 0.5% manganese, 0.01 to 0.20% yttrium, 0.02 to 0.60% titanium, 0.01 to 0.2% zirconium, 0.0002 to 0.05% magnesium, 0.0001 to 0.05% calcium, 0.03 to 0.11% carbon, 0.003 to 0.05% nitrogen, 0.0005 to 0.008% boron, 0.0001 to 0.010% oxygen, 0.001 to 0.030% phosphorus, max. 0.010% sulfur, max. 0.5% molybdenum, max. 0.5% tungsten, the remainder nickel and the common contaminants resulting from the process, wherein the following relations must be satisfied: 7.7C−x·a<1.0, wherein a=PN if PN>0 or a=0 if PN≦0. Here, x=(1.0 Ti+1.06 Zr)/(0.251 Ti+0.132 Zr), PN=0.251 Ti+0.132 Zr−0.857 N, and Ti, Zr, N, and C are the concentration of the respective element in mass percent. | 12-05-2013 |
20140050609 | OXIDATION RESISTANT NICKEL ALLOY - The present invention relates to an oxidation resistant Nickel alloy, characterized in the following chemical composition (in % by weight): 4-7 Cr, 4-5 Si, 0.1-0.2 Y, 0.1-0.2 Mg, 0.1-0.2 Hf, remainder Ni and unavoidable impurities. A preferred embodiment has the following chemical composition (in % by weight): 6 Cr, 4.4 Si, 0.1 Y, 0.15 Mg, 0.1 Hf, remainder Ni and unavoidable impurities. This alloy has an improved oxidation resistance, good creep properties at high temperatures and. | 02-20-2014 |
20140234155 | Ni-BASED HEAT RESISTANT ALLOY - A Ni-based heat resistant alloy as pipe, plate, rod, forgings and the like consists of C≦0.15%, Si≦2%, Mn≦3%, P≦0.03%, S≦0.01%, Cr: 15% or more and less than 28%, Mo: 3 to 15%, Co: more than 5% and not more than 25%, Al: 0.2 to 2%, Ti: 0.2% to 3%, Nd: fn to 0.08%, and O≦0.4Nd, further containing, as necessary, at least one kind of Nb, W, B, Zr, Hf, Mg, Ca, Y, La, Ce, Ta, Re and Fe of specific amounts, the balance being Ni and impurities, wherein, fn=1.7×10 | 08-21-2014 |
20150050182 | NICKEL-CHROMIUM-ALUMINUM ALLOY HAVING GOOD PROCESSABILITY, CREEP RESISTANCE AND CORROSION RESISTANCE - A nickel-chromium-aluminum-iron alloy includes (in wt.-%) 24 to 33% chromium, 1.8 to 4.0% aluminum, 0.10 to 7.0% iron, 0.001 to 0.50% silicon, 0.005 to 2.0% manganese, 0.00 to 0.60% titanium, 0.0002 to 0.05% each of magnesium and/or calcium, 0.005 to 0.12% carbon, 0.001 to 0.050% nitrogen, 0.0001 to 0.020% oxygen, 0.001 to 0.030% phosphorus, not more than 0.010% sulfur, not more than 2.0% molybdenum, not more than 2.0% tungsten, the remainder nickel and the usual process-related impurities, wherein the following relations must be satisfied: Cr+Al≧28 (2 | 02-19-2015 |
20150093288 | NICKEL-CHROMIUM ALLOY HAVING GOOD PROCESSABILITY, CREEP RESISTANCE AND CORROSION RESISTANCE - The invention relates to a nickel-chromium alloy comprising (in wt.-%) 29 to 37% chromium, 0.001 to 1.8% aluminum, 0.10 to 7.0% iron, 0.001 to 0.50% silicon, 0.005 to 2.0% manganese, 0.00 to 1.00% titanium and/or 0.00 to 1.10% niobium, 0.0002 to 0.05% each of magnesium and/or calcium, 0.005 to 12% carbon, 0.001 to 0.050% nitrogen, 0.001 to 0.030% phosphorus, 0.0001 to 0.020% oxygen, not more than 0.010% sulfur, not more than 2.0% molybdenum, not more than 2.0% tungsten, the remainder nickel and the usual process-related impurities, wherein the following relations must be satisfied: Cr+Al≧30 (2a) and Fp≦39.9 (3a) with Fp=Cr+0.272*Fe+2.36*Al+2.22*Si+2.48*Ti+0.374*Mo+0.538*W−11.8*C (4a), wherein Cr, Fe, Al, Si, Ti, Mo, W and C is the concentration of the respective elements in % by mass. | 04-02-2015 |
20150322550 | HIGH STRENGTH SINGLE CRYSTAL SUPERALLOY - A nickel-base superalloy for single crystal casting of components exhibiting excellent creep and rupture properties at high temperature and stresses, and which exhibits excellent phase stability contains 5.60% to 5.80% by weight of aluminum; 9.4% to 9.8% by weight of cobalt; 3.2% to 3.9% by weight of chromium; 7.8% to 8.5% by weight of tantalum; 5.3% to 5.7% by weight of tungsten; 0.50% to 0.70% by weight of molybdenum; 4.3% to 4.9% by weight of rhenium; 0.75% to 0.90% by weight of titanium; 0.08% to 0.15% by weight of hafnium; less than 1.1% by weight of tramp elements other than aluminum, cobalt, chromium, tantalum, tungsten, molybdenum, rhenium, titanium and nickel; and balance nickel. | 11-12-2015 |
20160002752 | Fabricable, High Strength, Oxidation Resistant Ni-Cr-Co-Mo-Al Alloys - Ni—Cr—Co—Mo—Al based alloys are disclosed which contain 15 to 20 wt. % chromium, 9.5 to 20 wt. % cobalt, 7.25 to 10 wt. % molybdenum, 2.72 to 3.9 wt. % aluminum, along with typical impurities, a tolerance for up to 10.5 wt. % iron, minor element additions and a balance of nickel. These alloys are readily fabricable, have high creep strength, and excellent oxidation resistance up to as high as 2100° F. (1149° C.). This combination of properties is useful for a variety of gas turbine engine components, including, for example, combustors. | 01-07-2016 |
20160032425 | NICKEL-BASED ALLOY WITH SILICON, ALUMINUM, AND CHROMIUM - A nickel-based alloy, consisting of (in mass %) 1.5-3.0% Si, 1.5-3.0% Al, and >0.1-3.0% Cr, where Al+Si+Cr is ≧4.0 and ≦8.0 for the contents of Si, Al, and Cr in %; 0.005-0.20% Fe, 0.01-0.20% Y, and <0.001-0.20% of one or more the elements Hf, Zr, La, Ce, Ti, where Y+0.5*Hf+Zr+1.8*Ti 0.6*(La+Ce) is ≧0.02 and ≦0.30 for the contents of Y, Hf, Zr, La, Ce, and Ti in %; 0.001-0.10% C; 0.0005-0.10% N; 0.001-0.20% Mn; 0.0001-0.08% Mg; 0.0001-0.010% O; max. 0.015% S; max. 0.80% Cu; Ni remainder; and the usual production-related impurities. | 02-04-2016 |
20160068932 | HIGH-STRENGTH NI-BASE ALLOY - A high-strength Ni-base alloy having favorable corrosion resistance, high strength, and high ductility, around room temperature is provided. A high-strength Ni-base alloy includes: in % by mass, less than 0.01% of C, not more than 0.5% of Si, not more than 0.5% of Mn, 15 to 25% of Cr. 1.0 to 5.0% of Mo or Mo+0.5W, 0.2 to 0.8% of Al, 1.0 to 2.0% of Ti, 3.00 to 3.80% of Nb, not more than 30% of Fe, and 0.0007 to 0.010% of Mg; Ni; and impurities. A value represented by Mg/S is not less than 0.7, and an A value is not less than 0.015 and less than 0.027, the A value being represented by A value=Al/(Al+1.77(Ti−1.36C)+3.44(Nb−5.1C)). | 03-10-2016 |
20160108501 | NICKEL CHROMIUM ALLOY - A nickel chromium alloy comprising 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 0.1% nitrogen, and 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. | 04-21-2016 |