EP0549286A1 - Gegen hohe Temperatur beständige Ni-Cr-Legierung - Google Patents
Gegen hohe Temperatur beständige Ni-Cr-Legierung Download PDFInfo
- Publication number
- EP0549286A1 EP0549286A1 EP92311611A EP92311611A EP0549286A1 EP 0549286 A1 EP0549286 A1 EP 0549286A1 EP 92311611 A EP92311611 A EP 92311611A EP 92311611 A EP92311611 A EP 92311611A EP 0549286 A1 EP0549286 A1 EP 0549286A1
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- EP
- European Patent Office
- Prior art keywords
- alloy
- less
- cerium
- magnesium
- yttrium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 60
- 239000000956 alloy Substances 0.000 title claims abstract description 60
- 229910018487 Ni—Cr Inorganic materials 0.000 title description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 19
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 17
- 239000011651 chromium Substances 0.000 claims abstract description 16
- 239000011777 magnesium Substances 0.000 claims abstract description 16
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 16
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims abstract description 16
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 15
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 15
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 15
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 13
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011575 calcium Substances 0.000 claims abstract description 12
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 12
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 12
- 239000010703 silicon Substances 0.000 claims abstract description 12
- 239000010936 titanium Substances 0.000 claims abstract description 12
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 11
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052796 boron Inorganic materials 0.000 claims abstract description 11
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 10
- 239000010941 cobalt Substances 0.000 claims abstract description 10
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 10
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000012535 impurity Substances 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 9
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 8
- 238000005260 corrosion Methods 0.000 claims abstract description 6
- 230000007797 corrosion Effects 0.000 claims abstract description 6
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims abstract description 5
- 239000010949 copper Substances 0.000 claims description 5
- 239000010955 niobium Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 239000011733 molybdenum Substances 0.000 claims description 4
- 229910052758 niobium Inorganic materials 0.000 claims description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 229910052720 vanadium Inorganic materials 0.000 claims description 4
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052787 antimony Inorganic materials 0.000 claims description 3
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910052797 bismuth Inorganic materials 0.000 claims description 3
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 3
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 229910052718 tin Inorganic materials 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 description 35
- 238000007254 oxidation reaction Methods 0.000 description 35
- 238000012360 testing method Methods 0.000 description 19
- 230000002411 adverse Effects 0.000 description 7
- 229910001026 inconel Inorganic materials 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 125000004122 cyclic group Chemical group 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 229910019589 Cr—Fe Inorganic materials 0.000 description 4
- 230000001464 adherent effect Effects 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000013101 initial test Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910001339 C alloy Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012993 chemical processing Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000000399 optical microscopy Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/058—Alloys based on nickel or cobalt based on nickel with chromium without Mo and W
Definitions
- This invention is related to the field of Ni-Cr-Fe alloys and particularly to alloys used in high temperature (1200°C) applications.
- Ni-Cr-Fe alloys such as INCONEL® alloy 601 have historically been used for general-purpose engineering applications requiring heat and corrosion resistance. (INCONEL is a registered trademark of the Inco family of companies.) In addition, INCONEL alloy 601 has excellent resistance to thermal cycle fatigue in combination with high temperature oxidation resistance. Commercial uses of INCONEL alloy 601 include thermal processing equipment, chemical processing applications, petrochemical applications, pollution control applications and turbine engine components.
- INCONEL alloy 601 has been widely used as a roller alloy for applications within high temperature kilns used in firing of ceramic tiles.
- rollers are typically exposed to oxidizing conditions at temperatures as high as 1000°C or 1165°C. At such high temperatures, roller alloys have a tendency to slowly fail due to gradual oxidation. At increased temperatures of about 1200°C, oxidation rate and spalling rate increase unacceptably.
- the invention provides a heat and corrosion resistant alloy having, by weight percent, 55-65% nickel, 19-25% chromium, 1-4.5% aluminum, 0.045-0.3% yttrium, 0.15-1% titanium, 0.005-0.5% carbon, 0.1-1.5% silicon, 0-1% manganese, at least 0.005% total magnesium, calcium and/or cerium, less than 0.5% total magnesium and/or calcium, less than 1% cerium, 0.0001-0.1% boron, 0-0.5% zirconium, 0.0001-0.1% nitrogen, 0-10% cobalt and balance iron and incidental impurities.
- Figure 1 is a plot of mass change versus time for various alloys in an air atmosphere at 1165°C.
- Figure 2 is a plot of mass charge versus time for various alloys in an air atmosphere at 1200°C.
- the invention provides a Ni-Cr-Fe-Al alloy with improved high temperature cyclic oxidation resistance.
- a nickel-base alloy containing a combination of chromium, yttrium, silicon and aluminum has been found to dramatically improve oxidation resistance at 1200°C.
- the 1200°C temperature is particularly useful for kilns used for firing lead-free frits.
- test heats of Ni-Cr-Fe alloys were cast into 10 kg ingots.
- Ingot 7 originated from a commercial heat.
- Chemical compositions of the test heats expressed in weight percent are given below in Table 1. (All compositions in this specification are expressed in weight percent unless specifically indicated.)
- Ingot numbers 1-6 represent experimental heats; and Ingot number 7 represents an alloy within the commercial range of INCONEL alloy 601.
- the ingots were machined, dressed and forged at 1140°C into 50.8 mm round bars. The round bars were annealed at 1175°C for 30 minutes.
- Test coupons were machined from forged bar into plates having approximate dimensions of 15 mm x 20 mm x 3 mm. Plates were pierced with a 3 mm diameter hole for poaching the coupon to a jig. All oxidation test specimens were polished with silicon carbide paper to a 240 grade finish. Following recordation of sample size, all test samples were degreased and dried in hot air. The test specimens were given a cyclic oxidation test of 168 hours in a 1200°C air atmosphere furnace followed by a 20 minutes cooling cycle. Results from the cyclic oxidation test are given below in Table 2.
- sample numbers correspond to the ingot numbers of Table 1. From the above high temperature experiment it was determined that the composition of ingot 4 at 1200°C provided the best oxidation resistance. Scale integrity was found to increase with decreased amounts of titanium. Segregation of yttrium rich phases at the alloy/scale interface was found to increase scale adhesion and may have an effect in modifying alloy oxidation mechanism leading to improved oxidation resistance. The tightly adherent scale layer of high yttrium sample number 4 was found to provide an effective barrier for preventing internal oxidation. In addition, the increased aluminum content of sample number 4 was believed to also contribute high temperature stability of the oxide scale.
- Alloy A provided a Ni-Cr-Fe-Al alloy with improved high temperature (1200°C) oxidation resistance.
- a combination of chromium, yttrium, silicon and aluminum was found to dramatically improve oxidation resistance.
- the improved Ni-Cr -Fe-Al alloy had only a slight decrease in hot ductility in comparison to commercial INCONEL alloy 601.
- the first series of tests containing the compositions listed below in Table 4 was prepared.
- the series of 12.5 kg cast ingot were machined, dressed and then forged at about 1150°C to 15 mm thick slabs. Each slab was then hot rolled at about 1150°C in stages to produce 4 mm thick hot band. Each sample was final annealed for 30 minutes at 1177°C and air cooled to room temperature. Prior to oxidation testing, the specimens were ground on silicon carbide paper to a 240 grade finish as previously provided for the samples of Table 1.
- Table 5 on average were slightly poorer than alloy 601 at 1100°C. However, alloys of the invention provided some improvement in cyclic oxidation at 1200°C. It is believed that result of Table 5 would be improved if the stable oxide were formed by an initial oxidation treatment at a temperature of at least 1100°C prior to testing.
- Oxidation penetration was also tested for alloys of the invention and alloy 601. Oxidation penetration test result data are given below in Table 7.
- Nickel in an amount of 55-65% provides workability, fabricability and general oxidation resistance to the alloy. Chromium in an amount of 19-25% provides oxidation resistance. Oxidation resistance is insufficient at less than 19% chromium. At chromium levels above 25 %, deleterious chromium phases may form. Initial testing has indicated that chromium levels above 20% have a neutral effect and do not contribute additional oxidation resistance. Aluminum is beneficial to oxidation properties and increased aluminum is believed to contribute to adherence of the oxide scale. Aluminum in an amount of at least 1 % or most advantageously at least 2.7% provides high temperature oxidation resistance. Aluminum is limited to 4.5% (preferably 3.5%) to limit adverse hot workability effects.
- Yttrium in an amount of at least 0.045% and preferably at least 0.05% contributes to stabilizing the oxide.
- Yttria was not readily visible with optical microscopy in the samples tested. Excess yttrium (above 0.3%) is believed to adversely affect hot workability and welding properties. Most advantageously yttrium is limited to 0.07%.
- Titanium is added as a reactive element to combine with nitrogen and carbon. At least 0.15 % titanium is added for tying up nitrogen. Excess titanium above 1 % adversely affects oxidation resistance and workability. Iron acts as an inexpensive substitute for nickel. Most advantageously at least 10% iron is present to lower the cost of the alloy. Furthermore, iron is most advantageously limited to 20 or 18% to limit reduction of nickel's beneficial properties. Carbon in an amount of 0.005% or preferably 0.01 % provides adequate grain size control. An upper limit of 0.5 % carbon or preferably 0.29 carbon is maintained to limit excessive carbide formation that ties up useful element and to limit grain boundary embrittlement. At least 0.1% silicon and advantageously 0.5% silicon is added for oxidation resistance. Silicon is limited to 1.5% or preferably 1% to limit weldability and workability problems.
- Manganese is an impurity that adversely impacts oxidation resistance.
- manganese is limited to 1% and most advantageously manganese is limited to 0.5%.
- at least 0.005% total magnesium, calcium and/or cerium are added for improved malleability and deoxidation.
- Total magnesium and/or calcium is advantageously limited to 0.5% and most advantageously 0.2% to minimize adverse effects upon weldability and workability.
- Boron in an amount of 0.0001% or preferably 0.001 % provides improved malleability. Boron is limited to 0.1% to minimize adverse effect upon malleability and weldability.
- boron is limited to 0.05% and most advantageously boron is limited to 0.01% or 0.006%.
- Zirconium may optionally be added for malleability and grain size control. Zirconium reacts with nitrogen to form nitrides that inhibit grain growth at elevated temperature. Zirconium is limited to 0.5% and most advantageously 0.2% to limit adverse effects upon weldability and workability. Similarly, nitrogen is added to provide an effective amount of grain growth resistance. Nitrogen, typically is provided in sufficient quantity as an impurity of raw materials. A quantity of at least 0.0001% nitrogen or 0.001 % nitrogen provides resistance against grain growth. Most advantageous grain growth control may be obtained by maintaining a level of at least 0.03 % nitrogen. Alternatively, grain growth may be controlled by limiting stored energy in the alloy by additional annealing steps between deformation processes. Nitrogen is limited to 0.2 % to avoid excess internal oxidation of beneficial elements. Nitrogen is advantageously limited and most advantageously to 0.1 % and 0.05% respectively.
- Cerium in an amount up to 1% may optionally be added as a magnesium substitute or for additional oxidation resistance.
- cerium is not necessary for oxidation resistance.
- Cobalt is an impurity acceptable in quantities up to 10% that acts as a substitute for nickel.
- cobalt is limited to 5% and most advantageously cobalt is maintained below 1 %. Due to the relatively high cost of cobalt, cobalt is preferably not deliberately added. Copper, molybdenum, niobium, vanadium and tungsten are advantageously held to the limits of Table 8 to improve appearance of the alloy.
- copper, molybdenum, niobium, vanadium and tungsten are held as low as commercially practical.
- Lead, tin, antimony, bismuth, phosphorous, sulfur and oxygen are all incidental impurities maintained at levels as low as commercially practical.
- the total lead, tin, antimony, bismuth, phosphorous, sulfur plus oxygen level is maintained below 0.1 %.
- alloy of the invention was tested to provide acceptable mechanical properties. Initial welding tests indicated a tendency for solidification cracking linked to increased yttrium content. However, the tests were not performed on alloys of the invention. Alloys of the invention are readily fabricated in seamless tubes by conventional extrusion or extrusion and cold working techniques. The tubes are then cut into short length rollers especially useful for kilns having operating temperatures around 1200°C.
- the oxide formed at high temperature is extremely adherent and less prone to discoloration of ceramics than conventional alloy 601.
- the adherent scale is especially useful for white ceramics.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Solid Thermionic Cathode (AREA)
- Powder Metallurgy (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Chemically Coating (AREA)
- Fuel Cell (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Heat Treatment Of Steel (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US812584 | 1985-12-23 | ||
| US81258491A | 1991-12-20 | 1991-12-20 | |
| US98911292A | 1992-12-11 | 1992-12-11 | |
| US989112 | 1992-12-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0549286A1 true EP0549286A1 (de) | 1993-06-30 |
| EP0549286B1 EP0549286B1 (de) | 1995-06-14 |
Family
ID=27123641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92311611A Revoked EP0549286B1 (de) | 1991-12-20 | 1992-12-18 | Gegen hohe Temperatur beständige Ni-Cr-Legierung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0549286B1 (de) |
| AT (1) | ATE123819T1 (de) |
| DE (1) | DE69202965T2 (de) |
| ES (1) | ES2073873T3 (de) |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0752481A1 (de) * | 1995-07-04 | 1997-01-08 | Krupp VDM GmbH | Knetbare Nickellegierung |
| US5997809A (en) * | 1998-12-08 | 1999-12-07 | Inco Alloys International, Inc. | Alloys for high temperature service in aggressive environments |
| WO2000034541A1 (en) * | 1998-12-09 | 2000-06-15 | Inco Alloys International, Inc. | High strength alloy tailored for high temperature mixed-oxidant environments |
| RU2169783C2 (ru) * | 1999-06-02 | 2001-06-27 | ОАО "Научно-производственное объединение энергетического машиностроения им. акад. В.П. Глушко" | Жаропрочный свариваемый сплав на никелевой основе |
| GB2361933A (en) * | 2000-05-06 | 2001-11-07 | British Nuclear Fuels Plc | Melting crucible made from a nickel-based alloy |
| WO2004067788A1 (de) * | 2003-01-25 | 2004-08-12 | Schmidt + Clemens Gmbh + Co. Kg | Hitze- und korrosionsbeständige nickel-chrom-grusslegierung |
| RU2256717C1 (ru) * | 2004-06-25 | 2005-07-20 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") | Жаропрочный свариваемый сплав на основе никеля и изделие, выполненное из него |
| WO2007004973A1 (en) | 2005-07-01 | 2007-01-11 | Sandvik Intellectual Property Ab | Ni-cr-fe alloy for high-temperature use. |
| EP2072627A1 (de) | 2007-12-12 | 2009-06-24 | Haynes International, Inc. | Schweißbare, rostbeständige Nickel-Eisen-Chrom-Aluminium-Legierung |
| WO2010059105A1 (en) * | 2008-11-19 | 2010-05-27 | Sandvik Intellectual Property Ab | Aluminium oxide forming nickel based alloy |
| US20110045362A1 (en) * | 2009-08-24 | 2011-02-24 | Staxera Gmbh | Oxidation-resistant composite conductor and manufacturing method for the composite conductor |
| EP1780295A4 (de) * | 2004-08-02 | 2012-04-04 | Sumitomo Metal Ind | Schweissverbindung und schweissmaterial davon |
| DE102012002514A1 (de) | 2011-02-23 | 2012-08-23 | Thyssenkrupp Vdm Gmbh | Nickel-Chrom-Eisen-Aluminium-Legierung mit guter Verarbeitbarkeit |
| DE102012011162A1 (de) | 2012-06-05 | 2013-12-05 | Outokumpu Vdm Gmbh | Nickel-Chrom-Legierung mit guter Verarbeitbarkeit, Kriechfestigkeit und Korrosionsbeständigkeit |
| WO2014023274A1 (de) | 2012-08-10 | 2014-02-13 | Outokumpu Vdm Gmbh | Verwendung einer nickel-chrom-eisen-aluminium-legierung mit guter verarbeitbarkeit |
| CN104827206A (zh) * | 2015-05-09 | 2015-08-12 | 芜湖鼎恒材料技术有限公司 | 一种Ni-Cr-Al纳米焊层及制备方法 |
| US9551051B2 (en) | 2007-12-12 | 2017-01-24 | Haynes International, Inc. | Weldable oxidation resistant nickel-iron-chromium aluminum alloy |
| US9657373B2 (en) | 2012-06-05 | 2017-05-23 | Vdm Metals International Gmbh | Nickel-chromium-aluminum alloy having good processability, creep resistance and corrosion resistance |
| DE102018107248A1 (de) | 2018-03-27 | 2019-10-02 | Vdm Metals International Gmbh | Verwendung einer nickel-chrom-eisen-aluminium-legierung |
| WO2021110217A1 (de) | 2019-12-06 | 2021-06-10 | Vdm Metals International Gmbh | Nickel-chrom-eisen-aluminium-legierung mit guter verarbeitbarkeit, kriechfestigkeit und korrosionsbeständigkeit sowie deren verwendung |
| CN114231795A (zh) * | 2021-12-23 | 2022-03-25 | 佛山市天禄智能装备科技有限公司 | 用于回转窑的耐高温合金的制备方法及回转窑窑体 |
| CN115717205A (zh) * | 2021-08-24 | 2023-02-28 | 深圳市卓亮迪科技有限公司 | 一种高温高电阻镍基合金及其制备方法 |
| CN118006968A (zh) * | 2024-04-08 | 2024-05-10 | 无锡市雪浪合金科技有限公司 | 一种镍基高温合金及其制备方法 |
| US12258654B2 (en) | 2019-12-06 | 2025-03-25 | Vdm Metals International Gmbh | Nickel-chromium-aluminum alloy with good processability, creep resistance, and corrosion resistance, and use thereof |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014001328B4 (de) * | 2014-02-04 | 2016-04-21 | VDM Metals GmbH | Aushärtende Nickel-Chrom-Eisen-Titan-Aluminium-Legierung mit guter Verschleißbeständigkeit, Kriechfestigkeit, Korrosionsbeständigkeit und Verarbeitbarkeit |
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| DE102015008322A1 (de) * | 2015-06-30 | 2017-01-05 | Vdm Metals International Gmbh | Verfahren zur Herstellung einer Nickel-Eisen-Chrom-Aluminium-Knetlegierung mit einer erhöhten Dehnung im Zugversuch |
| DE102015016729B4 (de) * | 2015-12-22 | 2018-10-31 | Vdm Metals International Gmbh | Verfahren zur Herstellung einer Nickel-Basislegierung |
| CN110527856B (zh) * | 2019-09-20 | 2021-04-30 | 无锡市东杨新材料股份有限公司 | 一种高表面质量、高强度镍合金带材的制备方法 |
| CN112921226B (zh) * | 2021-02-16 | 2022-05-17 | 河南工学院 | 一种用于镁铝系合金的Mg-AlN中间合金晶粒细化剂及其制备方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3511860A1 (de) * | 1984-04-03 | 1985-10-10 | Daido Tokushuko K.K., Nagoya, Aichi | Legierungen fuer auspuffventile |
| EP0251295A2 (de) * | 1986-07-03 | 1988-01-07 | Inco Alloys International, Inc. | Nickellegierung mit hohem Chromgehalt |
| EP0269973A2 (de) * | 1986-11-24 | 1988-06-08 | Inco Alloys International, Inc. | Gegen Zementierung beständige Legierung |
| EP0338574A1 (de) * | 1988-04-22 | 1989-10-25 | Inco Alloys International, Inc. | Sulfidierungs- und oxidationsbeständige Legierungen auf Nickelbasis |
| EP0508058A1 (de) * | 1991-04-11 | 1992-10-14 | Krupp VDM GmbH | Austenitische Nickel-Chrom-Eisen-Legierung |
-
1992
- 1992-12-18 AT AT92311611T patent/ATE123819T1/de not_active IP Right Cessation
- 1992-12-18 EP EP92311611A patent/EP0549286B1/de not_active Revoked
- 1992-12-18 ES ES92311611T patent/ES2073873T3/es not_active Expired - Lifetime
- 1992-12-18 DE DE69202965T patent/DE69202965T2/de not_active Revoked
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3511860A1 (de) * | 1984-04-03 | 1985-10-10 | Daido Tokushuko K.K., Nagoya, Aichi | Legierungen fuer auspuffventile |
| EP0251295A2 (de) * | 1986-07-03 | 1988-01-07 | Inco Alloys International, Inc. | Nickellegierung mit hohem Chromgehalt |
| EP0269973A2 (de) * | 1986-11-24 | 1988-06-08 | Inco Alloys International, Inc. | Gegen Zementierung beständige Legierung |
| EP0338574A1 (de) * | 1988-04-22 | 1989-10-25 | Inco Alloys International, Inc. | Sulfidierungs- und oxidationsbeständige Legierungen auf Nickelbasis |
| EP0508058A1 (de) * | 1991-04-11 | 1992-10-14 | Krupp VDM GmbH | Austenitische Nickel-Chrom-Eisen-Legierung |
Non-Patent Citations (2)
| Title |
|---|
| CHEMICAL ABSTRACTS, vol. 103 Columbus, Ohio, US; abstract no. 74949, 'Nickel alloy for automobile exhaust valves' * |
| CHEMICAL ABSTRACTS, vol. 76 Columbus, Ohio, US; abstract no. 103087, WIEGEL, K. ET AL. 'Effect of calcium and cerium on the oxidation behavior of nickel base alloys of high temperature strength' * |
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| EP0752481A1 (de) * | 1995-07-04 | 1997-01-08 | Krupp VDM GmbH | Knetbare Nickellegierung |
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| US5997809A (en) * | 1998-12-08 | 1999-12-07 | Inco Alloys International, Inc. | Alloys for high temperature service in aggressive environments |
| WO2000034541A1 (en) * | 1998-12-09 | 2000-06-15 | Inco Alloys International, Inc. | High strength alloy tailored for high temperature mixed-oxidant environments |
| US6287398B1 (en) | 1998-12-09 | 2001-09-11 | Inco Alloys International, Inc. | High strength alloy tailored for high temperature mixed-oxidant environments |
| RU2169783C2 (ru) * | 1999-06-02 | 2001-06-27 | ОАО "Научно-производственное объединение энергетического машиностроения им. акад. В.П. Глушко" | Жаропрочный свариваемый сплав на никелевой основе |
| GB2361933A (en) * | 2000-05-06 | 2001-11-07 | British Nuclear Fuels Plc | Melting crucible made from a nickel-based alloy |
| FR2808537A1 (fr) * | 2000-05-06 | 2001-11-09 | British Nuclear Fuels Plc | Creuset de fusion |
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| EA008522B1 (ru) * | 2003-01-25 | 2007-06-29 | Шмидт+Клеменс Гмбх+Ко. Кг | Жаропрочный и коррозионно-стойкий литейный хромоникелевый сплав |
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| RU2256717C1 (ru) * | 2004-06-25 | 2005-07-20 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") | Жаропрочный свариваемый сплав на основе никеля и изделие, выполненное из него |
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| WO2007004973A1 (en) | 2005-07-01 | 2007-01-11 | Sandvik Intellectual Property Ab | Ni-cr-fe alloy for high-temperature use. |
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| KR101322091B1 (ko) * | 2005-07-01 | 2013-10-25 | 산드빅 인터렉츄얼 프로퍼티 에이비 | 고온용 Ni-Cr-Fe 합금 |
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Also Published As
| Publication number | Publication date |
|---|---|
| ES2073873T3 (es) | 1995-08-16 |
| DE69202965T2 (de) | 1996-03-14 |
| ATE123819T1 (de) | 1995-06-15 |
| EP0549286B1 (de) | 1995-06-14 |
| DE69202965D1 (de) | 1995-07-20 |
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