EP1568795A1 - Hitzebeständige Superlegierung und ihre Verwendung - Google Patents
Hitzebeständige Superlegierung und ihre Verwendung Download PDFInfo
- Publication number
- EP1568795A1 EP1568795A1 EP04024768A EP04024768A EP1568795A1 EP 1568795 A1 EP1568795 A1 EP 1568795A1 EP 04024768 A EP04024768 A EP 04024768A EP 04024768 A EP04024768 A EP 04024768A EP 1568795 A1 EP1568795 A1 EP 1568795A1
- Authority
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- European Patent Office
- Prior art keywords
- weight
- content
- hafnium
- aluminum
- alloy
- 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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Links
- 229910000601 superalloy Inorganic materials 0.000 title claims abstract description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052735 hafnium Inorganic materials 0.000 claims abstract description 22
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000010936 titanium Substances 0.000 claims abstract description 21
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 17
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims abstract description 17
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 16
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 16
- 239000010955 niobium Substances 0.000 claims abstract description 15
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 12
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 11
- 239000011733 molybdenum Substances 0.000 claims abstract description 11
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 11
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 11
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 10
- 239000010937 tungsten Substances 0.000 claims abstract description 10
- 239000011651 chromium Substances 0.000 claims abstract description 8
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 8
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 7
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052796 boron Inorganic materials 0.000 claims abstract description 7
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 30
- 239000000956 alloy Substances 0.000 claims description 30
- 238000005266 casting Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 6
- 230000010355 oscillation Effects 0.000 description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 4
- 210000001787 dendrite Anatomy 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000005496 eutectics Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004881 precipitation hardening Methods 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
-
- 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
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/057—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being less 10%
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2203/00—Non-metallic inorganic materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
Definitions
- the present invention relates to a heat-resistant superalloy, in particular on such a nickel-based.
- Such alloys are used in turbines for the various components, but also used for other purposes, for example for parts of ovens and appliances to be installed in ovens.
- the invention relates also on a special use of this superalloy.
- alloys for similar purposes are known in numerous forms, such as from U.S. Pat. Patent Nos. 3,466,171; 4,236,921 or 5,439,640.
- On The market also has the name MAR 247 LC on the market Alloy is especially for achieving higher vibration resistance on turbine wheels used and consists of eleven elements, including a large proportion of Cobalt, but also a relatively large proportion of tantalum and hafnium is located. This makes This alloy is relatively inexpensive.
- this alloy has no cobalt and only small amounts of tantalum and Hafnium and is therefore cheaper than before. It allows a directional Solidification, is resistant to breaking the grain boundaries during casting, is Also suitable for thin wall thicknesses and shows - compared to the prior art - an improved carbide microstructure, improved carbide stability, and - as well especially important - a relatively high ductility. This should include the traces of tantalum in any case less than 2% by weight, preferably less than 1.5% by weight, in particular less than 1 Wt .-%.
- the ⁇ '-formation Ni3 is due to the proportions of aluminum and titanium, which preferably together make up a proportion of> 7 wt .-%.
- the proportion of aluminum serves a dual purpose, namely on the one hand to form the ⁇ '-phase of nickel and on the other hand to obtain a long-term corrosion protection, because it forms a protective layer of Al 2 O 3 on the surface, which at high temperatures, in particular of the Turbocharger of a turbocharger driving exhaust gas, is particularly effective.
- the elements Ti, Nb and Al are responsible for the precipitation hardening and the intermetallic compound, the latter being particularly dense in the alloy according to the invention. These three elements together should therefore preferably together have a content greater than 9.5 wt .-%.
- the precipitation hardening achieves a higher level of nominal strength, so that the material matrix has to endure less plastic than elastic thermodynamic oscillation amplitudes and thus also achieves a higher resistance to vibration.
- the general microstructural effect of the invention is only small Ti content is the size of the formation of eutectic needles (dendrites) of the reduced ⁇ / ⁇ '-phases and the volume fraction in the eutectic. This, in turn, is very significant for the reduction of grain boundary fractures.
- hafnium and lanthanum contribute to this.
- hafnium and lanthanum which in this case has a multiple and synergetic function
- the content of hafnium and lanthanum together amounts to a maximum of 0.7% by weight.
- the lanthanum content will be at least 0.0035 wt .-% and will advantageously not exceed 0.015 wt .-%, preferably not more than 0.01 wt .-%.
- the hafnium content should be at least 0.3% by weight and advantageously at most 0.7% by weight, preferably at most 0.6% by weight.
- Elements B and Zr improve creep resistance, creep rupture strength and creep resistance Ductility (to which several elements of this alloy contribute) by grain boundary cohesion. Both elements prevent the formation of carbide films on the grain boundaries. However, these elements are only to be introduced in such tracks to the grain boundaries saturate. Therefore, it is preferable that the content of boron is between 0.01 and 0.035 Wt .-% and / or the content of zirconium is between 0.02 and 0.08 wt .-%.
- the element niobium is the aluminum in Substituted the ⁇ 'phase and thereby increases the ⁇ ' portion in a desired manner. Now it will but the fatigue at low duty cycle ("low-cycle fatigue") is greatly affected by the fineness the ⁇ '-phase, and it is now the element niobium, which is a ⁇ '-coarsening counteracts very effectively. For this purpose, this element plays in the matrix according to the invention also the role of a Mischkristalltruckners.
- FIG. 1 shows a microsection of an alloy according to Example 1 discussed later.
- the surface of the alloy with the corrosion-protective Al 2 O 3 layer is not visible in this figure.
- the ⁇ '-phase which in dense almost oblong hexagonal crystallites with surprisingly low mutual dislocation and directional solidification for an extremely high strength and low fatigue at low cycle fatigue (“low-cycle fatigue) ensured Breaking grain boundaries during casting and is also suitable for thin wall thicknesses, as they are particularly required for the rotor blades of turbine rotors, in particular a high-temperature turbine as in a turbocharger.Eutectic needles (dendrites) of ⁇ / ⁇ '-phase are in not recognizable at all in this picture.
- the grain boundaries show edges which can be seen more clearly from FIG (10 times magnification), just as thin a layer of predominantly titanium, tantalum, Hafnium and lanthanum, that - as can be seen - the grain surface is just covered.
- This has two major advantages, on the one hand, the proportion of the latter, expensive Elements are kept very low, on the other hand cause, as already mentioned, the Elements hafnium and lanthanum an absolute increase in ductility or cohesion / adhesion ratios at the grain boundaries of the matrix, where they possibly together with the molybdenum content, acting as a "lubricant" at the grain boundaries, which allows a good ductility, but ultimately also contributes to low fatigue.
- Fig. 2 makes it clear why the mentioned elements according to the invention in such small Quantities are available.
- this alloy has a total content of tungsten and molybdenum of 15 wt .-% and had a total content of aluminum and titanium of 8 wt .-%, the sum of the Contents of titanium, niobium and aluminum 10 wt .-% made.
- the content of hafnium and lanthanum accordingly made up 0.41% by weight, well below the maximum Content and even below the preferred maximum value of 0.7 wt .-%.
- the corrosion resistance was tested in a hot gas test and this showed a micrograph under the scanning electron microscope with a clear aluminum layer on the surface, which oxidized to Al 2 O 3 and thus provided a corrosion protection layer. This micrograph also clearly indicated the saturation of the grain boundaries by boron and zirconium. There was no formation of significant dendrites or columnar crystals, but a rather uniform grain was found, as one might wish (see Fig. 1)
- a second alloy having the following composition (in% by weight) was used to form the remainder of nickel: C Cr al Ti Not a word W Nb B Zr Hf La 0.09 9.5 5.5 2.5 2 13 1.75 0,025 0.08 0.45 0.005
- Example 1 The thus-formed alloy was then subjected to the same tests as in Example 1, the elasticity was slightly improved over Example 1.
- a third alloy having the following composition (in% by weight) was used to form the remainder of nickel: C Cr al Ti Not a word W Nb B Zr Hf La Ta 0.12 8.5 4.5 3.5 2.75 11.5 2.3 0.01 0.03 0.6 0,004 0.6
- this alloy thus a total content of hafnium and lanthanum of 0.604 wt .-% had a total content of tungsten and molybdenum of 15% by weight and a total content of aluminum and titanium of 8% by weight, the sum of the contents of titanium, Niobium and aluminum 10 wt .-% made.
- Example 1 The tests carried out as in Example 1 gave a slightly increased ductility. When but then a long-term test in a corrosive atmosphere (combustion gases of a Gasoline engine at about 900 ° C) was compared to a similar one Testing the samples of Examples 1 and 2 a somewhat reduced corrosion resistance.
- this alloy gave a nickel content of 67.45 wt .-%. It should be noted that thus, this alloy had a total content of hafnium and lanthanum of 0.82 wt .-%, a total content of tungsten and molybdenum of 12 wt .-% and a total content of aluminum and titanium of 8 wt .-%, wherein the sum of the contents of titanium, niobium and aluminum was 9.5% by weight. Again, one had to add tantalum waived.
- Turbine rotors for turbochargers have also been made from the alloys of the above examples which was first for 8 hours solution heat treatment at 1200 ° C and then a precipitation hardening at 860 ° C for 16 hours, each time with following Air cooling underwent. All test rotors were subjected to a long-term test and proved to be above expectations.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Supercharger (AREA)
Abstract
Description
- Kohlenstoff 0,01 - 0,2 Gew.-%
- Chrom 8 -10 Gew.-%
- Aluminium 4 - 6 Gew.-%
- Titan 2 - 4 Gew.-%
- Molybdän 1,5 - 2,8 Gew.-%
- Wolfram 10 -13,5 Gew.-%
- Niob 1,5 - 2,5 Gew.-%
- Bor 0 < B ≤ 0,04 Gew.-%
- Zirkonium 0 < Zr≤ 0,15 Gew.-%
- der Gehalt an Hafnium und Lanthan zusammen beträgt 0 < Hf + La ≤ 1,5 Gew.-%,
- gegebenenfalls Spuren von Tantal,
- wobei der Rest Nickel ist.
| C | Cr | Al | Ti | Mo | W | Nb | B | Zr | Hf | La | Ta |
| 0,1 | 9 | 5 | 3 | 2,5 | 12,5 | 2 | 0,02 | 0,05 | 0,4 | 0,01 | 0,2 |
- Temp.:
- 500°C; Schwingspielzahl 103 × 103 : minimal 305 N/mm2 Schwingamplitudenspannung;
- Temp.:
- 750°C; Schwingspielzahl 103 × 103 : minimal 360 N/mm2 Schwingamplitudenspannung;
- Temp.:
- 900°C, Schwingspielzahl 103 × 103 : minimal 380 N/mm2 Schwingamplitudenspannung.
| C | Cr | Al | Ti | Mo | W | Nb | B | Zr | Hf | La |
| 0,09 | 9,5 | 5,5 | 2,5 | 2 | 13 | 1,75 | 0,025 | 0,08 | 0,45 | 0,005 |
| C | Cr | Al | Ti | Mo | W | Nb | B | Zr | Hf | La | Ta |
| 0,12 | 8,5 | 4,5 | 3,5 | 2,75 | 11,5 | 2,3 | 0,01 | 0,03 | 0,6 | 0,004 | 0,6 |
| C | Cr | Al | Ti | Mo | W | Nb | B | Zr | Hf | La |
| 0,18 | 10,0 | 6 | 2 | 1,5 | 10,5 | 1,5 | 0,03 | 0,02 | 0,8 | 0,02 |
Claims (10)
- Hitzebeständige Superlegierung, welche folgenden Bedingungen genügt:Kohlenstoff 0,01 - 0,2 Gew.-%Chrom 8 -10 Gew.-%Aluminium 4 - 6 Gew.-%Titan 2 - 4 Gew.-%Molybdän 1,5 - 2,8 Gew.-%Wolfram 10 -13,5 Gew.-%Niob 1,5 - 2,5 Gew.-%Bor 0 < B ≤ 0,04 Gew.-%Zirkonium 0 < Zr≤ 0,15 Gew.-%,der Gehalt an Hafnium und Lanthan zusammen beträgt 0 < Hf + La ≤ 1,5 Gew.-%,gegebenenfalls Spuren von Tantal,wobei der Rest Nickel ist.
- Superlegierung nach Anspruch 1, dadurch gekennzeichnet, daß der Gehalt an Bor wenigstens einer der folgenden Bedingungen genügt:(a) er beträgt wenigstens 0,01 Gew.-%;(b) er beträgt maximal 0,035 Gew.-%.
- Superlegierung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Gehalt an Zirkonium wenigstens einer der folgenden Bedingungen genügt:(a) er beträgt wenigstens 0,02 Gew.-%;(b) er beträgt maximal 0,08 Gew.-%.
- Superlegierung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Gehalt an Lanthan wenigstens einer der folgenden Bedingungen genügt:(a) er beträgt wenigstens 0,0035 Gew.-%;(b) er beträgt maximal 0,015 Gew.-%, vorzugsweiwe maximal 0,01 Gew.-%.
- Superlegierung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Gehalt an Hafnium und Lanthan zusammen maximal 0,7 Gew.-% beträgt, wobei vorzugsweise folgende Zusatzbedingungen erfüllt sind:a) der Gehalt an Hafnium beträgt mindestens 0,3 Gew.-%;b) der Gehalt an Hafnium beträgt maximal 0,7 Gew.-%, vorzugsweise maximal 0,6 Gew.-%.
- Superlegierung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Gehalt an Wolfram und Molybdän zusammen größer oder gleich 14 Gew.-% ist.
- Superlegierung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Gehalt an Aluminium und Titan zusammen größer oder gleich 7 Gew.-% ist.
- Superlegierung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Gehalt an Titan, Niob und Aluminium zusammen größer oder gleich 9,5 Gew.-% ist.
- Superlegierung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Gehalt an Tantal unter 2 Gew.-% liegt, vorzugsweise unter 1,5 Gew.-%, insbesondere unter 1 Gew.-%.
- Verwendung einer Legierung nach einem der vorhergehenden Ansprüche zum Giessen eines Turbinenrades, insbesondere eines Turboladers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20040024768 EP1568795B1 (de) | 2003-11-20 | 2004-10-18 | Hitzebeständige Superlegierung und ihre Verwendung |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03026683 | 2003-11-20 | ||
| EP03026683 | 2003-11-20 | ||
| EP20040024768 EP1568795B1 (de) | 2003-11-20 | 2004-10-18 | Hitzebeständige Superlegierung und ihre Verwendung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1568795A1 true EP1568795A1 (de) | 2005-08-31 |
| EP1568795B1 EP1568795B1 (de) | 2008-04-30 |
Family
ID=34717191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20040024768 Expired - Lifetime EP1568795B1 (de) | 2003-11-20 | 2004-10-18 | Hitzebeständige Superlegierung und ihre Verwendung |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US20050238526A1 (de) |
| EP (1) | EP1568795B1 (de) |
| JP (1) | JP4583894B2 (de) |
| DE (1) | DE502004006994D1 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007040464A1 (en) * | 2005-09-15 | 2007-04-12 | Grede Foundries, Inc. | High silicon niobium casting alloy and process for producing the same |
| US7824606B2 (en) * | 2006-09-21 | 2010-11-02 | Honeywell International Inc. | Nickel-based alloys and articles made therefrom |
| US8118556B2 (en) | 2007-01-31 | 2012-02-21 | Caterpillar Inc. | Compressor wheel for a turbocharger system |
| WO2010036532A2 (en) * | 2008-09-25 | 2010-04-01 | Borgwarner Inc. | Turbocharger and subassembly for bypass control in the turbine casing therefor |
| US8858873B2 (en) | 2012-11-13 | 2014-10-14 | Honeywell International Inc. | Nickel-based superalloys for use on turbine blades |
| DE102013210990A1 (de) * | 2013-06-13 | 2014-12-18 | Continental Automotive Gmbh | Abgasturbolader mit einem Radial-Axial-Turbinenrad |
| KR101669440B1 (ko) * | 2014-12-24 | 2016-10-26 | 재단법인 포항산업과학연구원 | 니켈 크롬계 리본 섬유 및 그 제조방법 |
| EP3585419A4 (de) * | 2017-02-24 | 2020-12-23 | The Board of Regents of The University of Texas System | Zusammensetzungen und verfahren im zusammenhang mit der myomixer-vermittelten muskelzellenfusion |
| US10933469B2 (en) | 2018-09-10 | 2021-03-02 | Honeywell International Inc. | Method of forming an abrasive nickel-based alloy on a turbine blade tip |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11131162A (ja) * | 1997-10-27 | 1999-05-18 | Hitachi Metals Ltd | Ni基超耐熱鋳造合金およびNi基超耐熱合金製タービンホイール |
| JP2002294374A (ja) * | 2001-04-04 | 2002-10-09 | Hitachi Metals Ltd | Ni基超耐熱鋳造合金およびNi基超耐熱合金製タービンホイール |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3888663A (en) * | 1972-10-27 | 1975-06-10 | Federal Mogul Corp | Metal powder sintering process |
| US4078951A (en) * | 1976-03-31 | 1978-03-14 | University Patents, Inc. | Method of improving fatigue life of cast nickel based superalloys and composition |
| US4907947A (en) * | 1988-07-29 | 1990-03-13 | Allied-Signal Inc. | Heat treatment for dual alloy turbine wheels |
-
2004
- 2004-10-18 EP EP20040024768 patent/EP1568795B1/de not_active Expired - Lifetime
- 2004-10-18 DE DE200450006994 patent/DE502004006994D1/de not_active Expired - Lifetime
- 2004-11-22 US US10/995,993 patent/US20050238526A1/en not_active Abandoned
- 2004-11-22 JP JP2004337379A patent/JP4583894B2/ja not_active Expired - Fee Related
-
2008
- 2008-04-17 US US12/105,024 patent/US9051844B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11131162A (ja) * | 1997-10-27 | 1999-05-18 | Hitachi Metals Ltd | Ni基超耐熱鋳造合金およびNi基超耐熱合金製タービンホイール |
| JP2002294374A (ja) * | 2001-04-04 | 2002-10-09 | Hitachi Metals Ltd | Ni基超耐熱鋳造合金およびNi基超耐熱合金製タービンホイール |
Non-Patent Citations (2)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 1999, no. 10 31 August 1999 (1999-08-31) * |
| PATENT ABSTRACTS OF JAPAN vol. 2003, no. 02 5 February 2003 (2003-02-05) * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE502004006994D1 (de) | 2008-06-12 |
| US20080271822A1 (en) | 2008-11-06 |
| JP2005171384A (ja) | 2005-06-30 |
| US20050238526A1 (en) | 2005-10-27 |
| JP4583894B2 (ja) | 2010-11-17 |
| US9051844B2 (en) | 2015-06-09 |
| EP1568795B1 (de) | 2008-04-30 |
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