EP3990672A1 - Procédé de fabrication d'une pièce en superalliage monocristallin - Google Patents
Procédé de fabrication d'une pièce en superalliage monocristallinInfo
- Publication number
- EP3990672A1 EP3990672A1 EP20734082.9A EP20734082A EP3990672A1 EP 3990672 A1 EP3990672 A1 EP 3990672A1 EP 20734082 A EP20734082 A EP 20734082A EP 3990672 A1 EP3990672 A1 EP 3990672A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature
- superalloy
- homogenization
- phase
- heat treatment
- 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.)
- Pending
Links
- 229910000601 superalloy Inorganic materials 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 23
- 239000000758 substrate Substances 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims abstract description 10
- 230000008018 melting Effects 0.000 claims abstract description 9
- 238000002844 melting Methods 0.000 claims abstract description 9
- 238000000265 homogenisation Methods 0.000 claims description 28
- 239000010936 titanium Substances 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- 229910052750 molybdenum Inorganic materials 0.000 claims description 8
- 229910052715 tantalum Inorganic materials 0.000 claims description 8
- 229910052719 titanium Inorganic materials 0.000 claims description 8
- 229910052721 tungsten Inorganic materials 0.000 claims description 8
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 239000011651 chromium Substances 0.000 claims description 7
- 239000010941 cobalt Substances 0.000 claims description 7
- 229910017052 cobalt Inorganic materials 0.000 claims description 7
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000011733 molybdenum Substances 0.000 claims description 6
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 6
- 239000010937 tungsten Substances 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 229910052702 rhenium Inorganic materials 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 3
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 238000005496 tempering Methods 0.000 abstract description 15
- 230000035882 stress Effects 0.000 description 16
- 239000002244 precipitate Substances 0.000 description 10
- 239000011159 matrix material Substances 0.000 description 7
- 238000001953 recrystallisation Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 238000011282 treatment Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 210000001787 dendrite Anatomy 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003763 resistance to breakage Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/78—Combined heat-treatments not provided for above
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- 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%
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/10—Inorganic compounds or compositions
- C30B29/52—Alloys
Definitions
- TITLE PROCESS FOR MANUFACTURING A PART IN SUPERALLY
- the present invention relates to an aircraft part, such as a turbine blade or a nozzle vane, as well as to a method of manufacturing such a part.
- Materials made from nickel-based monocrystalline superalloys exhibit mechanical properties that allow them to resist creep at high temperatures, for example above 900 ° C, and particularly high oxidation resistance compared to other metal alloys.
- the monocrystalline superalloy is used for the manufacture of many turbomachine parts, such as turbine blades.
- the manufacture of monocrystalline superalloy parts comprises, in a known manner, a part foundry step, during which the superalloy in liquid form is poured into a ceramic mold, formed beforehand by molten wax.
- the microstructure of the as-cast alloy exhibits numerous chemical heterogeneities. Indeed, the solidification of the alloy does not take place by flat growth, but by dendritic growth. Thus, the heart, the different layers of the dendrites and the interdendritic zones do not have the same chemical composition, because their solidification took place successively.
- the Y'-genes for example Al, Ta and Ti
- segregate in the liquid metal differently from W or Mo which are in high concentration in the heart of the dendrites.
- Dissolution can be either partial, that is to say subsolvus, for example by treating the part at a temperature below 50 ° C than the temperature of the solvus of the superalloy. Dissolution can also be complete, supersolvus, for example by treating the part at a temperature close to the solvus of g ′, for example 50 ° C higher than the temperature of the solvus of Y ’.
- the solution temperature 51 is between the solvus and the solidus, for example at 1300 ° C. At this temperature, clusters of eutectics dissolve, allowing better distribution of phase g ', while remaining below the melting point of the alloy. However, the size, distribution, and morphology of the g 'phase precipitates do not optimize the part's creep resistance.
- the part is treated, after placing in solution, with a first tempering R1, at 1,100 ° C. for five hours. This treatment makes it possible to optimize the size, the morphology and the distribution of the precipitates g ′.
- the part is treated, after the first tempering R1, with a second tempering R2, at 870 ° C., for 16 hours.
- the second tempering R2 makes it possible to increase the volume fraction of the phase g ′ of the superalloy.
- the superalloy AM1 comprises cubic precipitates g 'distributed in a homogeneous and aligned manner.
- the part in monocrystalline superalloy may, during its manufacture, undergo a deformation, and in particular a plastic deformation D1, at low temperature.
- a deformation can be caused, for example, by the action of the casting mold on the part during demolding, by a local concentration of mechanical stresses during the cooling process of the part due to a cooling rate gradient local, by the assembly of the part to another module, or by an unexpected shock when handling the part.
- a plastic deformation is intentionally applied to the part in order to straighten it.
- the plastic deformation D1 applied to the part causes a defect in the microstructure of the part. If the part is placed, following plastic deformation D1, in a high temperature atmosphere, for example above 900 ° C, the defect can lead to a modification of the crystalline structure of the part. This recrystallization can lead to a reduction in the life of the part under working conditions.
- Figure 3 and Figure 4 are photomicrographs showing the structure of a superalloy after undergoing plastic deformation D1. Bands revealing the evolution of the microstructure caused by the plastic deformation D1 are visible.
- the scale in Figure 3 corresponds to a length of 100 ⁇ m.
- the scale in Figure 4 corresponds to a length of 10 ⁇ m.
- An object of the invention is to provide a solution to prevent recrystallization of a nickel-based superalloy part following a plastic deformation undergone by the part.
- the strain can be evenly distributed throughout the part before the first income.
- recrystallization can be avoided during tempering.
- the invention is advantageously supplemented by the following characteristics, taken individually or in any of their
- the superalloy is predominantly composed of nickel and has a mass fraction of chromium between 7% and 9%, cobalt between 5.5% and 7.5%, aluminum between 4% and 6%, titanium between between 1% and 2%, tantalum between 7% and 9%, molybdenum between 1% and 3%, tungsten between 4.5% and 6.5%, the superalloy also comprising carbon and zirconium ,
- the superalloy is mainly composed of nickel and preferably has a mass fraction of chromium between 2.5% and 4.5%, cobalt between 9% and 11%, aluminum between 4.5% and 6, 5%, titanium between 0.5% and 1%, tantalum between 7% and 9%, molybdenum between 0.3% and 1%, tungsten between 5% and 7%, rhenium between between 4% and 5.5%.
- the homogenization of the crystalline structure of the part is implemented by heat treatment of the part at a second temperature T 2 greater than the solvus temperature of phase g 'and strictly lower than the first temperature T
- the homogenization is carried out by the heat treatment of the part at a second temperature T 2 for at least 10 minutes, in particular for 20 minutes, and preferably for one hour,
- the second temperature T 2 is strictly between 1280 C and 1350 ° C, in particular between 1280 ° C and 1300 ° C and preferably between 1285 ° C and 1295 ° C,
- the molding step is followed by a demolding step, and the step of homogenizing the crystalline structure of the part is carried out after the demolding step,
- the homogenization of the crystalline structure of the part is implemented by a heat treatment of the part at a temperature T between 800 ° C and 1000 ° C, a tensile stress being applied to the part during the heat treatment at the temperature T 3 so as to cause plastic deformation of the part,
- the application of the tensile stress is oriented in a direction of traction, and is removed as soon as the length of the part in the direction of tension is greater than 1.008 times the initial length of the part in the direction of traction,
- the first tempering is implemented at a fourth temperature T of between 1000 ° C and 1200 ° C for at least 3 hours
- the second tempering is implemented at a fifth temperature T 5 of between 800 ° C and 900 ° C at least for 10 hours.
- FIG. 2 illustrates a process for manufacturing the nickel-based superalloy AM1 of the prior art
- FIG. 3 is a photomicrograph of a section of a superalloy according to the prior art
- FIG. 4 is a photomicrograph of a section of the prior art superalloy, the scale bar corresponding to a length of 100 miti,
- FIG. 5 illustrates a method of manufacturing the nickel-based superalloy AM1 according to one embodiment of the invention in which the homogenization of the crystalline structure of the part is implemented by a heat treatment of the part at a second temperature T 2 higher than the solvus temperature of phase y 'and strictly lower than the first temperature T 1 f the scale bar corresponding to a length of 10 miti,
- FIG. 6 illustrates a method of manufacturing the nickel-based superalloy AM1 according to one embodiment of the invention in which the homogenization of the crystalline structure of the part is implemented by a heat treatment of the part at a temperature T 3 between 800 ° C and 1000 ° C, a tensile stress being applied to the part during the heat treatment at temperature T 3 so as to cause plastic deformation of the part,
- FIG. 7 is a photomicrograph of a section of a superalloy according to an embodiment of the invention, the scale bar corresponding to a length of 1 ⁇ m,
- FIG. 8 is a photomicrograph of a section of superalloy according to one embodiment of the invention, the scale bar corresponding to a length of 100 miti,
- FIG. 9 is a photomicrograph of a section of superalloy according to one embodiment of the invention, the scale bar corresponding to a length of 10 miti, [Fig. 10] - Figure 10 illustrates the flow of parts according to different embodiments of the invention.
- alloy denotes an alloy exhibiting, at high temperature and at high pressure, very good resistance to oxidation, corrosion, creep and cyclic stresses (in particular mechanical or thermal).
- a superalloy can have a two-phase microstructure comprising a first phase (called “y phase”) forming a matrix, and a second phase (called “y phase”) forming precipitates hardening in the matrix.
- the coexistence of these two phases is referred to as the y-y ’phase.
- the "base” of the superalloy refers to the main metal component of the matrix. In most cases, superalloys include a cobalt or nickel base. The base of the superalloy is preferably a nickel base.
- Nickel-based superalloys have the advantage of offering a good compromise between resistance to oxidation, resistance to breakage at high temperature and weight, which justifies their use in the hottest parts of turbojets.
- the phase y ' has an ordered L12 structure, derived from the face-centered cubic structure, consistent with the matrix, that is to say having an atomic lattice very close to the latter. Due to its ordered character, the y 'phase has the remarkable property of having a mechanical resistance which increases with temperature up to 800 ° C approximately.
- the very strong coherence between phases g and g 'confers a very high mechanical resistance to hot nickel-based superalloys, which itself depends on the ratio g / g' and on the size of the hardening precipitates.
- mass fraction refers to the ratio of the mass of an element or a group of elements to the total mass.
- the aircraft part includes a single crystal nickel base superalloy substrate.
- the superalloy chosen can be mainly composed of nickel and preferably have a mass fraction of chromium between 7% and 9%, cobalt between 5.5% and 7.5%, aluminum between 4% and 6%, titanium between 1% and 2%, tantalum between 7% and 9%, molybdenum between 1% and 3%, tungsten between 4.5% and 6.5%, the superalloy also comprising carbon and zirconium.
- the superalloy called “AM1” registered trademark
- a method of manufacturing a part comprises a step of molding the part at a temperature above the melting temperature of the superalloy.
- the method comprises, after the molding step, a solution S1 of the part.
- the part is dissolved at a temperature T.
- the temperature 7 ⁇ is between the solvus temperature of phase y 'and the melting temperature of the superalloy.
- the solution allows the diffusion of the elements of the superalloy in the substrate of the part. The concentration of the various elements in the substrate is thus homogenized.
- the part is then cooled to room temperature at a controlled rate.
- the part can then be removed from the mold. For example, it is possible to break the mold using vibrations. Demoulding can lead to a high local concentration of stresses on the part, these stresses leading to plastic deformation D1.
- the part can undergo plastic deformation D1 by other means, such as joining the part to another part, handling or moving the part.
- the plastic deformation D1 can be unintentional.
- a step of homogenization S2 of the crystalline structure of the part is implemented following the plastic deformation (s) undergone by the part.
- the homogenization S2 can be implemented by a heat treatment of the part at a second temperature T 2 higher than the solvus temperature of phase g ′ and strictly lower than the first temperature Ti.
- T 2 higher than the solvus temperature of phase g ′ and strictly lower than the first temperature Ti.
- the temperature corresponding to the solvus of the superalloy decreases after the solution S1.
- the upper limit of the second temperature T 2 makes it possible to avoid recrystallization of the substrate during homogenization 52.
- the temperature is high enough to reduce the internal stresses caused by the plastic deformation in an efficient manner.
- the lower limit of the temperature T 2 makes it possible to avoid recrystallization of the substrate during one or more subsequent tempering and during the homogenization S2.
- the second temperature T 2 is preferably strictly between 128CT C and 1350 ° C, in particular between 128CT C and 130CT C, and preferably between 1285 ° C and 1295T.
- the second temperature T 2 can be between 1330 ° C and 1335 ° C.
- the homogenization S2 is carried out by the heat treatment of the part at a second temperature T 2 for at least 10 minutes, in particular for 20 minutes, and preferably for one hour.
- the homogenization treatment time S2 is adapted to the kinetics of the homogenization reaction S2 in the substrate of the part.
- the S2 homogenization of the crystalline structure of the part can be implemented by a heat treatment of the part at a third temperature T 3 between 800 ° C and 1000 ° C, a tensile stress being applied to the part during the heat treatment at the third temperature T 3 so as to cause plastic deformation of the part.
- the plastic deformation is intentional.
- the combined effect of the heat treatment carried out at the third temperature and of the tensile stress makes it possible to produce homogeneous dislocations at the interfaces of the matrix g and the precipitates g '.
- the effect of plastic deformation in the microstructure is no longer visible after S2 homogenization.
- the S2 homogenization eliminates the trace of stresses located in the substrate.
- the microstructure of the superalloy directly after homogenization 52 shows precipitates of g ’into cuboids.
- the part is cooled to room temperature.
- a first tempering R1 at a fourth temperature T 4 of between 1000 ° C and 120CT C for at least 3 hours, and a second tempering R2 at a fifth temperature T 5 of between 80CTC and 90CT C for at least 10 hours are then put into operation.
- artwork These treatments make it possible to optimize the size, the morphology and the distribution of the precipitates g ', as well as their volume fraction.
- the tensile stress is preferentially applied to the part so that the strain rate is less than 10 3 s ⁇ 1 at any point of the part.
- the strain rate is less than 10 3 s ⁇ 1 at any point of the part.
- the homogenization S2 comprises a heat treatment of the part at a third temperature T 3 of between 800 ° C and 1000 ° C and a tensile stress
- the form of precipitates g after the income is different from the known cuboid shape of the AM1 superalloy.
- Figure 10 illustrates a creep test.
- Curve (a) corresponds to a measurement of the elongation of a known part, which has not undergone plastic deformation.
- Curve (b) corresponds to a measurement of the elongation of a known part which has undergone plastic deformation.
- Curve (c) corresponds to a measurement of the elongation of a part manufactured by a method according to one embodiment of the invention, the method comprising a step of homogenization S2 of the crystalline structure of the part used.
- the curve (d) corresponds to a measurement of the elongation of a part manufactured by a method according to one embodiment of the invention, the method comprising a step of homogenization S2 of the crystalline structure of the part implemented by a heat treatment of the part at a third temperature T of between 800 ° C. and 1000 ° C, a tensile stress being applied to the part during the heat treatment at temperature T 3 so as to cause plastic deformation of the part.
- the plastic deformation of the part corresponding to curve (b) reduces the life of the part due to recrystallization during creep.
- the creep time of the part corresponding to the curve (c) is greater than that of the part corresponding to the model (a).
- the creep time of the part corresponding to curve (d) is 85% of that of the part corresponding to model (a).
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Inorganic Chemistry (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1907174A FR3097879B1 (fr) | 2019-06-28 | 2019-06-28 | Procede de fabrication d’une piece en superalliage monocristallin |
PCT/EP2020/068115 WO2020260645A1 (fr) | 2019-06-28 | 2020-06-26 | Procédé de fabrication d'une pièce en superalliage monocristallin |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3990672A1 true EP3990672A1 (fr) | 2022-05-04 |
Family
ID=68733174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20734082.9A Pending EP3990672A1 (fr) | 2019-06-28 | 2020-06-26 | Procédé de fabrication d'une pièce en superalliage monocristallin |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220243312A1 (fr) |
EP (1) | EP3990672A1 (fr) |
CN (1) | CN114080467B (fr) |
FR (1) | FR3097879B1 (fr) |
WO (1) | WO2020260645A1 (fr) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH616960A5 (en) * | 1976-02-25 | 1980-04-30 | Sulzer Ag | Components resistant to high-temperature corrosion. |
FR2503188A1 (fr) * | 1981-04-03 | 1982-10-08 | Onera (Off Nat Aerospatiale) | Superalliage monocristallin a matrice a matuice a base de nickel, procede d'amelioration de pieces en ce superalliage et pieces obtenues par ce procede |
CA1253363A (fr) * | 1986-02-21 | 1989-05-02 | Keh-Minn Chang | Super-alliages a base de nickel resistants a la fatigue |
CA1315572C (fr) * | 1986-05-13 | 1993-04-06 | Xuan Nguyen-Dinh | Materiaux monocristallins a phase stable |
FR2780982B1 (fr) * | 1998-07-07 | 2000-09-08 | Onera (Off Nat Aerospatiale) | Superalliage monocristallin a base de nickel a haut solvus |
DE60035052T2 (de) * | 2000-11-30 | 2008-01-24 | ONERA (Office National d'Etudes et de Recherches Aérospatiales) | Superlegierung auf Nickelbasis für Einkristallturbinenschaufeln von industriellen Turbinen mit hoher Beständigkeit gegen Heisskorrosion |
EP1398393A1 (fr) * | 2002-09-16 | 2004-03-17 | ALSTOM (Switzerland) Ltd | Méthode de régenération des propriétés |
JP5024797B2 (ja) * | 2005-03-28 | 2012-09-12 | 独立行政法人物質・材料研究機構 | コバルトフリーのNi基超合金 |
US20130142637A1 (en) * | 2011-12-06 | 2013-06-06 | Kenneth Harris | Low rhenium single crystal superalloy for turbine blades and vane applications |
FR3073527B1 (fr) * | 2017-11-14 | 2019-11-29 | Safran | Superalliage a base de nickel, aube monocristalline et turbomachine |
-
2019
- 2019-06-28 FR FR1907174A patent/FR3097879B1/fr active Active
-
2020
- 2020-06-26 CN CN202080047548.5A patent/CN114080467B/zh active Active
- 2020-06-26 WO PCT/EP2020/068115 patent/WO2020260645A1/fr unknown
- 2020-06-26 EP EP20734082.9A patent/EP3990672A1/fr active Pending
- 2020-06-26 US US17/622,963 patent/US20220243312A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
CN114080467B (zh) | 2022-12-16 |
WO2020260645A1 (fr) | 2020-12-30 |
CN114080467A (zh) | 2022-02-22 |
US20220243312A1 (en) | 2022-08-04 |
FR3097879A1 (fr) | 2021-01-01 |
FR3097879B1 (fr) | 2021-05-28 |
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