EP2051829A1 - Procédé de fabrication ou de réparation de composants de turbines ou de moteurs ainsi que composant, à savoir composant de turbine ou de moteur - Google Patents

Procédé de fabrication ou de réparation de composants de turbines ou de moteurs ainsi que composant, à savoir composant de turbine ou de moteur

Info

Publication number
EP2051829A1
EP2051829A1 EP07722486A EP07722486A EP2051829A1 EP 2051829 A1 EP2051829 A1 EP 2051829A1 EP 07722486 A EP07722486 A EP 07722486A EP 07722486 A EP07722486 A EP 07722486A EP 2051829 A1 EP2051829 A1 EP 2051829A1
Authority
EP
European Patent Office
Prior art keywords
solder
temperature
turbine
component
engine
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.)
Ceased
Application number
EP07722486A
Other languages
German (de)
English (en)
Inventor
Andreas Vossberg
Hans Joachim RÖSLER
Sebastian Piegert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MTU Aero Engines AG
Original Assignee
MTU Aero Engines GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MTU Aero Engines GmbH filed Critical MTU Aero Engines GmbH
Publication of EP2051829A1 publication Critical patent/EP2051829A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B23K1/0018—Brazing of turbine parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P6/00—Restoring or reconditioning objects
    • B23P6/002—Repairing turbine components, e.g. moving or stationary blades, rotors
    • B23P6/007—Repairing turbine components, e.g. moving or stationary blades, rotors using only additive methods, e.g. build-up welding
    • 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
    • F01D5/005—Repairing methods or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/001—Turbines
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F05D2230/232—Manufacture essentially without removing material by permanently joining parts together by welding
    • F05D2230/238—Soldering
    • 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
    • F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
    • F05D2300/607—Monocrystallinity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49231—I.C. [internal combustion] engine making
    • Y10T29/49233—Repairing, converting, servicing or salvaging
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/49318—Repairing or disassembling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12944—Ni-base component

Definitions

  • the invention relates to a method for producing or repairing turbine or engine components and a component, namely turbine or engine component.
  • US Pat. No. 5,732,467 discloses a method for repairing surface cracks, wherein the substrate consisting of a superalloy has a directionally solidified structure.
  • the cleaned crack is filled with the substrate material.
  • the coated crack is then exposed to elevated temperature and isostatic pressure for a period of time without changing the microstructure of the substrate.
  • No. 5,666,643 discloses a method for repairing components of cobalt- and nickel-based superalloys by means of soldering.
  • a two-part solder material is used, one component of which forms the (actual) solder alloy, and the other component of which is formed by particles which are refractory and either monocrystalline, directionally solidified or polycrystalline.
  • the microstructure of the repaired crack deviates from that of the substrate, resulting in strength impairments within the filled cracks, particularly when positioned in areas of stress concentrations.
  • the repair system consists of at least three different metal powders. These different metal powders fulfill different functions.
  • the metal powders of a first group are high-melt zend and have a relatively high proportion of Mo, Re and W on; These metal powders do not melt or only partly melt during the soldering process.
  • the metal powders of a second and the remaining third group ensure a corresponding flow behavior of the soldering system.
  • the metal powders of the second group contain B and / or Si as melting point lower, and the metal powders of the third group in this case have eutectic compositions and assist in the soldering process as a liquid phase, the decay.
  • the solidification is brought about by an isothermal soldering operation, which is followed by a graduated diffusion cycle, but no monocrystalline filling of the gap is achieved.
  • the modular principle allows a flexible handling of the microstructure of the gap and the mechanical properties, which quite well achieve the properties of the substrates.
  • a low melting powder which may contain up to 1% Ti, W, Re, Mo, Nb, Hf, Pd, Pt, Ir, Ru, C, Si and / or Zr, is mixed with at least one refractory powder ,
  • the soldering temperature is 1260 ° C (10-40 min) and is again followed by a graded diffusion cycle. It seems that the creep rupture strength is close to that of the substrate.
  • Rene 80 powder is mixed with a ternary eutectic solder alloy containing about 15% Cr, 3.5% B and additionally up to 1.5% Fe.
  • the mixing ratio amounts to 65:35 in favor of Rene 80.
  • the brazing temperature is between 1175 ° C and 1215 0 C and kept for about 20 min. This results in a solder seam with polycrystalline microstructure.
  • the repair part can be applied to the component by various techniques, such as, for example, as paste, plasticine or via pre-sintered plates. Pre-sintered plates may for example be produced such that superalloy sheets are powder metallurgically produced, as disclosed in GB 2153845A.
  • US 6,325,871 discloses an isothermal soldering cycle by means of which components of cast superalloys can be bonded.
  • films are used whose boron content is 1 to 3 wt .-%.
  • solder material in the form of a viscous mass (color), which consists of solder material, additive material, binder and a carrier, applied to the previously mechanically closed and spot-welded crack whose width may be a maximum of 0.05 mm.
  • the soldering process itself lasts up to 20 minutes and is carried out at a temperature of 1204 ° C. After a subsequent cooling to 816 0 C is heated again to 1204 0 C, so that the Schmelztemperaturerniedriger diffuse from the gap in the base material.
  • US Pat. No. 6,629,368 discloses an isothermal solder repair of monocrystalline turbine blades which appears to restore a monocrystalline structure in the soldered areas.
  • a disadvantage of the design according to US Pat. No. 6,629,368 is that there is a risk of damage to the base material and that the process involves uneconomically long process times.
  • US 6,629,368 discloses a method according to which an isothermal epitaxial annealing of cracks is provided on monocrystalline materials.
  • the invention has the object to provide a suitable for the field of aircraft engines or turbines possibility of joining and / or repair of components, by means of which the mechanical and physical properties in the joining or repair area not or at least in proportion small extent.
  • a method according to claim 1 is proposed.
  • a component according to the invention namely a turbine or engine component, is the subject matter of claim 8 or claim 10.
  • Preferred developments are the subject of the subclaims.
  • a method, in particular high-temperature soldering, for producing or repairing, in particular monocrystalline, turbine or engine components which comprises the following steps: heating a solder to a temperature which is greater than or equal to the melting temperature of this solder ; Spend the resulting during this heating melt of the solder in a formed in the turbine or engine component crack or in a formed between two turbine or engine components gap or in a, in particular by material removal, damaged area of a turbine or drive factory component; and non-isothermal control of the temperature of the solder during an eptitaktisches Festarrungsluies this solder.
  • a solder is understood in particular to be a solder alloy, or a multicomponent soldering system comprising as components of the multi-component soldering system a solder alloy and at least one, such as exactly one or exactly two or exactly three or more three, additive material (s) identifies or consists of a solder alloy and at least one, such as exactly one or exactly two or exactly three or more than three, additive material (s).
  • the method according to the invention provides a good basis for the fact that a monocrystalline or at least one directionally solidified structure is also present in the repaired area after the repair and thus the mechanical and physical properties can be restored to a high degree.
  • the solder can be used up, for example, in the form of a viscous paste or placed in the crack or nip or applied to the damaged areas.
  • the viscosity can be achieved, for example, by mixing the metal powders with an organic binder.
  • the proportion of the binder may be, for example, 5 to 15% by weight, in particular 5 to 10% by weight or 8 to 12% by weight, particularly preferably substantially 10%, of the powder mixture.
  • the epitaxial solidification of the solder takes place in an advantageous embodiment of the method according to the invention with or at sinking, in particular strictly monotonically decreasing, temperature of the sample or the turbine or engine component or the solder.
  • the temperature drops linearly.
  • the cooling or sinking of the temperature during epitaxial solidification is controlled or regulated in particular.
  • the cooling in the method according to the invention ie in particular in high-temperature soldering, i. also in epitaxial soldering, controlled by means of an open control in a high vacuum.
  • setpoints can be specified by means of a computer program and the actual values by means of thermocouples on the sample or on the component or on the turbine or engine component or in the area of the solder - for simplicity, hereinafter abbreviated to sample instead of the above list spoken - determined or measured.
  • the sample is not actively cooled, wherein the cooling is effected via a natural heat loss of the sample (radiant heat) when the heat source, in particular heating, is switched off.
  • the cooling can again be done by radiant heat emitted by heating elements.
  • furnace control is only of an exemplary nature and, for example, other heat sources or heat transfers may be provided, such as, for example, when brazing under protective gas, heat transfer via gas molecules (kinetics) or inductive heat transfer during inductive soldering.
  • the temperature decreases according to the inventive method - as mentioned - during the epitaxial solidification process, but with a lower cooling rate than it decreases after the epitaxial solidification process.
  • the cooling rates may be between 100 K / min and 0.001 K / min, preferably 20 K / min and 0.01 K / min, preferably 10 K / min and 0.01 K / min, preferably 5 K / min and 0.01 K / min, preferably 0.5 K / min and 0.08 K / min.
  • cooling rates are particularly preferred which are less than 100 K / min, preferably less than 80 K / min, preferably less than 60 K / min, preferably less than 40 K / min, preferably less than 20 K / min , preferably less than 10 K / min, preferably less than 5 K / min, preferably less than 2 K / min, wherein the cooling rate may be constant or non-constant.
  • solder for example, a solder alloy having a composition according to the following table can be used in the method:
  • the solder has a nickel-based additive material which, for example, besides nickel, has one or more of the following elements:
  • FIG. 1 shows a temperature profile which may be given in an exemplary method according to the invention
  • FIG. 2 shows exemplary compositions of materials which can be used in connection with a method according to the invention, and in particular the exemplary method according to the invention explained with reference to FIG. 1 or FIG. 3;
  • FIG. 3 shows a further exemplary temperature profile, which may be given in another exemplary method according to the invention.
  • 1 shows an exemplary temperature-time profile 1 for a solder, which may be given in the context of an exemplary soldering or repair method according to the invention or an exemplary solder repair according to the invention for nickel base materials or for turbine blades made of a nickel-based material.
  • the nickel base material or the turbine blade made of a nickel-based material can be monocrystalline or polycrystalline or directionally solidified.
  • the nickel base material or the turbine blade has a crack or gap to be healed or to be filled or a region to be healed, which for example has a width or height of up to 500 ⁇ m.
  • the solder may be, for example, a nickel-based boron-containing solder.
  • the boron serves as melting point depressant and has a high mobility in nickel.
  • the solder may contain palladium, which is also a melting point depressant, and additionally increases the boron solubility of boron in the ternary Ni-Pd-B system.
  • the solder can furthermore contain one, several or all of the .gamma. 'Imagers Al, Nb and Ta, so that a precipitation hardening is carried out with a suitable heat treatment following the non-isothermal epitaxial solidification process (which will be mentioned below) can and is carried out in a preferred embodiment.
  • brazing materials to which an additive material may or may not be added, one of the materials may be provided, for example, which is described in DE 103 56 562 A1 of the applicant in paragraphs [0006] to [0069] or in US Pat Claims 1 to 23 are disclosed.
  • the mentioned passages of DE 103 56 562 Al are incorporated by reference into the subject of the present disclosure, wherein the applicant expressly reserves the right to claim as embodiments of the present invention, embodiments in which the passages mentioned in DE 103 56 562 Al disclosed materials are provided as solders.
  • solder material has a composition according to the following table:
  • a particularly advantageous solder composition is described in the second line of the table according to FIG. 2 (A2 solder alloy).
  • the solder alloy may be added to an additive material.
  • This additive material may be formed, for example, on nickel base. It can be provided that the proportion of the additive material added to the solder alloy is greater than 20% by weight, preferably greater than 25% by weight, preferably between 20 and 60% by weight, preferably between 25 and 50% by weight .-%, preferably between 30 and 50 wt .-%, preferably between 40 and 50 wt .-%, particularly preferably 50 wt .-% of the solder.
  • the additive material may be, for example, Rene 80, the composition of which is shown in line 3 of FIG.
  • the substrate i. the material to be annealed, or the turbine blade nickel-based.
  • the substrate i. The material to be annealed, or the turbine blade, can furthermore be polycrystalline, solidified in a columnar manner or monocrystalline. It should be noted, however, that special advantages of the method only come into play with columnar or monocrystalline materials.
  • the exemplary temperature-time curve 1 according to FIG. 1 refers, at least with regard to the indicated temperature and time values, by way of example to materials or substrates or turbine blades made of a monocrystalline nickel base.
  • Superalloy Rene N-5 or is optimized for a single crystal nickel base superalloy Rene N-5.
  • the composition of such a nickel-base superalloy Rene N-5 is shown in Fig. 2 in the last line.
  • the method can also be used, for example, in a columnar solidified or monocrystalline superalloy, in particular nickel-based alloy.
  • a method whose course of the temperature control for the non-isothermal (ie preferably decreasing temperature) epitaxial soldering of nickel-based materials is shown in FIG. 1, first a solder is heated to a temperature, which is greater than or equal to the melting temperature of this solder. In particular, it is then heated up to a temperature at which the solder is partially or completely molten.
  • melt of the solder produced during this heating is then transferred into a crack formed in the turbine or engine component or into a gap formed between two turbine or engine components or onto an area to be repaired.
  • This can also be done temporally parallel or temporally overlapping for heating, but alternatively also after heating.
  • the heating is there so that is heated to a temperature which is between 1200 ° C and 126O 0 C to completely melt the solder and the gap with melt to expire.
  • the area of the heating is illustrated in FIG. 1 by the reference numeral 10. Complete dissolution can be achieved, for example, by holding the melting temperature for 15-45 minutes. This is illustrated in FIG. 1 by the region 12. Alternatively, however, it may also be provided that such a holding of the melting temperature is dispensed with, or that the holding of the temperature which takes place after the heating and before the eptitaktischen solidification process, for a period of time which differs from the aforementioned period of time.
  • the holding of the temperature lasts shorter than the subsequent epitaxial solidification process.
  • the holding of the temperature is less than 50%, preferably less than 40%, preferably less than 30%, preferably less than 20%, preferably less than 10%, preferably less than 5%, preferably less than 3% , preferably less than 1% of the time taken by the epitaxial solidification process or a given cooling claimed.
  • the temperature of the solder is non-isothermally guided or controlled.
  • the epitaxial solidification process is performed non-isothermally by continuous from the melting temperature -. B. in the form of a ramp - is cooled, so that the material in the gap or crack homogeneous, ie without eutectic islands, epitaxially solidified.
  • the temperature-time course 1 is shown in Fig. 1, within 2 to 25 hours. In this example, while the temperature of the solder is cooled to 1050 ° C to 1200 0 C.
  • the non-isothermal temperature control during epitaxial solidification is shown schematically in FIG. 1 by the region with the reference numeral 14.
  • the first effect is that the boron diffuses into the base material, similar to the isothermal epitaxial solidification processes.
  • the second effect is that the boron solubility in nickel is increased up to a temperature of 1093 ° C.
  • the third effect is that melt-point-lowering elements accumulate in the melt and thus take into account a lowering of the liquidus temperature.
  • the temperature is returned to ambient temperature, which can be controlled or not controlled.
  • the embodiment shows a structural, non-isothermal solder repair of single-crystal turbine blades.
  • the repaired areas again have a monocrystalline structure and thus the associated high mechanical strength, oxidation resistance and remelting temperature.
  • the temperature resistance is thus - for example, in contrast to the design according to US 6,629,368 Bl - not isothermal, but non-isothermal with decreasing temperature, so that the soldering process is significantly accelerated.
  • turbine components made of monocrystalline nickel-base alloys which exhibit thermal fatigue cracks and material removal as operational damage images do not have a monocrystalline structure when using the soldering processes previously established in the field of aircraft turbines in the repaired areas. As a result, they do not have the original mechanical strength, oxidation resistance and remelt temperature after the repair. According to the embodiment explained with reference to FIG. In contrast to the exemplary embodiment of the present invention, however, the monocrystalline structure and thus also the mechanical and physical properties are largely restored.
  • the inventive soldering method explained with reference to the exemplary embodiment is based on a non-isothermal, epitaxial solidification of a solder in a crack or gap or area of a nickel-base alloy, so that the crystal structure, ie. H. Orientation and lattice of the crystal of the substrate, is recorded.
  • Isothermal guided epitaxial solidification processes are state of the art, their disadvantage being that the solidification process for significant gap widths, such as gap widths of 200 microns, is very time consuming, since only the Bohr out of the gap is diffused out, thus the liquidus temperature of the alloy to raise.
  • the solder structures in the repaired areas again have a monocrystalline structure which thus has the associated high mechanical strength, oxidation resistance and remelting temperature.
  • the temperature control is non-isothermal with decreasing temperature, the soldering process is considerably accelerated.
  • the monocrystalline base material of the turbine components is less thermally stressed and damaged, and the soldering process is also more economical due to its shorter process time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Welding Or Cutting Using Electron Beams (AREA)

Abstract

L'invention concerne un procédé de fabrication ou de réparation de composants monocristallins de turbines ou de moteurs, un matériau de brasage étant chauffé à une température qui est supérieure ou égale à la température de fusion de ce matériau de brasage. Ensuite, le matériau de brasage en fusion ainsi produit est introduit dans une fissure présente dans le composant de la turbine ou du moteur ou dans une fente présente entre deux composants de turbine ou de moteur. Ensuite, la température du matériau de brasage est commandée de manière non isotherme pendant un processus de solidification épitaxiale de cette brasure. Ce procédé, qui peut être appliqué par exemple sur des composants de turbines ou de moteurs constitués d'un alliage à base de nickel présente, par rapport aux procédés usuels, l'avantage qu'il permet une réparation par brasage plus rapide des composants de turbine ou de moteur, notamment pour des grandes largeurs de fentes ou de fissures, et que l'on peut faire en sorte, grâce à ce procédé, que les zones réparées présentent à nouveau une structure monocristalline, et donc la solidité mécanique, la résistance à l'oxydation et la température de refusion élevées associées.
EP07722486A 2006-06-08 2007-05-31 Procédé de fabrication ou de réparation de composants de turbines ou de moteurs ainsi que composant, à savoir composant de turbine ou de moteur Ceased EP2051829A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006026704A DE102006026704A1 (de) 2006-06-08 2006-06-08 Verfahren zur Herstellung oder Reparatur von Turbinen- oder Triebwerksbauteilen, sowie Bauteil, nämlich Turbinen- oder Triebwerksbauteil
PCT/DE2007/000971 WO2007140748A1 (fr) 2006-06-08 2007-05-31 Procédé de fabrication ou de réparation de composants de turbines ou de moteurs ainsi que composant, à savoir composant de turbine ou de moteur

Publications (1)

Publication Number Publication Date
EP2051829A1 true EP2051829A1 (fr) 2009-04-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07722486A Ceased EP2051829A1 (fr) 2006-06-08 2007-05-31 Procédé de fabrication ou de réparation de composants de turbines ou de moteurs ainsi que composant, à savoir composant de turbine ou de moteur

Country Status (5)

Country Link
US (1) US8555500B2 (fr)
EP (1) EP2051829A1 (fr)
JP (1) JP5054100B2 (fr)
DE (1) DE102006026704A1 (fr)
WO (1) WO2007140748A1 (fr)

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DE102010026048A1 (de) 2010-07-03 2012-01-05 Mtu Aero Engines Gmbh Nickelbasis-Lotlegierung
CN102489891A (zh) * 2011-11-16 2012-06-13 燕山大学 一种轻载低速齿轮断齿修复堆焊用特种焊条
CN104428101B (zh) * 2012-12-05 2018-04-27 利宝地工程有限公司 使用复合填料粉末的高温合金的包覆和熔焊的方法
US9610643B2 (en) 2014-06-02 2017-04-04 Solar Turbines Incorporated Combustor assembly for a gas turbine engine having a braze layer having a centerline eutectic free region
US10766105B2 (en) 2015-02-26 2020-09-08 Rolls-Royce Corporation Repair of dual walled metallic components using braze material
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US8555500B2 (en) 2013-10-15
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US20100291405A1 (en) 2010-11-18
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JP2009540173A (ja) 2009-11-19
WO2007140748A1 (fr) 2007-12-13

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