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EP2467224A1 - Élément structural à paroi mince et procédé pour le produire - Google Patents

Élément structural à paroi mince et procédé pour le produire

Info

Publication number
EP2467224A1
EP2467224A1 EP10754256A EP10754256A EP2467224A1 EP 2467224 A1 EP2467224 A1 EP 2467224A1 EP 10754256 A EP10754256 A EP 10754256A EP 10754256 A EP10754256 A EP 10754256A EP 2467224 A1 EP2467224 A1 EP 2467224A1
Authority
EP
European Patent Office
Prior art keywords
structural component
carrier
alloys
powder
cold gas
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.)
Withdrawn
Application number
EP10754256A
Other languages
German (de)
English (en)
Inventor
Andreas Jakimov
Erwin Bayer
Karl-Heinz Dusel
Carsten Butz
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 EP2467224A1 publication Critical patent/EP2467224A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/02—Coating starting from inorganic powder by application of pressure only
    • C23C24/04—Impact or kinetic deposition of particles

Definitions

  • the present invention relates to a method for producing a thin-walled structural component and to a corresponding structural component, preferably for a gas turbine, in particular an aircraft engine.
  • such components can also be produced, for example, by laser sintering or by laser powder plating welding.
  • laser sintering or by laser powder plating welding.
  • such methods are economically very ineffective for thin-walled large-area structural components, since they require very long production times.
  • high-temperature-resistant components with thin walls, such as airfoils or leading segments of aircraft engines are to be provided.
  • the invention is based on the recognition that thin-walled structural components can be produced in an advantageous manner by means of kinetic cold gas spraying or kinetic cold gas compacting.
  • kinetic cold gas compacting a very fine-grained, homogeneous microstructure without large variations in chemical composition over the entire extension of the component can be produced, whereby a very compact and dense structure can be produced without porosity.
  • the disadvantages of thin cast structures such as porosity, coarseness and segregation can be avoided.
  • a corresponding powder can be deposited on a carrier by cold gas spraying, wherein the carrier represents the negative mold of a functional surface of the structural component at least on one side, at which the deposition takes place.
  • the functional surface or side may be the corresponding surface for conducting and guiding the hot gases.
  • the carrier part can also provide a plurality of surfaces for depositing the powders by means of cold gas compacting or the structural component can have a plurality of functional sides or surfaces.
  • any arbitrary three-dimensional structure can be formed with the method, in particular if the method is carried out repeatedly in several steps, with subsequent deposits by means of kinetic cold gas compaction no carrier is required, but the deposition can be made directly on the already existing semi-finished.
  • Under thin-walled structural component are in particular components to understand their thickness is much smaller than the longitudinal or width extension, in particular components in which the thickness of the component or parts of the component only 1/10 of the longitudinal or width extension or less, in particular 1 / 50 or less of the longitudinal or the width of the component.
  • the structural component in the case of thin-walled structural components which are produced according to the invention by kinetic cold gas spraying of powder onto a carrier, the structural component can also be subjected to heat treatment without distortion if the heat treatment is still carried out at a point in time at which the structural component is still on the carrier.
  • a distortion as it can occur in thin-walled cast components during heat treatment, reliably avoid.
  • the structural member may be separated from the corresponding carrier after cold gas spraying and / or heat treatment. However, it is also conceivable that the carrier or parts thereof remain connected as a lost form with the structural component.
  • the carrier may have at least one surface on which the powder particles impinge upon the kinetic cold gas spraying and are deposited, wherein the corresponding surface of the structural component thus formed may form a functional surface of the structural component.
  • the carrier may be formed with its negative mold so that corresponding functional elements of the structural component are formed directly in the production, such as holes, openings, recesses and the like. Accordingly, the carrier need only have corresponding elevations on the surface as a negative mold, which is acted upon by the powder particles during cold gas spraying.
  • the carrier may be formed of different materials, such as ceramic, steel, hardened steel, glass, quartz glass, stone, z. B. granite, etc.
  • a carrier material thus come into consideration various materials that need only have the necessary hardness or strength to withstand the impact of the particles with the correspondingly high speeds can.
  • the carrier is also temperature resistant in order to survive heat treatment of the structural component without damage can.
  • the support allows the impinging particles to adhere sufficiently to the support, since it is necessary for the structure of the structural component that the first impinging particles adhere to the support, thus forming the basis for the subsequent particles to be able to.
  • the support may be provided with a layer which improves the adhesion, for example with a metallic layer, in particular silver, platinum, copper or alloys thereof.
  • the layer which on the one hand represents the adhesive base and, on the other hand, subsequently enables the separation of the structural component from the carrier, may be identical.
  • the layer may remain on the support after detachment of the finished structural component on the structural component.
  • the layer can be a platinum alloy, which, for example, can additionally serve on the structural component as a protective layer for hot gas corrosion.
  • casting materials and, in particular, high-temperature-resistant cast materials such as are used for structural components in gas turbines or aircraft engines, can be used with the present method.
  • nickel-base alloys, iron-base alloys, titanium-based alloys, cobalt-base alloys, and the like can be used to manufacture the structural component.
  • the corresponding materials must be provided only in powder form.
  • superalloys, ie alloys which can reach temperatures of up to 90% of their melting point or have sufficient strength up to at least temperatures of 80% of the melting point, as materials for which the structural components according to the invention are used.
  • Such superalloys also have iron, nickel, platinum, chromium or cobalt as the base component with corresponding additions of cobalt, nickel, iron, chromium, molybdenum, tungsten, rhenium, ruthenium, tantalum, niobium, aluminum, titanium, manganese, zirconium, carbon and boron on.
  • Corresponding alloys are marketed under the trade names Stellite, Tribaloy, Hastelloy, Inconel and the like. For example, these may be NiCrI 9NbMo alloys (Inconel 718) and comparable alloys such as MAR247, IN713 and the like.
  • alloys having the following components in the order of their compositional content are conceivable: NiWCoCrAl-TaTiMo alloys, NiCrFeNbMo alloys, NiCoCrAlMo alloys, NiCrCoTiW alloys and MCrAlY alloys with M equal to nickel or cobalt.
  • the materials for forming the structural component can be present as powder with particles of the corresponding material composition or as a powder mixture of powder particles of one or more components of the material.
  • the materials can be modified accordingly by the powder application, for example by adding appropriate oxide powders, through which the hardness and strength of the structural components can be positively influenced.
  • the structural components can be formed homogeneously from the same material both in their longitudinal and width directions as well as in the thickness direction and / or be produced with correspondingly same deposition parameters, so that the overall result is a homogeneous formation.
  • the structural components of different layers or layers or in width or lengthwise extension may also be different in different areas, wherein a different chemical composition may be present, different starting powders are used, for. B. with regard to the powder particle sizes used and / or different spray parameters can be used.
  • any gradients in three-dimensional structures can be realized.
  • the grain sizes used a wide variety of powder fractions can be used, such as, for example, powders with almost uniform grain size or with a very broad particle size distribution.
  • different powders for example according to the components of a material composition, they can be used with the same particle sizes or different particle sizes.
  • the nickel-base superstructure may be present as a powder having a specific particle size distribution, while the admixed oxide particles may have a much smaller particle size and / or different particle size distribution.
  • the particle sizes can generally, but in particular in the case of oxide powder, go down to particle sizes in the range of a few micrometers or nanometers.
  • the correspondingly produced structural component can be processed or further processed by any suitable method and joined by joining with other components, for example provided with corresponding suspension tabs, which are soldered or welded, for example.
  • a structural component which is formed from a Gefuge with a plurality of mutually clamped by the cold gas spraying and deformed particles. Accordingly, it may have a very high density or low porosity.
  • a very fine-grained Gefuge according to the selection of the starting powder is adjustable.
  • the density in the component can also be adapted to the requirements.
  • the structural component can be produced free of pores, in particular in the area of a functional surface, without any pores.
  • the porosity have less or equal to 1 vol .-% over the entire component or parts of the component, without additional processing steps are required.
  • a desired profile of the chemical composition can be achieved in a defined manner, since no segregations are to be feared.
  • the chemical composition throughout the structural component may deviate less than 10% from a mean or desired composition.
  • Figure 1 is a schematic diagram of an arrangement for carrying out the inventive
  • Figure 2 is a sectional view through a structural component according to the arrangement of
  • Figure 3 is a sectional view through a second structural component made according to the arrangement of Figure 1;
  • FIG. 4 shows a partial section through a structural component according to the invention.
  • FIG. 1 shows a schematic diagram of an arrangement for producing a thin-walled structural component according to the present invention.
  • the arrangement comprises a carrier 1, which serves with one of its sides as a negative mold for a structural component 11.
  • a structured surface 2 and a survey 3 is provided, which serves to form a recess as a functional element of the structural component.
  • Powder particles 10 are applied by means of a spray jet 9 to the negative-form side of the carrier 1 in the kinetic cold gas spraying process.
  • a cold gas spraying device 4 with a nozzle arrangement for. B.
  • a Laval nozzle 5 provided in which via a process gas supply 6 process gas is supplied at high pressure, so that powder particles, which are supplied via the Pulve ⁇ umblezu Adjusten 7 and / or 8, leave the nozzle 5 at high speed and accelerated to the surface of the carrier 1.
  • the velocity of the particles 10 in the spray jet can in this case go into the range of the speed of sound.
  • Characteristic of the kinetic cold gas spraying is that the powder particles 10 are not melted or melted and thus the operating temperature is chosen below the melting temperature of the sprayed material.
  • a carrier layer 12 may be provided , which is arranged only partially on the carrier 1 in the illustration of FIG.
  • the carrier layer 12 may be a metallic layer, such as silver, copper or platinum or alloys thereof.
  • the structural component 11 is a thin-walled component made of a cast material, in particular a high-temperature-resistant cast material, which is used in particular as a structural component of a gas turbine, in particular of an aircraft engine.
  • a cast material in particular a high-temperature-resistant cast material
  • An example is formed by guide segments or airfoils used in hot parts of an engine to guide the hot gases.
  • the particles 10 applied to the carrier 1 by kinetic cold gas spraying may be constituted by respective high temperature cast materials or components thereof, such as nickel base alloys, iron base alloys, titanium base alloys, cobalt base alloys, superalloys, in particular M247 Inconel IN713 and Inconel type IN718, etc.
  • FIGS. 2 and 3 show cross sections through finished structural components 11 and 11 'that can be produced on the carrier 1.
  • the structural members 11 and 11 'of FIGS. 2 and 3 are shown in the condition in which they are detached from the carrier 1.
  • the structural components 11 and 11 ' also have a structured functional surface 14 on their functional side, ie on the side facing the carrier surface on which the particles impinge.
  • a passage 13 is formed by the survey 3, which is contained directly in the structural component 11, 11 'generated by kinetic cold gas spraying and does not have to be subsequently introduced yet.
  • the carrier layer 12 can be seen, which has remained on the structural component 11 as a functional layer upon detachment of the structural component 11 from the carrier 1.
  • FIG. 3 shows, with the structural component 11 ', a modified embodiment in which the structural component 11' is formed from two layers 15 and 16 made of different materials.
  • the layer 15 may be formed on the functional side of a highly corrosion-resistant high-temperature material, such as MAR 247, while the layer 16 may be formed on the side facing away from the functional side half of the structural member 11 'of a particularly high-strength high-temperature material, such as Inconel IN718.
  • continuous gradients can also be set, for example by a continuous change in the powder composition during kinetic cold gas spraying and / or by a continuous change in parameters.
  • FIG. 4 shows a cross section through a structural component 11, as can be produced according to the invention.
  • the structural component 11 has a structure with a multiplicity of grains 17, which are formed from the corresponding cast material of the structural component 11, for example, a high temperature nickel base superalloy.
  • additional phases such as oxides 18, which can further improve and increase the hardness and strength.
  • this is possible in a simple manner in that either additional materials are added to the powder to be sprayed, for example a powder of oxides is mixed with the powder of a high-temperature-resistant cast material, or else the oxide powder is introduced separately into the gas stream, in order to be deposited accordingly.
  • an even better property profile of the structural component can be set.
  • the invention comprises in particular all possible combinations of the features presented.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

L'invention concerne un procédé pour produire un élément structural à paroi mince à partir d'un matériau de moulage, ledit matériau de moulage étant utilisé sous forme pulvérulente et ladite poudre étant déposée par projection cinétique par gaz froid sur un support (1) de manière à former l'élément structural (11, 11'), ainsi qu'un élément structural à base d'un matériau de moulage, dont la structure est composée d'une pluralité de particules (17) imbriqués mutuellement et déformés par projection par gaz froid.
EP10754256A 2009-08-18 2010-08-09 Élément structural à paroi mince et procédé pour le produire Withdrawn EP2467224A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009037894A DE102009037894A1 (de) 2009-08-18 2009-08-18 Dünnwandiges Strukturbauteil und Verfahren zu seiner Herstellung
PCT/DE2010/000946 WO2011020462A1 (fr) 2009-08-18 2010-08-09 Élément structural à paroi mince et procédé pour le produire

Publications (1)

Publication Number Publication Date
EP2467224A1 true EP2467224A1 (fr) 2012-06-27

Family

ID=43332593

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10754256A Withdrawn EP2467224A1 (fr) 2009-08-18 2010-08-09 Élément structural à paroi mince et procédé pour le produire

Country Status (4)

Country Link
US (1) US9393622B2 (fr)
EP (1) EP2467224A1 (fr)
DE (1) DE102009037894A1 (fr)
WO (1) WO2011020462A1 (fr)

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GB2474345B (en) * 2009-10-07 2015-06-03 Gen Electric Turbine rotor fabrication using cold spraying

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CN106346011A (zh) * 2016-09-29 2017-01-25 柳州增程材料科技有限公司 3d打印用复合金属粉末的制备方法
CN106216697A (zh) * 2016-09-29 2016-12-14 柳州增程材料科技有限公司 3d打印用合金粉末的制备方法
CN106346012A (zh) * 2016-09-30 2017-01-25 柳州增程材料科技有限公司 汽车变速箱用铝镁合金的制备方法
CN106346013A (zh) * 2016-09-30 2017-01-25 柳州增程材料科技有限公司 汽车发动机用铝镁合金粉末的制备方法
CN106238741A (zh) * 2016-09-30 2016-12-21 柳州增程材料科技有限公司 汽车用铝镁合金材料的制备方法
CN106346014A (zh) * 2016-09-30 2017-01-25 柳州增程材料科技有限公司 变速箱用铝镁合金的加工方法
US10363634B2 (en) 2016-12-22 2019-07-30 United Technologies Corporation Deposited structure with integral cooling enhancement features
US10648084B2 (en) 2016-12-22 2020-05-12 United Technologies Corporation Material deposition to form a sheet structure
US20180178331A1 (en) * 2016-12-22 2018-06-28 United Technologies Corporation Reinforcement of a deposited metallic structure using reinforcing particles
US10519552B2 (en) 2016-12-22 2019-12-31 United Technologies Corporation Deposited material structure with integrated component
US10907256B2 (en) 2016-12-22 2021-02-02 Raytheon Technologies Corporation Reinforcement of a deposited structure forming a metal matrix composite
US10563310B2 (en) 2016-12-22 2020-02-18 United Technologies Corporation Multi-wall deposited thin sheet structure
WO2018157155A1 (fr) * 2017-02-27 2018-08-30 Arconic Inc. Produits d'alliage à constituants multiples et leurs procédés de fabrication
CN110328460B (zh) * 2019-08-08 2021-09-21 广东省科学院新材料研究所 一种银不锈钢复合板的连接方法及其应用
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Also Published As

Publication number Publication date
DE102009037894A1 (de) 2011-02-24
US20120171041A1 (en) 2012-07-05
US9393622B2 (en) 2016-07-19
WO2011020462A1 (fr) 2011-02-24

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