EP3183092A1 - Remelting and subsequent application welding and component - Google Patents

Remelting and subsequent application welding and component

Info

Publication number
EP3183092A1
EP3183092A1 EP15778673.2A EP15778673A EP3183092A1 EP 3183092 A1 EP3183092 A1 EP 3183092A1 EP 15778673 A EP15778673 A EP 15778673A EP 3183092 A1 EP3183092 A1 EP 3183092A1
Authority
EP
European Patent Office
Prior art keywords
oxidation
substrate
remelting
component
resistant material
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Withdrawn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
EP15778673.2A
Other languages
German (de)
French (fr)
Inventor
Bernd Burbaum
Torsten Neddemeyer
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP3183092A1 publication Critical patent/EP3183092A1/en
Withdrawn legal-status Critical Current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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • B23K26/354—Working by laser beam, e.g. welding, cutting or boring for surface treatment by melting
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/34—Laser welding for purposes other than joining
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/34—Laser welding for purposes other than joining
    • B23K26/342—Build-up welding
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/60—Preliminary treatment
    • 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
    • F01D5/12—Blades
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • F01D5/286—Particular treatment of blades, e.g. to increase durability or resistance against corrosion or erosion
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/18—Dissimilar materials
    • B23K2103/26—Alloys of Nickel and Cobalt and Chromium
    • 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

Definitions

  • the invention relates to the refinement of surfaces by remelting and build-up welding and a component.
  • Step 1 is only an embodiment of the invention ⁇ It is proposed a method which comprises two steps. Step 1:
  • Step 2 By remelting a surface of a substrate is ⁇ works. By remelting, in particular by means of a laser beam, it is possible to generate long grains along the remelted trace so that grain boundaries on the surface are removed. Step 2 :
  • epitaxial deposition welding in particular by means of laser, can be an oxidation resistant layer, in particular ⁇ sondere of NiCoCrAlY, order-weld to the remelted zone, so that this particular epitaxially grows without grain boundaries or korngrenzenarm on the substrate (identi ⁇ specific crystallographic orientation as the base material) ,
  • This procedure improves the oxidation resistance on the surfaces of polycrystalline solidified components of nickel-base superalloys, in particular because epitaxy provides fewer grain boundaries for oxidation damage and additionally generates additional oxidation protection by coating.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Materials Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Arc Welding In General (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

After remelting in a suitable mold for reducing grain boundaries, an oxidation-resistant material is epitaxially grown so that the oxidation resistance of a repaired material or also of a new part is improved.

Description

Umschmelzen und anschließendes Auftragsschweißen und Bauteil  Remelting and subsequent build-up welding and component
Die Erfindung betrifft die Veredelung von Oberflächen mittels Umschmelzen und Auftragsschweißen sowie ein Bauteil. The invention relates to the refinement of surfaces by remelting and build-up welding and a component.
Bei der Reparatur von Bauteilen, z. B. von Turbinenschaufeln, kommt es zum Verschleiß durch Erosion bzw. Korrosion. Dabei müssen Risse verschlossen werden und neues Material aufgetra- gen werden, wohingegen das Oxidationsverhalten bzw. ein Oxi- dationsschutz gegeben sein muss. Bei gewissen Werkstoffen ist die Oxidationsbeständigkeit nicht gegeben. When repairing components, eg. B. of turbine blades, it comes to wear due to erosion or corrosion. Cracks must be closed and new material applied, whereas the oxidation behavior or an oxidation protection must be given. For certain materials, the oxidation resistance is not given.
Dies führt zur Beschränkung des erneuten Einsatzes des Bau¬ teils, wenn erhöhte Anforderungen an die Erosions- oder Kor- rosionsbeständigkeit bestehen. This leads to the restriction of the renewed use of the building ¬ part, if there are increased demands on erosion or corrosion resistance.
Es ist daher Aufgabe der Erfindung ein Verfahren aufzuzeigen, mit dem dieses Problem gelöst werden kann. Die Aufgabe wird gelöst durch ein Verfahren gemäß Anspruch 1 und ein Bauteil gemäß Anspruch 7. It is therefore an object of the invention to provide a method by which this problem can be solved. The object is achieved by a method according to claim 1 and a component according to claim 7.
In den Unteransprüchen sind weitere vorteilhafte Maßnahmen aufgelistet, die beliebig miteinander kombiniert werden kön- nen, um weitere Vorteile zu erzielen. The subclaims list further advantageous measures which can be combined with one another as desired in order to achieve further advantages.
Die Beschreibung stellt nur ein Ausführungsbeispiel der Er¬ findung dar. Vorgeschlagen wird ein Verfahren, das zwei Schritte aufweist: Schritt 1: The description is only an embodiment of the invention ¬ It is proposed a method which comprises two steps. Step 1:
Mittels Umschmelzen wird eine Oberfläche eines Substrats be¬ arbeitet. Durch das Umschmelzen, insbesondere mittels Laser- strahl, lassen sich lange Körner entlang der umgeschmolzenen Spur generieren, so dass Korngrenzen an der Oberfläche entfernt werden. Schritt 2 : By remelting a surface of a substrate is ¬ works. By remelting, in particular by means of a laser beam, it is possible to generate long grains along the remelted trace so that grain boundaries on the surface are removed. Step 2 :
Mittels epitaktischem Auftragsschweißen, insbesondere mittels Laser, lässt sich eine oxidationsbeständige Schicht, insbe¬ sondere aus NiCoCrAlY, auf die umgeschmolzene Zone auftrags- schweißen, so dass diese ohne Korngrenzen oder korngrenzenarm auf dem Substrat insbesondere epitaktisch aufwächst (identi¬ sche kristallographische Orientierung wie Grundwerkstoff) . By means of epitaxial deposition welding, in particular by means of laser, can be an oxidation resistant layer, in particular ¬ sondere of NiCoCrAlY, order-weld to the remelted zone, so that this particular epitaxially grows without grain boundaries or korngrenzenarm on the substrate (identi ¬ specific crystallographic orientation as the base material) ,
Durch diese Vorgehensweise wird die Oxidationsbeständigkeit an den Oberflächen von polykristallin erstarrten Komponenten aus Nickelbasis-Superlegierungen verbessert, insbesondere, da durch die Epitaxie weniger Korngrenzen für eine Oxidations- schädigung zur Verfügung stehen und zudem durch eine Be- schichtung noch zusätzlicher Oxidationsschutz generiert wird. This procedure improves the oxidation resistance on the surfaces of polycrystalline solidified components of nickel-base superalloys, in particular because epitaxy provides fewer grain boundaries for oxidation damage and additionally generates additional oxidation protection by coating.
Das Material der oxidationsbeständigen Schicht ist verschie¬ den von dem Material des Substrats des metallischen Bauteils. Verschieden bedeutet, dass mindestens ein Legierungselement mit 15% weniger oder mehr vorhanden ist oder zumindest ein Legierungselement nicht vorhanden bzw. vorhanden ist. The material of the oxidation resistant layer from the various ¬ the material of the substrate of the metallic component. Different means that at least one alloying element with 15% less or more is present or at least one alloying element does not exist or is present.

Claims

Patentansprüche claims
1. Verfahren zur Oberflächenbehandlung eines metallischen Substrats, 1. A method of surface treatment of a metallic substrate,
bei dem zuerst eine Umschmelzung der Oberfläche des metal¬ lischen Substrats stattfindet zur Entfernung von Rissen und zur Reduzierung von Korngrenzen, wherein the first, remelting the surface of the metal ¬ metallic substrate takes place for the removal of cracks and the reduction of grain boundaries,
und dann Auftragsschweißen eines oxidationsbeständigeren Materials zumindest teilweise auf den umgeschmolzenen Be¬ reich. and then build-up welding a more oxidation-resistant material at least partially on the remelted Be ¬ rich.
2. Verfahren nach Anspruch 1, 2. The method according to claim 1,
bei dem das Auftragsschweißen des oxidationsbeständigen Materials epitaktisch erfolgt.  in which the build-up welding of the oxidation-resistant material takes place epitaxially.
3. Verfahren nach einem der beiden Ansprüche 1 oder 2, bei dem das oxidationsbeständigere Material eine NiCoCrAlX-3. Method according to one of the two claims 1 or 2, wherein the oxidation-resistant material is a NiCoCrAlX-
Legierung darstellt, Alloy represents,
wobei X insbesondere Rhenium (Re) , Silizium (Si) , Yttrium (Y) , Tantal (Ta) und/oder Eisen (Fe) darstellt.  wherein X represents in particular rhenium (Re), silicon (Si), yttrium (Y), tantalum (Ta) and / or iron (Fe).
4. Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, 4. The method according to one or more of the preceding claims,
bei dem das Umschmelzen und Auftragsschweißen in derselben Vorrichtung durchgeführt wird.  in which remelting and build-up welding is performed in the same apparatus.
5. Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, 5. The method according to one or more of the preceding claims,
bei dem das Substrat eine nickel- oder kobaltbasierte  wherein the substrate is nickel or cobalt based
Legierung darstellt. Alloy represents.
6. Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, 6. The method according to one or more of the preceding claims,
bei dem das Material des oxidationsbeständigen Materials von dem Material des Substrats verschieden ist.  wherein the material of the oxidation resistant material is different from the material of the substrate.
7. Metallisches Bauteil, 7. metallic component,
insbesondere hergestellt nach einem oder mehreren der Ansprüche 1 bis 6,  in particular produced according to one or more of claims 1 to 6,
das auf einem Umschmelzbereich eines Substrats des Bauteils ein oxidationsbeständigeres Material,  that on a remelting area of a substrate of the component, an oxidation-resistant material,
insbesondere epitaktisch aufgewachsenes Material,  in particular epitaxially grown material,
aufweist .  having .
8. Bauteil nach Anspruch 7, 8. Component according to claim 7,
bei dem das Substrat eine nickel- oder kobaltbasierte  wherein the substrate is nickel or cobalt based
Legierung darstellt.  Alloy represents.
9. Bauteil nach einem oder beiden der vorhergehenden Ansprüche, 9. Component according to one or both of the preceding claims,
bei dem das Material des oxidationsbeständigen Materials von dem Material des Substrats verschieden ist.  wherein the material of the oxidation resistant material is different from the material of the substrate.
10. Bauteil nach einem oder mehreren der vorhergehenden Ansprüche, 10. Component according to one or more of the preceding claims,
bei dem das oxidationsbeständigere Material eine NiCoCrAlX- Legierung darstellt,  wherein the more oxidation resistant material is a NiCoCrAlX alloy,
wobei X insbesondere Rhenium (Re) , Silizium (Si) , Yttrium (Y) , Tantal (Ta) und/oder Eisen (Fe) darstellt.  wherein X represents in particular rhenium (Re), silicon (Si), yttrium (Y), tantalum (Ta) and / or iron (Fe).
EP15778673.2A 2014-10-31 2015-10-12 Remelting and subsequent application welding and component Withdrawn EP3183092A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014222266.4A DE102014222266A1 (en) 2014-10-31 2014-10-31 Remelting and subsequent build-up welding and component
PCT/EP2015/073557 WO2016066414A1 (en) 2014-10-31 2015-10-12 Remelting and subsequent application welding and component

Publications (1)

Publication Number Publication Date
EP3183092A1 true EP3183092A1 (en) 2017-06-28

Family

ID=54292802

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15778673.2A Withdrawn EP3183092A1 (en) 2014-10-31 2015-10-12 Remelting and subsequent application welding and component

Country Status (5)

Country Link
US (1) US20170304936A1 (en)
EP (1) EP3183092A1 (en)
DE (1) DE102014222266A1 (en)
RU (1) RU2017114505A (en)
WO (1) WO2016066414A1 (en)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4157923A (en) * 1976-09-13 1979-06-12 Ford Motor Company Surface alloying and heat treating processes
CA2037660C (en) * 1990-03-07 1997-08-19 Tadashi Kamimura Methods of modifying surface qualities of metallic articles and apparatuses therefor
EP1001055B1 (en) * 1998-11-10 2004-02-25 ALSTOM Technology Ltd Gas turbine component
DE10137776C1 (en) * 2001-08-02 2003-04-17 Fraunhofer Ges Forschung Process for the production of wear-resistant surface layers
EP1340583A1 (en) * 2002-02-20 2003-09-03 ALSTOM (Switzerland) Ltd Method of controlled remelting of or laser metal forming on the surface of an article
JP4773457B2 (en) * 2004-12-24 2011-09-14 アルストム テクノロジー リミテッド Components with embedded passages, especially hot gas components of turbomachines
DE102008003871A1 (en) * 2008-01-08 2009-07-09 Volkswagen Ag Finishing thin metal sheet and/or products made of thin metal sheets later designed as semifinished sheet metal products using laser beam technology, by locally melting surface of products with laser beam up to in given sheet-metal depth
EP2317078B2 (en) * 2009-11-02 2021-09-01 Ansaldo Energia IP UK Limited Abrasive single-crystal turbine blade
EP2756915A1 (en) * 2013-01-18 2014-07-23 Siemens Aktiengesellschaft Build-up welding with previous remelting
EP2756912A1 (en) * 2013-01-18 2014-07-23 Siemens Aktiengesellschaft Remelting for build-up welding

Also Published As

Publication number Publication date
WO2016066414A1 (en) 2016-05-06
DE102014222266A1 (en) 2016-05-04
US20170304936A1 (en) 2017-10-26
RU2017114505A3 (en) 2018-11-30
RU2017114505A (en) 2018-11-30

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