DE69730905D1 - Verfahren zum Entfernen einer Diffusionsbeschichtung von einer Legierung auf Nickelbasis - Google Patents

Verfahren zum Entfernen einer Diffusionsbeschichtung von einer Legierung auf Nickelbasis

Info

Publication number
DE69730905D1
DE69730905D1 DE69730905T DE69730905T DE69730905D1 DE 69730905 D1 DE69730905 D1 DE 69730905D1 DE 69730905 T DE69730905 T DE 69730905T DE 69730905 T DE69730905 T DE 69730905T DE 69730905 D1 DE69730905 D1 DE 69730905D1
Authority
DE
Germany
Prior art keywords
nickel
based alloy
diffusion coating
diffusion
coating
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.)
Expired - Lifetime
Application number
DE69730905T
Other languages
English (en)
Other versions
DE69730905T2 (de
Inventor
Jeffrey John Reverman
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of DE69730905D1 publication Critical patent/DE69730905D1/de
Application granted granted Critical
Publication of DE69730905T2 publication Critical patent/DE69730905T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/44—Compositions for etching metallic material from a metallic material substrate of different composition
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • ing And Chemical Polishing (AREA)
DE69730905T 1996-06-17 1997-06-17 Verfahren zum Entfernen einer Diffusionsbeschichtung von einer Legierung auf Nickelbasis Expired - Lifetime DE69730905T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/664,762 US5728227A (en) 1996-06-17 1996-06-17 Method for removing a diffusion coating from a nickel base alloy
US664762 1996-06-17

Publications (2)

Publication Number Publication Date
DE69730905D1 true DE69730905D1 (de) 2004-11-04
DE69730905T2 DE69730905T2 (de) 2006-02-23

Family

ID=24667342

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69730905T Expired - Lifetime DE69730905T2 (de) 1996-06-17 1997-06-17 Verfahren zum Entfernen einer Diffusionsbeschichtung von einer Legierung auf Nickelbasis

Country Status (6)

Country Link
US (1) US5728227A (de)
EP (1) EP0814179B1 (de)
JP (1) JP4097305B2 (de)
BR (1) BR9703597A (de)
CA (1) CA2204812C (de)
DE (1) DE69730905T2 (de)

Families Citing this family (40)

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US5898994A (en) * 1996-06-17 1999-05-04 General Electric Company Method for repairing a nickel base superalloy article
US6042879A (en) * 1997-07-02 2000-03-28 United Technologies Corporation Method for preparing an apertured article to be recoated
US6174448B1 (en) 1998-03-02 2001-01-16 General Electric Company Method for stripping aluminum from a diffusion coating
US6416589B1 (en) 1999-02-18 2002-07-09 General Electric Company Carbon-enhanced fluoride ion cleaning
US6199276B1 (en) 1999-08-11 2001-03-13 General Electric Company Method for removing a dense ceramic thermal barrier coating from a surface
DE19960353A1 (de) * 1999-12-14 2001-06-21 Dechema Deutsche Gesellschaft Fuer Chemisches Apparatewesen, Chemische Technik Und Biotechnologie Ev Verfahren zur Herstellung einer Diffusionsbarriere zur Lebensdauererhöhung von Hochtemperatur-Schutzschichten
US6355116B1 (en) * 2000-03-24 2002-03-12 General Electric Company Method for renewing diffusion coatings on superalloy substrates
DE60042061D1 (de) 2000-05-31 2009-06-04 Alstom Technology Ltd Verfahren zum Einstellen der Grösse von Kühllöchern eines Bauteils einer Gasturbine
EP1162284A1 (de) 2000-06-05 2001-12-12 Alstom (Switzerland) Ltd Verfahren zum Reparieren einer beschichteten Komponenten
US6833328B1 (en) * 2000-06-09 2004-12-21 General Electric Company Method for removing a coating from a substrate, and related compositions
US6605364B1 (en) * 2000-07-18 2003-08-12 General Electric Company Coating article and method for repairing a coated surface
US6434823B1 (en) 2000-10-10 2002-08-20 General Electric Company Method for repairing a coated article
US6465040B2 (en) 2001-02-06 2002-10-15 General Electric Company Method for refurbishing a coating including a thermally grown oxide
US6367687B1 (en) 2001-04-17 2002-04-09 General Electric Company Method for preparing a plate rim for brazing
EP1251191B1 (de) 2001-04-21 2004-06-02 ALSTOM Technology Ltd Verfahren zum Reparieren einer keramischen Beschichtung
EP1258545B1 (de) 2001-05-14 2004-12-01 ALSTOM Technology Ltd Verfahren zum isothermischen Hartlöten von einkristallinen Gegenständen
FR2827308B1 (fr) * 2001-07-12 2004-05-14 Snecma Moteurs Procede de reparation globale d'une piece revetue d'une barriere thermique
US6485655B1 (en) 2001-08-02 2002-11-26 General Electric Company Method and apparatus for retaining an internal coating during article repair
EP1298230A1 (de) * 2001-10-01 2003-04-02 Siemens Aktiengesellschaft Verfahren zur Entfernung von Schichtbereichen eines Bauteils aus Metall
DE60310168T2 (de) * 2002-08-02 2007-09-13 Alstom Technology Ltd. Verfahren zum Schutz von Teilflächen eines Werkstücks
US6969457B2 (en) * 2002-10-21 2005-11-29 General Electric Company Method for partially stripping a coating from the surface of a substrate, and related articles and compositions
US7010987B2 (en) * 2002-10-31 2006-03-14 Alstom (Switzerland) Ltd Non-destructive method of detecting defects in braze-repaired cracks
EP1424158B1 (de) * 2002-11-29 2007-06-27 Alstom Technology Ltd Verfahren zur Herstellung, Modifizierung oder Reparatur von einkristallinen oder gerichtet erstarrten Körpern
EP1437426A1 (de) * 2003-01-10 2004-07-14 Siemens Aktiengesellschaft Verfahren zum Herstellen von einkristallinen Strukturen
US7094450B2 (en) * 2003-04-30 2006-08-22 General Electric Company Method for applying or repairing thermal barrier coatings
DE102004045049A1 (de) * 2004-09-15 2006-03-16 Man Turbo Ag Verfahren zum Aufbringen einer Schutzschicht
EP1676938A1 (de) * 2004-12-30 2006-07-05 Siemens Aktiengesellschaft Verfahren zur Herstellung eines Bauteils einer Turbine und ein Bauteil einer Turbine
CA2602628A1 (en) * 2005-04-07 2006-10-12 Alstom Technology Ltd. Method for repairing or renewing cooling holes of a coated component of a gas turbine
US7146990B1 (en) * 2005-07-26 2006-12-12 Chromalloy Gas Turbine Corporation Process for repairing sulfidation damaged turbine components
EP1960158B1 (de) * 2005-10-14 2009-03-18 Element Six (Production) (Pty) Ltd. Verfahren zur herstellung eines modifizierten schleifkörperpresslings
EP1941077A1 (de) * 2005-10-26 2008-07-09 Siemens Aktiengesellschaft Technologie zur reinigung von thermoermüdungsrissen in nbs mit hohem anteil von chrom
DE102005051310A1 (de) * 2005-10-26 2007-05-03 Siemens Ag Reinigung von oxidierten oder korrodierten Bauteilen
US7846261B2 (en) * 2006-02-14 2010-12-07 Aeromet Technologies, Inc. Methods of using halogen-containing organic compounds to remove deposits from internal surfaces of turbine engine components
US20070296967A1 (en) * 2006-06-27 2007-12-27 Bhupendra Kumra Gupta Analysis of component for presence, composition and/or thickness of coating
DE102008011747A1 (de) 2008-02-28 2009-09-03 Mtu Aero Engines Gmbh Verfahren zum thermochemischen Reinigen und/oder Strippen von Turbinenbauteilen
DE102008043787B3 (de) * 2008-11-17 2010-07-22 Alstom Technology Ltd. Vorrichtung zur Reinigung oxidierter oder korrodierter Bauteile in Gegenwart eines halogenhaltigen Gasgemisches
US9353625B2 (en) 2009-01-13 2016-05-31 General Electric Technology Gmbh Device for cleaning oxidized or corroded components in the presence of a halogenous gas mixture
US20100126014A1 (en) 2008-11-26 2010-05-27 General Electric Company Repair method for tbc coated turbine components
JP5517163B2 (ja) * 2010-10-07 2014-06-11 株式会社日立製作所 タービン翼の冷却孔加工方法
US10590800B2 (en) 2014-09-25 2020-03-17 General Electric Company Method for selective aluminide diffusion coating removal

Family Cites Families (17)

* Cited by examiner, † Cited by third party
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US2380202A (en) * 1942-08-31 1945-07-10 Aluminum Co Of America Method of thermal treatment
US2679466A (en) * 1952-04-16 1954-05-25 Union Carbide & Carbon Corp Surface decarburization of carboncontaining alloys
US3287181A (en) * 1963-11-07 1966-11-22 Steverding Bernard Treatment of intergranular sulfur corrosion in metals
US3490958A (en) * 1966-04-13 1970-01-20 Du Pont Halocarbon-metal oxide combinations in heat treatment of metals
US3833414A (en) * 1972-09-05 1974-09-03 Gen Electric Aluminide coating removal method
US4098450A (en) * 1977-03-17 1978-07-04 General Electric Company Superalloy article cleaning and repair method
US4188237A (en) * 1978-02-02 1980-02-12 University Of Dayton Method for cleaning metal parts with elemental fluorine
US4328044A (en) * 1978-02-02 1982-05-04 University Of Dayton Method for cleaning metal parts
US4249963A (en) * 1979-07-23 1981-02-10 General Electric Company Method for improving a property of an alloy
US4405379A (en) * 1980-02-06 1983-09-20 University Of Dayton Method for cleaning metal parts
EP0209307B1 (de) * 1985-07-15 1988-09-07 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Reinigung von Metallgegenständen
AU586530B2 (en) * 1986-02-06 1989-07-13 University Of Dayton, The Process for removing protective coatings and bonding layers from metal parts
US4889589A (en) * 1986-06-26 1989-12-26 United Technologies Corporation Gaseous removal of ceramic coatings
US4842183A (en) * 1987-11-25 1989-06-27 Turbine Components Corporation Crack repair in hot section components of superalloys
US5016810A (en) * 1989-08-25 1991-05-21 The United States Of America As Represented By The Department Of Energy Method for improving weldability of nickel aluminide alloys
US5346563A (en) * 1991-11-25 1994-09-13 United Technologies Corporation Method for removing sulfur from superalloy articles to improve their oxidation resistance
US5373986A (en) * 1992-11-04 1994-12-20 Rafferty; Kevin Fluoride cleaning of metal surfaces and product

Also Published As

Publication number Publication date
BR9703597A (pt) 1998-12-22
MX9704465A (es) 1998-10-31
EP0814179A1 (de) 1997-12-29
US5728227A (en) 1998-03-17
DE69730905T2 (de) 2006-02-23
JP4097305B2 (ja) 2008-06-11
CA2204812A1 (en) 1997-12-17
EP0814179B1 (de) 2004-09-29
JPH1072685A (ja) 1998-03-17
CA2204812C (en) 2006-07-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: ROEGER UND KOLLEGEN, 73728 ESSLINGEN