GB1258833A - - Google Patents

Info

Publication number
GB1258833A
GB1258833A GB1258833DA GB1258833A GB 1258833 A GB1258833 A GB 1258833A GB 1258833D A GB1258833D A GB 1258833DA GB 1258833 A GB1258833 A GB 1258833A
Authority
GB
United Kingdom
Prior art keywords
components
pack
aluminides
aluminide
superalloys
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
Application number
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 filed Critical
Publication of GB1258833A publication Critical patent/GB1258833A/en
Expired 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
    • 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
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/60—After-treatment
    • 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
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
    • C23C10/34—Embedding in a powder mixture, i.e. pack cementation
    • C23C10/36—Embedding in a powder mixture, i.e. pack cementation only one element being diffused
    • C23C10/48—Aluminising
    • 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
    • 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
    • F01D5/288—Protective coatings for blades
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
    • 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.]
    • Y10T428/12736—Al-base component
    • Y10T428/1275—Next to Group VIII or IB metal-base component
    • Y10T428/12757—Fe
    • 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
    • Y10T428/12937—Co- or Ni-base component next to Fe-base component

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

1,258,833. Pack aluminizing aluminide coated Ni superalloys. UNITED AIRCRAFT CORP. Oct. 17, 1969 [Oct. 25, 1968], No.51020/69. Heading C7F. Aluminide coated Ni superalloy components which have been subjected to oxidation erosion e.g. gas turbine components, are repaired prior to coating failure by cleaning the component surface to remove oxides without stripping the aluminide coating and then pack aluminizing the components in a pack composition such that aluminides with an Al content in excess of that of the monoaluminide is formed. The components are than heat treated to convert at least some of the aluminides to aluminides having an Al content less than that of Ni 2 Al 3 . The pack mixture contains by weight 5-20% Al, 0À5-3% NH 4 , Cl, balance Al 2 O 3 and is heated to 649-871‹ C. in inert atmosphere with the components embedded in the mixture. A minimum coating thickness of 76À2 microns is formed, heat treatment is then effected at 1038‹-1204‹ C. Several different examples of Ni superalloys are given.
GB1258833D 1968-10-25 1969-10-17 Expired GB1258833A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77085368A 1968-10-25 1968-10-25

Publications (1)

Publication Number Publication Date
GB1258833A true GB1258833A (en) 1971-12-30

Family

ID=25089896

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1258833D Expired GB1258833A (en) 1968-10-25 1969-10-17

Country Status (8)

Country Link
US (1) US3544348A (en)
BE (1) BE740776A (en)
CH (1) CH540346A (en)
ES (1) ES372871A1 (en)
FR (1) FR2021543A1 (en)
GB (1) GB1258833A (en)
NL (1) NL153276B (en)
SE (1) SE344767B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2213841A (en) * 1987-12-17 1989-08-23 Mtu Muenchen Gmbh Aluminium diffusion coating of titanium

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3647517A (en) * 1970-06-22 1972-03-07 Chromalloy American Corp Impact resistant coatings for cobalt-base superalloys and the like
IL36735A0 (en) * 1970-08-19 1971-06-23 Chromalloy American Corp The coating of nickel-base and cobalt-base superalloys and the like
US3837901A (en) * 1970-08-21 1974-09-24 Gen Electric Diffusion-coating of nickel-base superalloy articles
US3922474A (en) * 1971-07-01 1975-11-25 United States Borax Chem Cold-pressed refractory materials
US3839898A (en) * 1972-11-22 1974-10-08 United Aircraft Corp Determination of thermal profile history of high temperature parts
US3887731A (en) * 1973-04-23 1975-06-03 Chromalloy American Corp Corrosion resistant coating system for ferrous metal articles having brazed joints
US3953647A (en) * 1973-10-05 1976-04-27 United Technologies Corporation Graphite fiber reinforced metal matrix composite
US4128522A (en) * 1976-07-30 1978-12-05 Gulf & Western Industries, Inc. Method and maskant composition for preventing the deposition of a coating on a substrate
US4181758A (en) * 1976-07-30 1980-01-01 Gulf & Western Industries, Inc. Method for preventing the deposition of a coating on a substrate
US4729799A (en) * 1986-06-30 1988-03-08 United Technologies Corporation Stress relief of single crystal superalloy articles
US4944858A (en) * 1988-12-08 1990-07-31 United Technologies Corporation Method for applying diffusion aluminide coating
EP0496935B1 (en) * 1991-01-31 1995-04-19 General Electric Company Aluminide processing of articles protected by a thermal barrier coating system
US5161898A (en) * 1991-07-05 1992-11-10 Camco International Inc. Aluminide coated bearing elements for roller cutter drill bits
GB9116332D0 (en) * 1991-07-29 1991-09-11 Diffusion Alloys Ltd Refurbishing of corroded superalloy or heat resistant steel parts and parts so refurbished
GB9218859D0 (en) * 1992-09-05 1992-10-21 Rolls Royce Plc Aluminide-silicide coatings
US5538796A (en) * 1992-10-13 1996-07-23 General Electric Company Thermal barrier coating system having no bond coat
US6333121B1 (en) * 1992-10-13 2001-12-25 General Electric Company Low-sulfur article having a platinum-aluminide protective layer and its preparation
US6689422B1 (en) * 1994-02-16 2004-02-10 Howmet Research Corporation CVD codeposition of A1 and one or more reactive (gettering) elements to form protective aluminide coating
US5650235A (en) * 1994-02-28 1997-07-22 Sermatech International, Inc. Platinum enriched, silicon-modified corrosion resistant aluminide coating
EP0713957A1 (en) * 1994-11-25 1996-05-29 FINMECCANICA S.p.A. AZIENDA ANSALDO Method of repairing the coating of turbine blades
US5897966A (en) * 1996-02-26 1999-04-27 General Electric Company High temperature alloy article with a discrete protective coating and method for making
US6022632A (en) * 1996-10-18 2000-02-08 United Technologies Low activity localized aluminide coating
US5813118A (en) * 1997-06-23 1998-09-29 General Electric Company Method for repairing an air cooled turbine engine airfoil
US6110262A (en) * 1998-08-31 2000-08-29 Sermatech International, Inc. Slurry compositions for diffusion coatings
US6071622A (en) * 1998-10-30 2000-06-06 Beesabathina; Durga Prasad Stabilized two-phase-glass diffusion barrier
US6042880A (en) * 1998-12-22 2000-03-28 General Electric Company Renewing a thermal barrier coating system
US6233822B1 (en) * 1998-12-22 2001-05-22 General Electric Company Repair of high pressure turbine shrouds
US6203847B1 (en) 1998-12-22 2001-03-20 General Electric Company Coating of a discrete selective surface of an article
US6228510B1 (en) 1998-12-22 2001-05-08 General Electric Company Coating and method for minimizing consumption of base material during high temperature service
EP1123987A1 (en) * 2000-02-11 2001-08-16 General Electric Company Repairable diffusion aluminide coatings
US6482470B1 (en) * 2000-07-18 2002-11-19 General Electric Company Diffusion aluminide coated metallic substrate including a thin diffusion portion of controlled thickness
US6605364B1 (en) 2000-07-18 2003-08-12 General Electric Company Coating article and method for repairing a coated surface
US6465040B2 (en) 2001-02-06 2002-10-15 General Electric Company Method for refurbishing a coating including a thermally grown oxide
EP1298230A1 (en) * 2001-10-01 2003-04-02 Siemens Aktiengesellschaft Process for removing corrosion products from metallic parts
US20040180232A1 (en) * 2003-03-12 2004-09-16 General Electric Company Selective region vapor phase aluminided superalloy articles
US7163718B2 (en) * 2003-10-15 2007-01-16 General Electric Company Method of selective region vapor phase aluminizing
DE102004059762A1 (en) * 2004-12-11 2006-06-14 Mtu Aero Engines Gmbh Method of repairing turbine blades
US8038894B2 (en) * 2006-11-29 2011-10-18 General Electric Company Method of selectively stripping an engine-run ceramic coating
DE102008019296A1 (en) * 2008-04-16 2009-10-22 Rolls-Royce Deutschland Ltd & Co Kg Process for producing a fire protection for titanium component bodies of an aircraft gas turbine and titanium component body for an aircraft gas turbine
DE102012010602A1 (en) 2012-05-30 2013-12-05 Dechema-Forschungsinstitut Process for coating a cobalt, nickel and / or iron containing substrate with a corrosion resistant layer
US9771644B2 (en) 2013-11-08 2017-09-26 Praxair S.T. Technology, Inc. Method and apparatus for producing diffusion aluminide coatings
US10053779B2 (en) * 2016-06-22 2018-08-21 General Electric Company Coating process for applying a bifurcated coating

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3129069A (en) * 1956-10-11 1964-04-14 Gen Motors Corp Oxidation-resistant turbine blades
US3079276A (en) * 1960-10-14 1963-02-26 Union Carbide Corp Vapor diffusion coating process
US3141744A (en) * 1961-06-19 1964-07-21 Dwight E Couch Wear-resistant nickel-aluminum coatings
US3345197A (en) * 1963-08-09 1967-10-03 Howmet Corp Aluminizing process and composition
US3257230A (en) * 1964-03-24 1966-06-21 Chromalloy American Corp Diffusion coating for metals
GB1063412A (en) * 1966-02-23 1967-03-30 Rolls Royce Mixture for aluminising metals and a process of aluminising
US3450512A (en) * 1966-07-05 1969-06-17 United Aircraft Corp Coated nickel base engine alloys

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2213841A (en) * 1987-12-17 1989-08-23 Mtu Muenchen Gmbh Aluminium diffusion coating of titanium
GB2213841B (en) * 1987-12-17 1992-01-15 Mtu Muenchen Gmbh Method for the aluminium diffusion coating of components which consist of titanium alloys

Also Published As

Publication number Publication date
US3544348A (en) 1970-12-01
DE1952370B2 (en) 1972-07-20
CH540346A (en) 1973-08-15
NL153276B (en) 1977-05-16
DE1952370A1 (en) 1970-08-27
ES372871A1 (en) 1971-11-01
FR2021543A1 (en) 1970-07-24
BE740776A (en) 1970-04-01
NL6915857A (en) 1970-04-28
SE344767B (en) 1972-05-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years