GB1508473A - Aluminide diffusion coating - Google Patents

Aluminide diffusion coating

Info

Publication number
GB1508473A
GB1508473A GB44958/77A GB4495877A GB1508473A GB 1508473 A GB1508473 A GB 1508473A GB 44958/77 A GB44958/77 A GB 44958/77A GB 4495877 A GB4495877 A GB 4495877A GB 1508473 A GB1508473 A GB 1508473A
Authority
GB
United Kingdom
Prior art keywords
aluminium
halide
aluminide
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
Application number
GB44958/77A
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 GB1508473A publication Critical patent/GB1508473A/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
    • C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
    • C23C10/30—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes using a layer of powder or paste on the surface
    • 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
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/06—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of metallic material
    • C23C16/08—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of metallic material from metal halides
    • C23C16/12—Deposition of aluminium only

Landscapes

  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Powder Metallurgy (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

1508473 Aluminiding nickel or cobalt alloys GENERAL ELECTRIC CO 28 Feb 1975 [1 March 1974] 44958/77 Heading C7F A localized patch aluminide diffusion coating is applied to a surface having an aluminide diffusion coating is obtained by, cleaning the article surface, placing in contact with the surface an alloy powder consisting of 51 to 61 wt. per cent of aluminium, the balance being iron, subjecting the surface and the adjacent aluminide coating to a non-oxidizing atmosphere in the presence of a halide salt activator, which will react with the alloy powder to provide an aluminium halide and then applying heat in the range of 1700-2100‹F for sufficient time to react forming the aluminium halide and to transfer and diffuse aluminium from the aluminium halide into the article surface and into the adjacent aluminide coating. The article surface may be of nickel or cobalt, and the powder may be of 100-325 mesh. Suitable halide activators are NaF, KF, NH 4 Cl and NH 4 F.
GB44958/77A 1974-03-01 1975-02-28 Aluminide diffusion coating Expired GB1508473A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44731874A 1974-03-01 1974-03-01

Publications (1)

Publication Number Publication Date
GB1508473A true GB1508473A (en) 1978-04-26

Family

ID=23775886

Family Applications (3)

Application Number Title Priority Date Filing Date
GB44958/77A Expired GB1508473A (en) 1974-03-01 1975-02-28 Aluminide diffusion coating
GB8510/75A Expired GB1508471A (en) 1974-03-01 1975-02-28 Tapes
GB44957/77A Expired GB1508472A (en) 1974-03-01 1975-02-28 Aluminide diffusion coating

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB8510/75A Expired GB1508471A (en) 1974-03-01 1975-02-28 Tapes
GB44957/77A Expired GB1508472A (en) 1974-03-01 1975-02-28 Aluminide diffusion coating

Country Status (8)

Country Link
JP (1) JPS5856750B2 (en)
BE (1) BE822348A (en)
CA (1) CA1051282A (en)
DE (3) DE2502609C2 (en)
FR (1) FR2262702B1 (en)
GB (3) GB1508473A (en)
IL (1) IL45597A (en)
IT (1) IT1033219B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8496990B2 (en) 2008-09-08 2013-07-30 Rolls-Royce Plc Method of repairing a coating on an article
US8609185B2 (en) 2008-09-08 2013-12-17 Rolls-Royce, Plc Method of repairing an aluminide coating on an article

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4726101A (en) * 1986-09-25 1988-02-23 United Technologies Corporation Turbine vane nozzle reclassification
DE3726073C1 (en) * 1987-08-06 1988-07-14 Thyssen Edelstahlwerke Ag Process for the production of thin-walled semi-finished products and their uses
US8173206B2 (en) * 2007-12-20 2012-05-08 General Electric Company Methods for repairing barrier coatings

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3837901A (en) * 1970-08-21 1974-09-24 Gen Electric Diffusion-coating of nickel-base superalloy articles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8496990B2 (en) 2008-09-08 2013-07-30 Rolls-Royce Plc Method of repairing a coating on an article
US8609185B2 (en) 2008-09-08 2013-12-17 Rolls-Royce, Plc Method of repairing an aluminide coating on an article

Also Published As

Publication number Publication date
JPS5856750B2 (en) 1983-12-16
DE2502609C2 (en) 1983-11-10
FR2262702B1 (en) 1977-11-10
BE822348A (en) 1975-03-14
DE2560464C2 (en) 1984-07-19
GB1508472A (en) 1978-04-26
IL45597A0 (en) 1974-11-29
FR2262702A1 (en) 1975-09-26
DE2502609A1 (en) 1975-09-04
IT1033219B (en) 1979-07-10
DE2560537C1 (en) 1986-02-13
GB1508471A (en) 1978-04-26
IL45597A (en) 1977-12-30
JPS50124842A (en) 1975-10-01
CA1051282A (en) 1979-03-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940228