CA2483232C - Methode d'aluminiage selectif en phase vapeur d'une region - Google Patents

Methode d'aluminiage selectif en phase vapeur d'une region Download PDF

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Publication number
CA2483232C
CA2483232C CA2483232A CA2483232A CA2483232C CA 2483232 C CA2483232 C CA 2483232C CA 2483232 A CA2483232 A CA 2483232A CA 2483232 A CA2483232 A CA 2483232A CA 2483232 C CA2483232 C CA 2483232C
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CA
Canada
Prior art keywords
aluminum
weight percent
substrate
diffusion aluminide
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.)
Active
Application number
CA2483232A
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English (en)
Other versions
CA2483232A1 (fr
Inventor
Nripendra Nath Das
Joseph David Rigney
Jeffrey Allan Pfaendtner
Matthew David Saylor
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
Priority claimed from US10/685,637 external-priority patent/US7163718B2/en
Application filed by General Electric Co filed Critical General Electric Co
Publication of CA2483232A1 publication Critical patent/CA2483232A1/fr
Application granted granted Critical
Publication of CA2483232C publication Critical patent/CA2483232C/fr
Active legal-status Critical Current
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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
    • C23C10/06—Solid state diffusion of only metal elements or silicon into metallic material surfaces using gases
    • 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
    • C23C10/02—Pretreatment of the material to be coated
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • 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

Abstract

La présente invention a pour objet un procédé de formation de revêtements de diffusion d'aluminure sur la surface nue (36, 38) d'un substrat (42), sans interdiffusion d'une quantité suffisante d'aluminium dans une couche de revêtement (44) pour nuire au potentiel de croissance du revêtement (44) et aux propriétés mécaniques de ladite couche de revêtement (44). Un substrat métallique (42) est divulgué, il est constitué d'une surface externe (36, 38) et d'un passage interne (34) défini par une surface interne (36), au moins une partie de la surface externe (38) du substrat (42) en cours de revêtement par une couche de revêtement (44) choisie dans le groupe constitué de -NiAl-base, MCrAlX, un aluminure pour diffusion directe, un aluminure pour diffusion indirecte, un aluminure pour diffusion en caisse et une diffusion de pâte sur ledit substrat (42). La surface externe (38) du substrat (42) est nettoyée. Le substrat métallique (42) est soumis à un procédé de dépôt d'aluminium en phase vapeur effectué par un activateur fluoré, choisi dans un groupe constitué d'AlF3, de CrF3, de NH4F et de combinaisons de ceux-ci, à un taux de l'ordre d'environ 0,036 mole de fluor par pi3/h de vecteur gazeux à environ 0,18 mole de fluor par pi3/h de vecteur gazeux, à une température de l'ordre d'environ 1350 oF (730 oC) à environ 1925 oF (1050 oC), au moyen d'un vecteur gazeux choisi dans le groupe constitué de l'argon, de l'azote, de l'hydrogène et de combinaisons de ceux-ci, le vecteur gazeux étant fourni avec un débit d'environ 20 pi3/h à environ 120 pi3/h pour une période d'environ 2 h à environ 10 h. Le substrat (42) est ensuite refroidi. La présente invention a aussi pour objet un article (20) en superalliage enduit d'une couche d'aluminure pour diffusion (40) par le procédé de revêtement de diffusion d'aluminure de la présente invention.
CA2483232A 2003-10-15 2004-09-30 Methode d'aluminiage selectif en phase vapeur d'une region Active CA2483232C (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/685,637 US7163718B2 (en) 2003-10-15 2003-10-15 Method of selective region vapor phase aluminizing
US10/685,637 2003-10-15
US72253404A 2004-02-05 2004-02-05
US10/772,534 2004-02-05

Publications (2)

Publication Number Publication Date
CA2483232A1 CA2483232A1 (fr) 2005-04-15
CA2483232C true CA2483232C (fr) 2010-07-20

Family

ID=34437420

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2483232A Active CA2483232C (fr) 2003-10-15 2004-09-30 Methode d'aluminiage selectif en phase vapeur d'une region

Country Status (1)

Country Link
CA (1) CA2483232C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3032976B1 (fr) * 2015-02-23 2017-03-17 Snecma Procede de depot local de metal precieux

Also Published As

Publication number Publication date
CA2483232A1 (fr) 2005-04-15

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