GB798853A - Improvements in or relating to processes for depositing coatings of aluminium or of aluminium-base alloys on a basis metal and for the production of pulverous aluminium-base alloys - Google Patents

Improvements in or relating to processes for depositing coatings of aluminium or of aluminium-base alloys on a basis metal and for the production of pulverous aluminium-base alloys

Info

Publication number
GB798853A
GB798853A GB15670/55A GB1567055A GB798853A GB 798853 A GB798853 A GB 798853A GB 15670/55 A GB15670/55 A GB 15670/55A GB 1567055 A GB1567055 A GB 1567055A GB 798853 A GB798853 A GB 798853A
Authority
GB
United Kingdom
Prior art keywords
aluminium
metal
chloride
base alloys
basis metal
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
GB15670/55A
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 Plania Werke AG
Original Assignee
Siemens Plania Werke 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 Plania Werke AG filed Critical Siemens Plania Werke AG
Publication of GB798853A publication Critical patent/GB798853A/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
    • C23C10/06—Solid state diffusion of only metal elements or silicon into metallic material surfaces using gases
    • C23C10/08—Solid state diffusion of only metal elements or silicon into metallic material surfaces using gases only one element being diffused

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Vapour Deposition (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

A basis metal is coated with Al or Al-base alloy by treatment with vaporous Al sub-chloride (AlCl and/or AlCl2) which has been produced by reacting a vaporous chloride of a foreign metal (defined as a metal other than the basis metal and Al, and to include Si) with Al or an Alalloy at a temperature above 500 DEG C., the sub-chloride having undergone no cooling to below the temperature of the treatment of the basis metal between the time of its formation and the time it is used in said treatment. Preferably, the foreign metal chloride, which may for example be SiCl4 and/or TiCl4, is carried in a current of inert or reducing gas over the solid, or through the liquid, Al or alloy thereof, the sub-chloride thus formed being fed in the carrier-gas to the basis metal. Suitable Al alloys for reaction with the foreign metal chloride are the aluminides of Si, Fe, Ni, Ti, Zr, and Mo. Coatings may be formed on Fe, alloy steels, Ni, Cr-Ni alloys and Mo and alloys thereof. Two specific examples of the process are given. If the basis metal is in pulverous form it may be converted wholly into an alloy of the basis metal and Al by extended treatment with the sub-chloride. An example discloses the conversion of Mo powder into Mo aluminide powder.
GB15670/55A 1954-05-31 1955-05-31 Improvements in or relating to processes for depositing coatings of aluminium or of aluminium-base alloys on a basis metal and for the production of pulverous aluminium-base alloys Expired GB798853A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT798853X 1954-05-31

Publications (1)

Publication Number Publication Date
GB798853A true GB798853A (en) 1958-07-30

Family

ID=3681113

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15670/55A Expired GB798853A (en) 1954-05-31 1955-05-31 Improvements in or relating to processes for depositing coatings of aluminium or of aluminium-base alloys on a basis metal and for the production of pulverous aluminium-base alloys

Country Status (1)

Country Link
GB (1) GB798853A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2511396A1 (en) * 1981-08-14 1983-02-18 Electricite De France Pack diffusion aluminising - esp. of austenitic stainless steel to improve resistance to high temp. sulphur
EP0072861A1 (en) * 1981-02-26 1983-03-02 Alloy Surfaces Co Inc Diffusion coating and products.
US4698244A (en) * 1985-10-31 1987-10-06 Air Products And Chemicals, Inc. Deposition of titanium aluminides
GB2256876A (en) * 1991-06-18 1992-12-23 Mtu Muenchen Gmbh Aluminium gas diffusion coating using heated aluminium particles

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072861A1 (en) * 1981-02-26 1983-03-02 Alloy Surfaces Co Inc Diffusion coating and products.
EP0072861A4 (en) * 1981-02-26 1984-09-18 Alloy Surfaces Co Inc Diffusion coating and products.
FR2511396A1 (en) * 1981-08-14 1983-02-18 Electricite De France Pack diffusion aluminising - esp. of austenitic stainless steel to improve resistance to high temp. sulphur
US4698244A (en) * 1985-10-31 1987-10-06 Air Products And Chemicals, Inc. Deposition of titanium aluminides
GB2256876A (en) * 1991-06-18 1992-12-23 Mtu Muenchen Gmbh Aluminium gas diffusion coating using heated aluminium particles
FR2677998A1 (en) * 1991-06-18 1992-12-24 Mtu Muenchen Gmbh METHOD AND APPARATUS FOR MAKING A GAS DIFFUSION LAYER THROUGH AN ALUMINUM WELL.
GB2256876B (en) * 1991-06-18 1995-03-22 Mtu Muenchen Gmbh Method of gas diffusion coating

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