GB1296729A - - Google Patents

Info

Publication number
GB1296729A
GB1296729A GB1296729DA GB1296729A GB 1296729 A GB1296729 A GB 1296729A GB 1296729D A GB1296729D A GB 1296729DA GB 1296729 A GB1296729 A GB 1296729A
Authority
GB
United Kingdom
Prior art keywords
coating
weight
diffusion
sept
fluoride
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 GB1296729A publication Critical patent/GB1296729A/en
Expired 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
    • C23C10/28—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
    • C23C10/58—Embedding in a powder mixture, i.e. pack cementation more than one element being diffused in more than one step

Abstract

1296729 Coating with metals by diffusion HOWMET CORP 4 Sept 1970 [8 Sept 1969] 42477/70 Heading C7F Nickel or cobalt or alloys thereof are pack diffusion coated first with W or Cr and then with Al. The thickness of the first coating is À0001 to À0005 of an inch and that of the second coating is À001 to À005 of an inch. The first pack contains 1 to 30% by weight of Cr or W, a finely divided filler e.g. alumina, and À01 to 5% by weight of halide, e.g. ammonium chloride or fluoride. The diffusion is carried out in argon or hydrogen at 1700 to 2000‹F. The second pack contains À1 to 10% by weight of Al, a filler, e.g. alumina, and À01 to 5% of ammonium chloride or fluoride. The reaction takes place in hydrogen or an inert atmosphere at 1800 to 2000‹F.
GB1296729D 1969-09-08 1970-09-04 Expired GB1296729A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85619369A 1969-09-08 1969-09-08

Publications (1)

Publication Number Publication Date
GB1296729A true GB1296729A (en) 1972-11-15

Family

ID=25323041

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1296729D Expired GB1296729A (en) 1969-09-08 1970-09-04

Country Status (3)

Country Link
JP (1) JPS4940343B1 (en)
FR (1) FR2061075A5 (en)
GB (1) GB1296729A (en)

Also Published As

Publication number Publication date
JPS4940343B1 (en) 1974-11-01
FR2061075A5 (en) 1971-06-18
DE2043964B2 (en) 1975-08-21
DE2043964A1 (en) 1971-04-29

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee