GB1405878A - Chromising ferrous metal substrates - Google Patents

Chromising ferrous metal substrates

Info

Publication number
GB1405878A
GB1405878A GB3389071A GB3389071A GB1405878A GB 1405878 A GB1405878 A GB 1405878A GB 3389071 A GB3389071 A GB 3389071A GB 3389071 A GB3389071 A GB 3389071A GB 1405878 A GB1405878 A GB 1405878A
Authority
GB
United Kingdom
Prior art keywords
ferrous
halide
chromium source
chromising
oxide
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
GB3389071A
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.)
Solvay Solutions UK Ltd
Original Assignee
Albright and Wilson Ltd
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 Albright and Wilson Ltd filed Critical Albright and Wilson Ltd
Priority to GB3389071A priority Critical patent/GB1405878A/en
Priority to DE19722235424 priority patent/DE2235424A1/en
Publication of GB1405878A publication Critical patent/GB1405878A/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
    • C23C10/34—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
    • C23C10/38—Chromising
    • C23C10/40—Chromising of ferrous surfaces
    • C23C10/42—Chromising of ferrous surfaces in the presence of volatile transport additives, e.g. halogenated substances

Abstract

1405878 Chromizing ferrous substrates ALBRIGHT AND WILSON Ltd 12 July 1972 [20 July 1971] 33890/71 Heading C7F A ferrous substrate is chromized using a chromium source, a metal halide and a metal oxide e.g. an iron oxide, the chromium source being adherent to or incorporated in a flexible non- metallic sheet, e.g. asbestos paper or plastics, and the whole being heated to 450 to 750‹ C for at least 4 hours, and then to at least 800‹ C. The halide may be ferrous or ferric, manganous or aluminium chloride, fluoride or bromide or an alkali metal fluoride, chloride, bromide or iodide. The oxide may be a powder, which may be mixed with the chromium source, or it may be present as a coating formed on the substrate, e.g. by heating in air. The halide may be present in a second flexible sheet.
GB3389071A 1971-07-20 1971-07-20 Chromising ferrous metal substrates Expired GB1405878A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3389071A GB1405878A (en) 1971-07-20 1971-07-20 Chromising ferrous metal substrates
DE19722235424 DE2235424A1 (en) 1971-07-20 1972-07-19 PROCESS FOR INCHROMING FERROUS METAL SUBSTRATES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3389071A GB1405878A (en) 1971-07-20 1971-07-20 Chromising ferrous metal substrates

Publications (1)

Publication Number Publication Date
GB1405878A true GB1405878A (en) 1975-09-10

Family

ID=10358773

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3389071A Expired GB1405878A (en) 1971-07-20 1971-07-20 Chromising ferrous metal substrates

Country Status (2)

Country Link
DE (1) DE2235424A1 (en)
GB (1) GB1405878A (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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE794758A (en) * 1973-01-30 1973-05-16 Cockerill Ougree Province Et E PROCESS FOR MANUFACTURING A FLAT PRODUCT PROVIDED WITH A STAINLESS COATING

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
DE2235424A1 (en) 1973-02-15

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee