GB749056A - Improvements in or relating to the chromium-diffusion treatment of metals - Google Patents

Improvements in or relating to the chromium-diffusion treatment of metals

Info

Publication number
GB749056A
GB749056A GB2913452A GB2913452A GB749056A GB 749056 A GB749056 A GB 749056A GB 2913452 A GB2913452 A GB 2913452A GB 2913452 A GB2913452 A GB 2913452A GB 749056 A GB749056 A GB 749056A
Authority
GB
United Kingdom
Prior art keywords
chromium
iodide
fluoride
metals
relating
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
GB2913452A
Inventor
Robert Lionel Samuel
Norman Anthony Lockington
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.)
Diffusion Alloys Ltd
Original Assignee
Diffusion Alloys 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 Diffusion Alloys Ltd filed Critical Diffusion Alloys Ltd
Priority to GB2913452A priority Critical patent/GB749056A/en
Publication of GB749056A publication Critical patent/GB749056A/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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Chromium is diffused in another metal by heating the latter in the presence of a fluoride or iodide of chromium and an oxide of chromium. The fluoride or iodide may be produced in situ by using chromium metal or ferro-chrome and ammonium fluoride or iodide or hydrogen fluoride or iodide alone or diluted with helium, hydrogen, ammonia or cracked ammonia. The chromising of iron and steel, nickel, tungsten and molybdenum is described. Specifications 646,637 and 646,641 are referred to.
GB2913452A 1952-11-18 1952-11-18 Improvements in or relating to the chromium-diffusion treatment of metals Expired GB749056A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2913452A GB749056A (en) 1952-11-18 1952-11-18 Improvements in or relating to the chromium-diffusion treatment of metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2913452A GB749056A (en) 1952-11-18 1952-11-18 Improvements in or relating to the chromium-diffusion treatment of metals

Publications (1)

Publication Number Publication Date
GB749056A true GB749056A (en) 1956-05-16

Family

ID=10286709

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2913452A Expired GB749056A (en) 1952-11-18 1952-11-18 Improvements in or relating to the chromium-diffusion treatment of metals

Country Status (1)

Country Link
GB (1) GB749056A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3061924A (en) * 1959-03-06 1962-11-06 Continental Can Co Production of internally cladded laminate metal stock
US3257230A (en) * 1964-03-24 1966-06-21 Chromalloy American Corp Diffusion coating for metals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3061924A (en) * 1959-03-06 1962-11-06 Continental Can Co Production of internally cladded laminate metal stock
US3257230A (en) * 1964-03-24 1966-06-21 Chromalloy American Corp Diffusion coating for metals

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