GB722797A - Improvements in or relating to coating metals - Google Patents

Improvements in or relating to coating metals

Info

Publication number
GB722797A
GB722797A GB2845050A GB2845050A GB722797A GB 722797 A GB722797 A GB 722797A GB 2845050 A GB2845050 A GB 2845050A GB 2845050 A GB2845050 A GB 2845050A GB 722797 A GB722797 A GB 722797A
Authority
GB
United Kingdom
Prior art keywords
alkaline earth
elements
inert gas
atmosphere
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
GB2845050A
Inventor
Robert Lionel Samuel
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 GB2845050A priority Critical patent/GB722797A/en
Publication of GB722797A publication Critical patent/GB722797A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)

Abstract

Iron, steel or nickel is heated in contact with or in proximity to one or more of the elements Cr, Mo, W, V, Mn, Zr, Ti, Al, Si and Cu or an alloy containing one or more of these elements at a temperature of at least 850 DEG C., preferably 900-1150 DEG C., in an atmosphere substantially free from hydrogen halides and containing not more than four parts by volume of hydrogen per part of substantially inert gas, and in the presence of a halide of an alkali metal or of an alkaline earth metal. The inert gas may be helium but is preferably nitrogen, in which case the atmosphere may be provided by the use of ammonia gas or by means of an alkaline earth amide or hydrazine. In examples, halides used include potassium iodide, sodium chloride, potassium bromide and sodium fluoride; iodides are preferred. Specifications 646,637, 646,638 and 672,275 are referred to.
GB2845050A 1950-11-21 1950-11-21 Improvements in or relating to coating metals Expired GB722797A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2845050A GB722797A (en) 1950-11-21 1950-11-21 Improvements in or relating to coating metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2845050A GB722797A (en) 1950-11-21 1950-11-21 Improvements in or relating to coating metals

Publications (1)

Publication Number Publication Date
GB722797A true GB722797A (en) 1955-02-02

Family

ID=10275812

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2845050A Expired GB722797A (en) 1950-11-21 1950-11-21 Improvements in or relating to coating metals

Country Status (1)

Country Link
GB (1) GB722797A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2819208A (en) * 1950-06-27 1958-01-07 Onera (Off Nat Aerospatiale) Chromizing and analogous methods
US2865791A (en) * 1954-03-05 1958-12-23 Metallgesellschaft Ag Metal nitride coating process
US2867546A (en) * 1956-02-08 1959-01-06 Ohio Commw Eng Co Gas plating of aluminum using aluminum trilsobutyl
US2962391A (en) * 1959-03-16 1960-11-29 David Craven Method of chromizing
US3071491A (en) * 1960-10-05 1963-01-01 Charles W Horn Titanium coating process
US3072983A (en) * 1960-05-31 1963-01-15 Brenner Abner Vapor deposition of tungsten
US3073015A (en) * 1960-05-16 1963-01-15 Chromalloy Corp Diffusion coating of metals
US3257230A (en) * 1964-03-24 1966-06-21 Chromalloy American Corp Diffusion coating for metals
US3432280A (en) * 1964-02-19 1969-03-11 Bristol Siddeley Engines Ltd Refractory metal articles
US4369233A (en) * 1978-07-21 1983-01-18 Elbar B.V., Industrieterrien "Spikweien" Process to apply a protecting silicon containing coating on specimen produced from superalloys and product
CN115190916A (en) * 2019-12-30 2022-10-14 C4激光技术有限公司 Brake disc with wear and corrosion resistance and method for producing same

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2819208A (en) * 1950-06-27 1958-01-07 Onera (Off Nat Aerospatiale) Chromizing and analogous methods
US2865791A (en) * 1954-03-05 1958-12-23 Metallgesellschaft Ag Metal nitride coating process
US2867546A (en) * 1956-02-08 1959-01-06 Ohio Commw Eng Co Gas plating of aluminum using aluminum trilsobutyl
US2962391A (en) * 1959-03-16 1960-11-29 David Craven Method of chromizing
US3073015A (en) * 1960-05-16 1963-01-15 Chromalloy Corp Diffusion coating of metals
US3072983A (en) * 1960-05-31 1963-01-15 Brenner Abner Vapor deposition of tungsten
US3071491A (en) * 1960-10-05 1963-01-01 Charles W Horn Titanium coating process
US3432280A (en) * 1964-02-19 1969-03-11 Bristol Siddeley Engines Ltd Refractory metal articles
US3257230A (en) * 1964-03-24 1966-06-21 Chromalloy American Corp Diffusion coating for metals
US4369233A (en) * 1978-07-21 1983-01-18 Elbar B.V., Industrieterrien "Spikweien" Process to apply a protecting silicon containing coating on specimen produced from superalloys and product
CN115190916A (en) * 2019-12-30 2022-10-14 C4激光技术有限公司 Brake disc with wear and corrosion resistance and method for producing same
CN115190916B (en) * 2019-12-30 2024-04-09 C4激光技术有限公司 Brake disc with wear resistance and corrosion resistance and method for producing the same

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