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GB686110A - A process for the diffusion of metals - Google Patents

A process for the diffusion of metals

Info

Publication number
GB686110A
GB686110A GB3061749A GB3061749A GB686110A GB 686110 A GB686110 A GB 686110A GB 3061749 A GB3061749 A GB 3061749A GB 3061749 A GB3061749 A GB 3061749A GB 686110 A GB686110 A GB 686110A
Authority
GB
United Kingdom
Prior art keywords
metal
molybdenum
tungsten
steel
mix
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
GB3061749A
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 GB3061749A priority Critical patent/GB686110A/en
Publication of GB686110A publication Critical patent/GB686110A/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
    • C23C10/18—Solid state diffusion of only metal elements or silicon into metallic material surfaces using liquids, e.g. salt baths, liquid suspensions
    • C23C10/20—Solid state diffusion of only metal elements or silicon into metallic material surfaces using liquids, e.g. salt baths, liquid suspensions only one element being diffused
    • C23C10/24—Salt bath containing the element to be 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)
  • Chemically Coating (AREA)
  • Catalysts (AREA)

Abstract

A metal is heated in a fused bath consisting wholly or predominantly of a silicate, preferably water-soluble, a metal halide which forms complex salts and a diffusing metal, or alloy thereof, in powder form. Chromium, molybdenum, tungsten, vanadium, aluminium or silicon may be diffused into iron, steel, nickel, cobalt, molybdenum, tungsten or alloys, thereof. A halide, preferably the fluoride, of the diffusing metal may be used and fluosilicates and borosilicates may be added. Sodium silicate may first be formed by fusing powdered silica and anhydrous sodium carbonate, chromium fluoride and potassium silicofluoride added and the mix heated to 1100 DEG C and stirred; pieces of steel may then be immersed for a few minutes to 4 hours in the mix at 950 DEG to 1300 DEG C.
GB3061749A 1949-11-29 1949-11-29 A process for the diffusion of metals Expired GB686110A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3061749A GB686110A (en) 1949-11-29 1949-11-29 A process for the diffusion of metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3061749A GB686110A (en) 1949-11-29 1949-11-29 A process for the diffusion of metals

Publications (1)

Publication Number Publication Date
GB686110A true GB686110A (en) 1953-01-21

Family

ID=10310469

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3061749A Expired GB686110A (en) 1949-11-29 1949-11-29 A process for the diffusion of metals

Country Status (1)

Country Link
GB (1) GB686110A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0919642A3 (en) * 1997-11-28 2001-12-19 Maizuru Corporation Method for treating surface of ferrous material and salt bath furnace used therefor
RU2326183C1 (en) * 2006-10-11 2008-06-10 Евгений Григорьевич Иванов Suspension for aluminium chromosiliconising of parts made of heat-resistant nickel alloys
CN108624839A (en) * 2018-06-22 2018-10-09 中国科学院上海应用物理研究所 A kind of preparation method of stainless steel aluminized coating

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0919642A3 (en) * 1997-11-28 2001-12-19 Maizuru Corporation Method for treating surface of ferrous material and salt bath furnace used therefor
RU2326183C1 (en) * 2006-10-11 2008-06-10 Евгений Григорьевич Иванов Suspension for aluminium chromosiliconising of parts made of heat-resistant nickel alloys
CN108624839A (en) * 2018-06-22 2018-10-09 中国科学院上海应用物理研究所 A kind of preparation method of stainless steel aluminized coating

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