GB250975A - Improved method of protecting metals against oxidation at high temperatures - Google Patents

Improved method of protecting metals against oxidation at high temperatures

Info

Publication number
GB250975A
GB250975A GB10220/26A GB1022026A GB250975A GB 250975 A GB250975 A GB 250975A GB 10220/26 A GB10220/26 A GB 10220/26A GB 1022026 A GB1022026 A GB 1022026A GB 250975 A GB250975 A GB 250975A
Authority
GB
United Kingdom
Prior art keywords
high temperatures
chromium
improved method
against oxidation
protecting metals
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
GB10220/26A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB250975A publication Critical patent/GB250975A/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
    • C23C10/52—Embedding in a powder mixture, i.e. pack cementation more than one element being diffused in one step
    • C23C10/54—Diffusion of at least chromium
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
    • C21D1/70—Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Powder Metallurgy (AREA)

Abstract

250,975. British Thomson-Houston Co., Ltd., (Assignees of Kelley, F. C.). ApriI 17, 1925, [Convention date]. Cementation.- In a process for protecting metals such as iron, nickel, molybdenum or tungsten from corrosion, as described in Specification 150,102, a small proportion, up to 10 per cent, of powdered silicon is added to the chromium or chromium mixture and the metal is heated in contact with the chromium &c. under non-oxidizing conditions, as for example in a hydrogen furnace at 1000-1500‹ C. In an example iron is heated in hydrogen for six hours at approximately 1350‹ C.
GB10220/26A 1925-04-17 1926-04-19 Improved method of protecting metals against oxidation at high temperatures Expired GB250975A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US250975XA 1925-04-17 1925-04-17

Publications (1)

Publication Number Publication Date
GB250975A true GB250975A (en) 1927-03-24

Family

ID=21824048

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10220/26A Expired GB250975A (en) 1925-04-17 1926-04-19 Improved method of protecting metals against oxidation at high temperatures

Country Status (1)

Country Link
GB (1) GB250975A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1096148B (en) * 1955-05-02 1960-12-29 Chromalloy Corp Process for diffusion chromating of molybdenum, nickel or cobalt alloys or metal borides, metal carbides

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1096148B (en) * 1955-05-02 1960-12-29 Chromalloy Corp Process for diffusion chromating of molybdenum, nickel or cobalt alloys or metal borides, metal carbides

Similar Documents

Publication Publication Date Title
GB250975A (en) Improved method of protecting metals against oxidation at high temperatures
US2046638A (en) Process of treating metal
GB279490A (en)
US1472850A (en) Method of cementation of boron into the surface of iron or steel
GB159102A (en) Improvements in and relating to the surface treatment of metals
GB522252A (en) Improvements relating to the manufacture of austenitic ferrous alloy articles
GB303034A (en) Improvements in the production of metallic coatings on iron or steel, or alloys thereof
GB215348A (en) A malleable and ductile tungsten composition or alloy suitable for use in the manufacture of lighting bodies or filaments
GB723899A (en) Improvement in protective coating for molybdenum and molybdenum base alloys
GB362375A (en) Improvements in and relating to the manufacture of cast iron articles
GB315444A (en) Process of making commercially pure iron alloys
GB236033A (en) Improvements relating to the coating of metals with other metals
GB193917A (en) Improved method of cementation of boron into the surface of iron or steel
GB211122A (en) Improvements in processes for coating metals
GB373292A (en) Improvements in or relating to the heat treatment of alloy steel articles
GB271454A (en) Improvements in or relating to copper-beryllium alloys and their treatment
GB513564A (en) Improvements relating to wear-resistant material
GB378484A (en) Improvements relating to sintered hard metallic alloys and methods for the manufacture thereof
GB570570A (en) Improvements in or relating to nitriding processes
GB250560A (en) Improvements relating to steel alloys
GB261502A (en) Improvements in and relating to protective coatings for metals
GB199900A (en) Retorts and method of protecting the same
GB314971A (en) Improvements in and relating to magnetic alloys and methods of making the same
GB179306A (en) Improvements in and relating to alloys
GB225501A (en) Process for the manufacture of high quality grey cast iron