GB895736A - Articles made of heat resistant alloys - Google Patents

Articles made of heat resistant alloys

Info

Publication number
GB895736A
GB895736A GB19263/56A GB1926356A GB895736A GB 895736 A GB895736 A GB 895736A GB 19263/56 A GB19263/56 A GB 19263/56A GB 1926356 A GB1926356 A GB 1926356A GB 895736 A GB895736 A GB 895736A
Authority
GB
United Kingdom
Prior art keywords
beryllium
heating
chromium
cobalt
iron
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
GB19263/56A
Inventor
Tristram Allan Taylor
Norman Stephenson
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.)
SECR AVIATION
Minister of Aviation
Original Assignee
SECR AVIATION
Minister of Aviation
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 SECR AVIATION, Minister of Aviation filed Critical SECR AVIATION
Priority to GB19263/56A priority Critical patent/GB895736A/en
Priority to US666195A priority patent/US3059325A/en
Publication of GB895736A publication Critical patent/GB895736A/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
    • C23C10/06—Solid state diffusion of only metal elements or silicon into metallic material surfaces using gases
    • C23C10/08—Solid state diffusion of only metal elements or silicon into metallic material surfaces using gases only one element being diffused
    • C23C10/10—Chromising
    • 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
    • C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9335—Product by special process
    • Y10S428/941—Solid state alloying, e.g. diffusion, to disappearance of an original layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
    • Y10T428/12063—Nonparticulate metal component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12729—Group IIA metal-base component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12931—Co-, Fe-, or Ni-base components, alternative to each other

Abstract

An article made of a heat resistant alloy comprising one or more of the metals nickel, cobalt, and iron as the principal constituent, and also comprising chromium, has an outer layer containing beryllium, but substantially free of chromium. Gas turbine parts, e.g. rotor or stator blades, and tubes of high temperature boilers, may be coated in order to withstand high temperature and to resist corrosion by vanadium compounds. A powdered eutectic alloy of beryllium with nickel, cobalt, or iron may be applied in suspension in xylene to the article, which is then heated to 1125 DEG C. in vacuo. Another method is to apply a coating of nickel, cobalt, or iron by electroplating, flame spraying, sputtering, vacuum evaporation, or hot dipping, and then to paint on a suspension of beryllium powder in xylene, followed by drying and heating to 1200 DEG C. out of contact with air. Alternatively the surface of the article may be depleted in chromium by heating in air to form a chromic oxide layer, which is removed, or by heating in molten caustic soda or potash; the surface is then cleaned and enriched in beryllium by painting or spraying with a suspension of beryllium or beryllium alloy powder and then heating in vacuo or an inert atmosphere.ALSO:An article made of a heat resistant alloy comprising one or more of the metals nickel, cobalt, and iron as the principal constituent, and also comprising chromium, has an outer layer containing beryllium, but substantially free of chromium. Compositions of various alloys which may be coated are given, other elements present being carbon, titanium, aluminium, silicon, magnesium, tungsten, molybdenum, manganese, niobium, vanadium, and copper. Gas turbine parts, e.g. rotor or stator blades, and tubes of high temperature boilers, may be coated in order to withstand high temperature and to resist corrosion by vanadium compounds. A powdered eutectic alloy of beryllium with nickel, cobalt, or iron may be applied in suspension in xylene to the article, which is then heated to 1125 DEG C. in vacuo. Another method is to apply a coating of nickel, cobalt, or iron by electroplating, flame spraying, sputtering, vacuum evaporation, or hot dipping, and then to paint on a suspension of beryllium powder in xylene, followed by drying and heating to 1200 DEG C. out of contact with air. Alternatively the surface of the article may be depleted in chromium by heating in air to form a chromic oxide layer, which is removed, or by heating in molten caustic soda or potash; the surface is then cleaned and enriched in beryllium (a) by painting or spraying with a suspension of beryllium or beryllium alloy powder and then heating in vacuo or an inert atmosphere; (b) by heating in an atmosphere containing a volatile beryllium halide and argon or helium; (c) by heating in an air-free vessel with beryllium or an alloy thereof, ammonium chloride, and beryllia or magnesia; (d) by dipping in molten beryllium alloy; or (e) by electrolysis from a molten bath containing beryllium fluoride or oxyfluoride and sodium or barium fluoride or oxyfluoride. The Provisional Specification refers also to articles made of alloys containing titanium, aluminium, zirconium, or silicon, in place of or in addition to the chromium, and also to depleting the surface in chromium by heating with lime, magnesia, alumina, nickel oxide, cobalt oxides, or iron oxides.
GB19263/56A 1956-06-21 1956-06-21 Articles made of heat resistant alloys Expired GB895736A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB19263/56A GB895736A (en) 1956-06-21 1956-06-21 Articles made of heat resistant alloys
US666195A US3059325A (en) 1956-06-21 1957-06-17 Heat resisting alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19263/56A GB895736A (en) 1956-06-21 1956-06-21 Articles made of heat resistant alloys

Publications (1)

Publication Number Publication Date
GB895736A true GB895736A (en) 1962-05-09

Family

ID=10126469

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19263/56A Expired GB895736A (en) 1956-06-21 1956-06-21 Articles made of heat resistant alloys

Country Status (2)

Country Link
US (1) US3059325A (en)
GB (1) GB895736A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU46316A1 (en) * 1964-06-13 1972-01-01
US3449143A (en) * 1966-01-11 1969-06-10 Atomic Energy Commission Method of increasing the corrosion resistance of cobalt-based alloys to mercury
NL7216832A (en) * 1972-12-12 1974-06-14

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1801808A (en) * 1926-08-20 1931-04-21 Metal & Thermit Corp Process for covering metals or alloys with layers of metallic beryllium
US2549596A (en) * 1946-10-08 1951-04-17 Joseph G Hamilton Beryllium target and method of manufacture
US2750301A (en) * 1952-02-04 1956-06-12 Ver Deutsche Metallwerke Ag Method of treating metallic materials
US2698813A (en) * 1952-07-26 1955-01-04 Allegheny Ludlum Steel Process of silver brazing chromium stainless steel

Also Published As

Publication number Publication date
US3059325A (en) 1962-10-23

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