GB895736A - Articles made of heat resistant alloys - Google Patents
Articles made of heat resistant alloysInfo
- 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
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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
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.
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)
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)
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 |
-
1956
- 1956-06-21 GB GB19263/56A patent/GB895736A/en not_active Expired
-
1957
- 1957-06-17 US US666195A patent/US3059325A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3059325A (en) | 1962-10-23 |
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