GB981794A - Diffusion coating of metals - Google Patents
Diffusion coating of metalsInfo
- Publication number
- GB981794A GB981794A GB1781061A GB1781061A GB981794A GB 981794 A GB981794 A GB 981794A GB 1781061 A GB1781061 A GB 1781061A GB 1781061 A GB1781061 A GB 1781061A GB 981794 A GB981794 A GB 981794A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pack
- fluoride
- balance
- diffusion
- alloy
- 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
- C23C10/28—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
- C23C10/56—Diffusion of at least chromium and at least aluminium
-
- 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)
- Other Surface Treatments For Metallic Materials (AREA)
- Powder Metallurgy (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
A heat resistant "super alloy" consisting by weight of a major part of Ni and/or Co is coated with a diffusion layer by heating to 1650-2100 DEG F. in a diffusion pack including Cr, Al and Si and a vaporizable halogen material as a carrier. The diffusion pack contains 15-50% Cr, 1-20% Al, 0.5-15% Si, a filler such as Al2O3 and a halogen source such as the iodide, fluoride or hydrogen fluoride of ammonia or chromous fluoride. The Cr, Al and Si content of the pack should be 5-60% by weight of pack and the coating which is 0.001-0.002 inch thick consists of 90% Al, 5% Cr, 5% Si. With a part of the halogen source as a fluoride the pack can be reused for several coating operations, the fluoride acting as a regenerator. The alloy to be coated is embedded in the dry pack, sealed in an iron retort and heated for 4-20 hours at 1650-2100 DEG F. An alloy suitable for the vanes of a gas turbine engine contains 55% Co, 24.5% Cr, 10.5% Ni, 7.5% W and 0.5% C. Other alloys treated are: 0.12% C, 19% Cr, 1% Fe, 4% Mo, 3% Al, 3% Ti and balance Ni; 0.5% C, 24.5% Cr, 10.5% Ni, 7.4% W, 55% Co and balance Fe; 0.1% C, 20% Cr, 10% Ni, 15% W, 50% Co and balance Fe. Specification 911,414 is referred to.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US29150A US3073015A (en) | 1960-05-16 | 1960-05-16 | Diffusion coating of metals |
US29151A US3096205A (en) | 1960-05-16 | 1960-05-16 | Diffusion coating of metals |
Publications (1)
Publication Number | Publication Date |
---|---|
GB981794A true GB981794A (en) | 1965-01-27 |
Family
ID=26704607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1781061A Expired GB981794A (en) | 1960-05-16 | 1961-05-16 | Diffusion coating of metals |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH433901A (en) |
DE (1) | DE1446117C3 (en) |
GB (1) | GB981794A (en) |
SE (1) | SE303655B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4244306C1 (en) * | 1992-12-28 | 1994-03-17 | Astol Oberflaechenveredelung G | Diffusion layering of metal components subjected to aggressive media - uses a powder mixture in a hermetically sealed container which can be recovered and recycled |
US5939144A (en) * | 1996-10-25 | 1999-08-17 | Jamar Venture Corporation | Method and composition for diffusion treatment of ceramic materials |
WO2006071507A1 (en) * | 2004-12-29 | 2006-07-06 | Honeywell International Inc. | Low cost inovative diffused mcraly coatings |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001000989A1 (en) * | 1999-06-24 | 2001-01-04 | Antoine Jocelyn Carcasse | Device and method for accumulating mechanical energy |
-
1961
- 1961-05-13 DE DE19611446117 patent/DE1446117C3/en not_active Expired
- 1961-05-16 GB GB1781061A patent/GB981794A/en not_active Expired
- 1961-05-16 SE SE512361A patent/SE303655B/xx unknown
- 1961-05-16 CH CH567161A patent/CH433901A/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4244306C1 (en) * | 1992-12-28 | 1994-03-17 | Astol Oberflaechenveredelung G | Diffusion layering of metal components subjected to aggressive media - uses a powder mixture in a hermetically sealed container which can be recovered and recycled |
US5939144A (en) * | 1996-10-25 | 1999-08-17 | Jamar Venture Corporation | Method and composition for diffusion treatment of ceramic materials |
WO2006071507A1 (en) * | 2004-12-29 | 2006-07-06 | Honeywell International Inc. | Low cost inovative diffused mcraly coatings |
Also Published As
Publication number | Publication date |
---|---|
DE1446117B2 (en) | 1970-12-03 |
DE1446117A1 (en) | 1969-03-20 |
DE1446117C3 (en) | 1976-01-02 |
SE303655B (en) | 1968-09-02 |
CH433901A (en) | 1967-04-15 |
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