GB1441500A - Corrosion resistant coating system for ferrous metal articles having brazed joints - Google Patents
Corrosion resistant coating system for ferrous metal articles having brazed jointsInfo
- Publication number
- GB1441500A GB1441500A GB4701874A GB4701874A GB1441500A GB 1441500 A GB1441500 A GB 1441500A GB 4701874 A GB4701874 A GB 4701874A GB 4701874 A GB4701874 A GB 4701874A GB 1441500 A GB1441500 A GB 1441500A
- Authority
- GB
- United Kingdom
- Prior art keywords
- article
- braze
- followed
- coating
- plating
- 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
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 title abstract 5
- 239000011248 coating agent Substances 0.000 title abstract 4
- 238000000576 coating method Methods 0.000 title abstract 4
- 229910052751 metal Inorganic materials 0.000 title abstract 2
- 239000002184 metal Substances 0.000 title abstract 2
- 230000007797 corrosion Effects 0.000 title 1
- 238000005260 corrosion Methods 0.000 title 1
- 239000011651 chromium Substances 0.000 abstract 3
- 229910052759 nickel Inorganic materials 0.000 abstract 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 2
- 239000000956 alloy Substances 0.000 abstract 2
- 229910045601 alloy Inorganic materials 0.000 abstract 2
- 229910052804 chromium Inorganic materials 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 229910052748 manganese Inorganic materials 0.000 abstract 2
- 238000007747 plating Methods 0.000 abstract 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 abstract 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- 229910021591 Copper(I) chloride Inorganic materials 0.000 abstract 1
- 229910016027 MoTi Inorganic materials 0.000 abstract 1
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 abstract 1
- RJTANRZEWTUVMA-UHFFFAOYSA-N boron;n-methylmethanamine Chemical compound [B].CNC RJTANRZEWTUVMA-UHFFFAOYSA-N 0.000 abstract 1
- 229910052793 cadmium Inorganic materials 0.000 abstract 1
- RCTYPNKXASFOBE-UHFFFAOYSA-M chloromercury Chemical compound [Hg]Cl RCTYPNKXASFOBE-UHFFFAOYSA-M 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 abstract 1
- 238000009792 diffusion process Methods 0.000 abstract 1
- 238000007772 electroless plating Methods 0.000 abstract 1
- 150000004820 halides Chemical class 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 229910052763 palladium Inorganic materials 0.000 abstract 1
- 239000010452 phosphate Substances 0.000 abstract 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-M phosphinate Chemical compound [O-][PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-M 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- 229910052718 tin Inorganic materials 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 229910052720 vanadium Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
- C23C22/74—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process for obtaining burned-in conversion coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
-
- 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
- C23C10/02—Pretreatment of the material to be coated
-
- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
- C23C18/1689—After-treatment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemically Coating (AREA)
Abstract
1441500 Electroless plating; halide pack diffusion; modifying metallic surfaces CHROMALLOY AMERICAN CORP 30 Oct 1974 47018/74 Headings C7F and C7U A ferrous article having a joint brazed using an alloy of M.pt. 1125-1925‹F is coated selectively on the braze with Ni, Co, Fe, Ti, Cr, Mn, Mo or V, and the whole article is then aluminized. The ferrous article may contain 5-25 wt per cent Cr, 0-5% W, 0-25% Ni, 0-4 Cu, 0-3 Al and 0-2 Ti; the braze alloy may be based on Cu, Ag, or Au, and may also contain Zn, Ni, Pd, Cd, Sn or Mn. Selective Ni coating is achieved either by application of wax resist to all but the braze, and then Ni plating, or alternatively the ferrous article is passivated by treatment with a CuCl 2 /HgCl 2 / BiCl 3 /HCl/ethanol/water mixture and the braze selectively activated with HNO 3 and/or CrO 3 , followed by electroless Ni plating from a bath containing dimethylamine borane or hypophosphite. Chromium may be applied electrolytically to the brazed joint from a bath of 250-400 g/l Cr03 and 2À5-4 g/l SO 4 =, using current density 10-45 A/dm<SP>2</SP>; the remainder of the article is coated by a wax resist. This technique is also applicable to Co and Fe; MoTi or V are applied from a powder slurry. The Al may be applied by pack aluminization from Al 2 O 3 /Al/AlCl 3 at up to 1000‹F. This may be followed by application of Li, Na, K or ethyl silicate at up to 100‹C, followed by curing at 150-430‹C. A chromate-phosphate coating may then be applied, e.g. from a solution of 5-30% H 3 PO 4 , 3-8% CrO 3 and at least 0À5% of a chromate- and phosphate-forming metal, e.g. Al, Mg, plus surfactant; the coating is then cured. The ferrous article may be a turbine vane/ shroud assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4701874A GB1441500A (en) | 1974-10-30 | 1974-10-30 | Corrosion resistant coating system for ferrous metal articles having brazed joints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4701874A GB1441500A (en) | 1974-10-30 | 1974-10-30 | Corrosion resistant coating system for ferrous metal articles having brazed joints |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1441500A true GB1441500A (en) | 1976-06-30 |
Family
ID=10443417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4701874A Expired GB1441500A (en) | 1974-10-30 | 1974-10-30 | Corrosion resistant coating system for ferrous metal articles having brazed joints |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1441500A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1900842A1 (en) * | 2006-09-11 | 2008-03-19 | Difcon GmbH | Pack diffusion on an interlayer |
| CN110965053A (en) * | 2019-11-22 | 2020-04-07 | 中国航发西安动力控制科技有限公司 | Acidic chemical nickel plating method and solution |
-
1974
- 1974-10-30 GB GB4701874A patent/GB1441500A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1900842A1 (en) * | 2006-09-11 | 2008-03-19 | Difcon GmbH | Pack diffusion on an interlayer |
| CN110965053A (en) * | 2019-11-22 | 2020-04-07 | 中国航发西安动力控制科技有限公司 | Acidic chemical nickel plating method and solution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |