CH619985A5 - Process for removing an aluminide coating - Google Patents
Process for removing an aluminide coating Download PDFInfo
- Publication number
- CH619985A5 CH619985A5 CH144076A CH144076A CH619985A5 CH 619985 A5 CH619985 A5 CH 619985A5 CH 144076 A CH144076 A CH 144076A CH 144076 A CH144076 A CH 144076A CH 619985 A5 CH619985 A5 CH 619985A5
- Authority
- CH
- Switzerland
- Prior art keywords
- coating
- coatings
- aluminide
- nickel
- percent
- Prior art date
Links
- 238000000576 coating method Methods 0.000 title claims description 73
- 239000011248 coating agent Substances 0.000 title claims description 41
- 229910000951 Aluminide Inorganic materials 0.000 title claims description 28
- 238000000034 method Methods 0.000 title claims description 17
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 20
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 20
- 229910017604 nitric acid Inorganic materials 0.000 claims description 20
- 239000011651 chromium Substances 0.000 claims description 11
- 229910052759 nickel Inorganic materials 0.000 claims description 9
- 239000000243 solution Substances 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 7
- QXZUUHYBWMWJHK-UHFFFAOYSA-N [Co].[Ni] Chemical compound [Co].[Ni] QXZUUHYBWMWJHK-UHFFFAOYSA-N 0.000 claims description 6
- 239000010941 cobalt Substances 0.000 claims description 6
- 229910017052 cobalt Inorganic materials 0.000 claims description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 6
- 229910000601 superalloy Inorganic materials 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 229920002472 Starch Polymers 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000008107 starch Substances 0.000 claims description 3
- 235000019698 starch Nutrition 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 description 16
- 239000000956 alloy Substances 0.000 description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 15
- 229910052782 aluminium Inorganic materials 0.000 description 14
- 238000009792 diffusion process Methods 0.000 description 8
- 238000007654 immersion Methods 0.000 description 7
- 238000007740 vapor deposition Methods 0.000 description 6
- 238000002161 passivation Methods 0.000 description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012858 packaging process Methods 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 229910002515 CoAl Inorganic materials 0.000 description 1
- 229910000943 NiAl Inorganic materials 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- -1 NÌ2AI3 Inorganic materials 0.000 description 1
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000007420 reactivation Effects 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/44—Compositions for etching metallic material from a metallic material substrate of different composition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
- F01D5/288—Protective coatings for blades
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- ing And Chemical Polishing (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US54832275A | 1975-02-10 | 1975-02-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH619985A5 true CH619985A5 (en) | 1980-10-31 |
Family
ID=24188340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH144076A CH619985A5 (en) | 1975-02-10 | 1976-02-05 | Process for removing an aluminide coating |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPS51105931A (https=) |
| AU (1) | AU499835B2 (https=) |
| BE (1) | BE838323A (https=) |
| CH (1) | CH619985A5 (https=) |
| DE (1) | DE2604731A1 (https=) |
| DK (1) | DK38276A (https=) |
| FR (1) | FR2300142A1 (https=) |
| GB (1) | GB1525322A (https=) |
| IL (1) | IL48986A (https=) |
| IT (1) | IT1055176B (https=) |
| NL (1) | NL7601108A (https=) |
| NO (1) | NO142088C (https=) |
| SE (1) | SE7601061L (https=) |
| ZA (1) | ZA76582B (https=) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2066386B (en) * | 1979-12-26 | 1983-10-12 | Gen Electric | Filler removal method |
| EP0713957A1 (en) * | 1994-11-25 | 1996-05-29 | FINMECCANICA S.p.A. AZIENDA ANSALDO | Method of repairing the coating of turbine blades |
| US5695659A (en) * | 1995-11-27 | 1997-12-09 | United Technologies Corporation | Process for removing a protective coating from a surface of an airfoil |
| GB9814075D0 (en) * | 1998-06-29 | 1998-08-26 | Ge Aircraft Engine Services Li | Method of stripping a coating from an aircraft engine part |
| US7008553B2 (en) * | 2003-01-09 | 2006-03-07 | General Electric Company | Method for removing aluminide coating from metal substrate and turbine engine part so treated |
| CN109338367A (zh) * | 2018-11-26 | 2019-02-15 | 中国航发沈阳黎明航空发动机有限责任公司 | 一种去除等离子喷涂NiAl涂层的工艺方法 |
-
1976
- 1976-01-30 DK DK38276*#A patent/DK38276A/da not_active Application Discontinuation
- 1976-02-02 ZA ZA582A patent/ZA76582B/xx unknown
- 1976-02-02 SE SE7601061*[A patent/SE7601061L/xx unknown
- 1976-02-03 AU AU10761/76A patent/AU499835B2/en not_active Expired
- 1976-02-03 GB GB4191/76A patent/GB1525322A/en not_active Expired
- 1976-02-04 NL NL7601108A patent/NL7601108A/xx not_active Application Discontinuation
- 1976-02-05 CH CH144076A patent/CH619985A5/de not_active IP Right Cessation
- 1976-02-06 BE BE164132A patent/BE838323A/xx not_active IP Right Cessation
- 1976-02-06 DE DE19762604731 patent/DE2604731A1/de not_active Withdrawn
- 1976-02-06 IL IL48986A patent/IL48986A/en unknown
- 1976-02-09 FR FR7603405A patent/FR2300142A1/fr active Granted
- 1976-02-09 JP JP51013113A patent/JPS51105931A/ja active Pending
- 1976-02-09 NO NO760403A patent/NO142088C/no unknown
- 1976-02-10 IT IT20035/76A patent/IT1055176B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| NO142088B (no) | 1980-03-17 |
| NO760403L (https=) | 1976-08-11 |
| BE838323A (fr) | 1976-05-28 |
| DK38276A (da) | 1976-08-11 |
| FR2300142B1 (https=) | 1980-11-14 |
| JPS51105931A (https=) | 1976-09-20 |
| SE7601061L (sv) | 1976-08-11 |
| GB1525322A (en) | 1978-09-20 |
| NL7601108A (nl) | 1976-08-12 |
| IL48986A0 (en) | 1976-04-30 |
| NO142088C (no) | 1980-06-25 |
| AU1076176A (en) | 1977-08-11 |
| ZA76582B (en) | 1977-01-26 |
| IL48986A (en) | 1978-07-31 |
| AU499835B2 (en) | 1979-05-03 |
| IT1055176B (it) | 1981-12-21 |
| FR2300142A1 (fr) | 1976-09-03 |
| DE2604731A1 (de) | 1976-08-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |