CA2556869A1 - Thin oxide coating and process - Google Patents
Thin oxide coating and process Download PDFInfo
- Publication number
- CA2556869A1 CA2556869A1 CA 2556869 CA2556869A CA2556869A1 CA 2556869 A1 CA2556869 A1 CA 2556869A1 CA 2556869 CA2556869 CA 2556869 CA 2556869 A CA2556869 A CA 2556869A CA 2556869 A1 CA2556869 A1 CA 2556869A1
- Authority
- CA
- Canada
- Prior art keywords
- alloys
- oxide coating
- wear
- process according
- synthesized
- 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.)
- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract 7
- 238000000034 method Methods 0.000 title claims abstract 7
- 239000011248 coating agent Substances 0.000 title claims abstract 6
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract 2
- 229910021364 Al-Si alloy Inorganic materials 0.000 claims abstract 2
- 229910000861 Mg alloy Inorganic materials 0.000 claims abstract 2
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract 2
- 229910052782 aluminium Inorganic materials 0.000 claims abstract 2
- 238000005530 etching Methods 0.000 claims abstract 2
- 230000003647 oxidation Effects 0.000 claims abstract 2
- 238000007254 oxidation reaction Methods 0.000 claims abstract 2
- 230000004224 protection Effects 0.000 claims abstract 2
- 229910045601 alloy Inorganic materials 0.000 claims 4
- 239000000956 alloy Substances 0.000 claims 4
- 238000005260 corrosion Methods 0.000 claims 1
- 230000007797 corrosion Effects 0.000 claims 1
- 239000000314 lubricant Substances 0.000 claims 1
- 239000011159 matrix material Substances 0.000 claims 1
- 238000001556 precipitation Methods 0.000 claims 1
- 238000006748 scratching Methods 0.000 claims 1
- 230000002393 scratching effect Effects 0.000 claims 1
- 239000000758 substrate Substances 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 238000007743 anodising Methods 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 239000003562 lightweight material Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/10—Bearings
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/026—Anodisation with spark discharge
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/16—Pretreatment, e.g. desmutting
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/26—Anodisation of refractory metals or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/30—Anodisation of magnesium or alloys based thereon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
This invention is involved in a thin oxide coating process on lightweight materials (Al-, Mg- and Ti-alloys). The oxide coating with dimples on its surface is synthesized by a high voltage anodizing process where an etching and plasma oxidation in an alkaline electrolyte may occur. The as-synthesized coating has the microstructure, mechanical and tribological property, thermal conductivity, and surface finish required for the applications of sliding contacts and wear in ambient and elevated temperature environment. The present invention can be particularly applied onto Al-Si alloys for wear and corrosion-wear protection of a sleeveless aluminum engine bore/piston system and parts used in alternative fuel vehicles.
Claims (5)
1. A process of forming an oxide coating on a surface of lightweight Al, Al-Si, Mg, and Ti alloys, which comprises an electrochemical etching and plasma oxidation.
2. The process according to claim 1, wherein the oxide coating on said alloys has a coating thickness of 0.5-5 microns and a number of dimples on its surface that can be favourably utilized as reservoirs of oil lubricants for reduction of friction and shear forces during a sliding contact wear.
3. The process according to claims 1 and 2, wherein the coated surface of said alloys has tribological properties to protect the soft matrix from scratching and avoid the breaking and delaminating of hard precipitations from the substrate surface.
4. The process according to claims 1 and 2, wherein the coated surfaces of said alloys are Al and Mg engine block bores and pistons which have a surface finish Ra <
0.8 microns.
0.8 microns.
5. The process according to claims 1 and 2, wherein the coated surfaces of said alloys are interior and exterior surfaces which need protections from wear and corrosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2556869A CA2556869C (en) | 2006-08-18 | 2006-08-18 | Thin oxide coating and process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2556869A CA2556869C (en) | 2006-08-18 | 2006-08-18 | Thin oxide coating and process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2556869A1 true CA2556869A1 (en) | 2008-02-18 |
| CA2556869C CA2556869C (en) | 2010-07-06 |
Family
ID=39103090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2556869A Expired - Fee Related CA2556869C (en) | 2006-08-18 | 2006-08-18 | Thin oxide coating and process |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2556869C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8361630B2 (en) | 2001-10-02 | 2013-01-29 | Henkel Ag & Co. Kgaa | Article of manufacture and process for anodically coating an aluminum substrate with ceramic oxides prior to polytetrafluoroethylene or silicone coating |
| US8663807B2 (en) | 2001-10-02 | 2014-03-04 | Henkel Ag & Co. Kgaa | Article of manufacture and process for anodically coating aluminum and/or titanium with ceramic oxides |
| CN103757679A (en) * | 2014-01-22 | 2014-04-30 | 东风活塞轴瓦有限公司 | Method for performing micro-arc oxidation on top of aluminum-alloy piston |
| US9023481B2 (en) | 2001-10-02 | 2015-05-05 | Henkel Ag & Co. Kgaa | Anodized coating over aluminum and aluminum alloy coated substrates and coated articles |
| WO2015070833A1 (en) * | 2013-11-12 | 2015-05-21 | Ford Werke Gmbh | Method for producing a coated surface of a tribological system |
| DE102015117825A1 (en) | 2014-12-23 | 2016-06-23 | Zapadoceska Univerzita V Plzni | Hot deformation process for hybrid parts |
| US9701177B2 (en) | 2009-04-02 | 2017-07-11 | Henkel Ag & Co. Kgaa | Ceramic coated automotive heat exchanger components |
| DE102017206722A1 (en) | 2016-04-26 | 2017-10-26 | Ford Global Technologies, Llc | Process for producing a coated surface of a tribological system |
| CN107541763A (en) * | 2017-10-11 | 2018-01-05 | 四川恒诚信电子科技有限公司 | A kind of oxidation treatment method of high thermal conductivity aluminum matrix plate |
-
2006
- 2006-08-18 CA CA2556869A patent/CA2556869C/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8663807B2 (en) | 2001-10-02 | 2014-03-04 | Henkel Ag & Co. Kgaa | Article of manufacture and process for anodically coating aluminum and/or titanium with ceramic oxides |
| US9023481B2 (en) | 2001-10-02 | 2015-05-05 | Henkel Ag & Co. Kgaa | Anodized coating over aluminum and aluminum alloy coated substrates and coated articles |
| US8361630B2 (en) | 2001-10-02 | 2013-01-29 | Henkel Ag & Co. Kgaa | Article of manufacture and process for anodically coating an aluminum substrate with ceramic oxides prior to polytetrafluoroethylene or silicone coating |
| US9701177B2 (en) | 2009-04-02 | 2017-07-11 | Henkel Ag & Co. Kgaa | Ceramic coated automotive heat exchanger components |
| US9994966B2 (en) | 2013-11-12 | 2018-06-12 | Ford Werke Gmbh | Method for producing a coated surface of a tribological system |
| WO2015070833A1 (en) * | 2013-11-12 | 2015-05-21 | Ford Werke Gmbh | Method for producing a coated surface of a tribological system |
| CN103757679A (en) * | 2014-01-22 | 2014-04-30 | 东风活塞轴瓦有限公司 | Method for performing micro-arc oxidation on top of aluminum-alloy piston |
| CN103757679B (en) * | 2014-01-22 | 2016-05-18 | 东风活塞轴瓦有限公司 | A kind of all-aluminium piston top differential arc oxidation method |
| DE102015117825A1 (en) | 2014-12-23 | 2016-06-23 | Zapadoceska Univerzita V Plzni | Hot deformation process for hybrid parts |
| US10060000B2 (en) | 2014-12-23 | 2018-08-28 | Západoceská Univerzita V Plzni | Method of hot forming hybrid parts |
| DE102017206722A1 (en) | 2016-04-26 | 2017-10-26 | Ford Global Technologies, Llc | Process for producing a coated surface of a tribological system |
| US11118282B2 (en) | 2016-04-26 | 2021-09-14 | Ford Global Technologies, Llc | Method and device for producing a wear-resistant surface on a workpiece |
| DE102017206722B4 (en) | 2016-04-26 | 2024-07-11 | Ford Global Technologies, Llc | Method and device for producing a coated surface of a tribological system |
| CN107541763A (en) * | 2017-10-11 | 2018-01-05 | 四川恒诚信电子科技有限公司 | A kind of oxidation treatment method of high thermal conductivity aluminum matrix plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2556869C (en) | 2010-07-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20220301 |
|
| MKLA | Lapsed |
Effective date: 20200831 |