CA2556869A1 - Thin oxide coating and process - Google Patents

Thin oxide coating and process Download PDF

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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
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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
Application number
CA 2556869
Other languages
French (fr)
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CA2556869C (en
Inventor
Xueyuan X. Nie
Jingzeng J. Zhang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA2556869A priority Critical patent/CA2556869C/en
Publication of CA2556869A1 publication Critical patent/CA2556869A1/en
Application granted granted Critical
Publication of CA2556869C publication Critical patent/CA2556869C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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

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.
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.
CA2556869A 2006-08-18 2006-08-18 Thin oxide coating and process Expired - Fee Related CA2556869C (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (13)

* Cited by examiner, † Cited by third party
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
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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