Abstract
Ceramic oxide coatings were deposited on 7N01 Al alloy by micro-arc oxidation (MAO) in the electrolytic solution. Microstructure, phase composition and wear resistance of the oxide coatings were investigated by SEM, XRD as well as friction and wear test. The micro-hardness and thickness of the oxide coatings were measured. The results showed that the ceramic coating was mainly composed of α-Al2O3 and γ-Al2O3. During oxidation, the temperature in the micro-arc discharge channel was very high to make the local coating molten. From the surface to the interior of the coating, 30∼35μm, micro-hardness of coatings gradually increased, which was about 1300HV0.1. It has been found that the micro-arc oxidation coatings greatly improved the anti-wear properties of aluminum alloys.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
