Enhancing Tribological Performance of Micro-Arc Oxidation Coatings on 6061 Aluminum Alloy with h-BN Incorporation

Zhao, Xia; Song, Jingfu; Lin, Jingyi; Wang, Guoqing; Zhao, Gai

doi:10.3390/coatings14060771

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Enhancing Tribological Performance of Micro-Arc Oxidation Coatings on 6061 Aluminum Alloy with h-BN Incorporation

by

Xia Zhao

¹,

Jingfu Song

²,

Jingyi Lin

¹,

Guoqing Wang

¹

and

Gai Zhao

^1,*

¹

State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

²

School of Naval Architecture & Ocean Engineering, Jiangsu Maritime Institute, Nanjing 211170, China

^*

Author to whom correspondence should be addressed.

Coatings 2024, 14(6), 771; https://doi.org/10.3390/coatings14060771

Submission received: 16 May 2024 / Revised: 15 June 2024 / Accepted: 17 June 2024 / Published: 19 June 2024

(This article belongs to the Special Issue Tribological Behavior and Mechanical Performance of Coatings and Materials)

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Abstract

Micro-arc oxidation (MAO) coatings of aluminum alloy have great potential applications due to their high hardness and wear resistance. However, the micro-pores and defects formed in the discharge channels during the MAO process limit its application in the corrosion field. This study delves into the impact of h-BN nanoparticles into MAO coatings on their structure, corrosion resistance, phase composition, and tribological properties. The results show that the incorporation of h-BN particles reduces the porosity and surface roughness of the coating while enhancing its hardness and wear resistance. The best corrosion resistance is obtained at a concentration of 2 g/L h-BN. An analysis of worn surface morphology, corrosion resistance, and friction coefficient change was conducted to evaluate the performance of this coating. This method provides a new approach to enhance the surface hardness and wear resistance of aluminum alloys, which is significant for expanding the application of aluminum alloys in corrosion environments.

Keywords: h-BN; micro-arc oxidation; 6061 aluminum alloy; corrosion resistance; wear resistance

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MDPI and ACS Style

Zhao, X.; Song, J.; Lin, J.; Wang, G.; Zhao, G. Enhancing Tribological Performance of Micro-Arc Oxidation Coatings on 6061 Aluminum Alloy with h-BN Incorporation. Coatings 2024, 14, 771. https://doi.org/10.3390/coatings14060771

AMA Style

Zhao X, Song J, Lin J, Wang G, Zhao G. Enhancing Tribological Performance of Micro-Arc Oxidation Coatings on 6061 Aluminum Alloy with h-BN Incorporation. Coatings. 2024; 14(6):771. https://doi.org/10.3390/coatings14060771

Chicago/Turabian Style

Zhao, Xia, Jingfu Song, Jingyi Lin, Guoqing Wang, and Gai Zhao. 2024. "Enhancing Tribological Performance of Micro-Arc Oxidation Coatings on 6061 Aluminum Alloy with h-BN Incorporation" Coatings 14, no. 6: 771. https://doi.org/10.3390/coatings14060771

APA Style

Zhao, X., Song, J., Lin, J., Wang, G., & Zhao, G. (2024). Enhancing Tribological Performance of Micro-Arc Oxidation Coatings on 6061 Aluminum Alloy with h-BN Incorporation. Coatings, 14(6), 771. https://doi.org/10.3390/coatings14060771

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Enhancing Tribological Performance of Micro-Arc Oxidation Coatings on 6061 Aluminum Alloy with h-BN Incorporation

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