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Volume 14
Issue 4
10.3390/coatings14040476
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Article

Improving the Wear Resistance Properties of 7A04 Aluminum Alloy with Three Surface Modification Coatings

by
Jinmeng Hu
1,
Cheng Zhang
1,2,
Xiaodong Wang
1,
Xiaobo Meng
1,
Caihong Dou
1,
Hua Yu
1,2,
Changji Wang
1,2,
Jun Xue
3,
Ziping Qiao
3,* and
Tao Jiang
1,4,*
1
National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471000, China
2
Longmen Laboratory, Luoyang 471003, China
3
Science and Technology on Transit Impact Laboratory, No. 208 Research Institute of China Ordnance Industries, Beijing 102202, China
4
Luoyang Wanji Aluminum Processing Co., Ltd., Changjiang Avenue, Industrial Agglomeration Zone, Luoyang 471800, China
*
Authors to whom correspondence should be addressed.
Coatings 2024, 14(4), 476; https://doi.org/10.3390/coatings14040476
Submission received: 7 March 2024 / Revised: 7 April 2024 / Accepted: 10 April 2024 / Published: 13 April 2024
(This article belongs to the Special Issue Enhanced Mechanical Properties of Metals by Surface Treatments)
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Abstract

Multiple advantages, such as good formability, high specific strength, excellent thermal conductivity, and high corrosion resistance, enable aluminum alloy wide application in various fields; however, low surface hardness and poor wear resistance limit its further development. In this study, three surface modification coatings were successfully prepared on the surface of 7A04 aluminum alloy by microarc oxidation (MAO) and a combination of hard anodizing treatment (HA) and physical vapor deposition (PVD), named MAO, HA+W+DLC, and HA+Ti+ta-C, respectively. The microstructure, hardness, and tribological properties of the three coatings and the 7A04 aluminum alloy substrate were studied. The results show that the surface quality and hardness of the coated samples were higher than those of the 7A04 aluminum alloy and that the HA+Ti+ta-C coating possessed the highest hardness of 34.23 GPa. Moreover, the wear resistance of the two multilayer coatings was significantly improved during the ring-block wear tests under oil lubrication, exhibiting a wear rate of 1.51 × 10−7 mm3/N·m for HA+W+DLC and 1.36 × 10−7 mm3/N·m for HA+Ti+ta-C.
Keywords: aluminum alloy; MAO coating; HA+W+DLC multilayer coating; HA+Ti+ta-C multilayer coating; wear resistance aluminum alloy; MAO coating; HA+W+DLC multilayer coating; HA+Ti+ta-C multilayer coating; wear resistance

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MDPI and ACS Style

Hu, J.; Zhang, C.; Wang, X.; Meng, X.; Dou, C.; Yu, H.; Wang, C.; Xue, J.; Qiao, Z.; Jiang, T. Improving the Wear Resistance Properties of 7A04 Aluminum Alloy with Three Surface Modification Coatings. Coatings 2024, 14, 476. https://doi.org/10.3390/coatings14040476

AMA Style

Hu J, Zhang C, Wang X, Meng X, Dou C, Yu H, Wang C, Xue J, Qiao Z, Jiang T. Improving the Wear Resistance Properties of 7A04 Aluminum Alloy with Three Surface Modification Coatings. Coatings. 2024; 14(4):476. https://doi.org/10.3390/coatings14040476

Chicago/Turabian Style

Hu, Jinmeng, Cheng Zhang, Xiaodong Wang, Xiaobo Meng, Caihong Dou, Hua Yu, Changji Wang, Jun Xue, Ziping Qiao, and Tao Jiang. 2024. "Improving the Wear Resistance Properties of 7A04 Aluminum Alloy with Three Surface Modification Coatings" Coatings 14, no. 4: 476. https://doi.org/10.3390/coatings14040476

APA Style

Hu, J., Zhang, C., Wang, X., Meng, X., Dou, C., Yu, H., Wang, C., Xue, J., Qiao, Z., & Jiang, T. (2024). Improving the Wear Resistance Properties of 7A04 Aluminum Alloy with Three Surface Modification Coatings. Coatings, 14(4), 476. https://doi.org/10.3390/coatings14040476

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