Study on the microstructure and comprehensive properties of black MAO/ TiO2 coatings prepared on 6063 aluminum alloy

被引：3
作者：
Yu, D. L. [1 ,2 ]
Jiang, B. [1 ,2 ]
Qi, X. [2 ,3 ]
Wang, C. [1 ,2 ]
Song, R. G. [1 ,2 ]
机构：
[1] Changzhou Univ, Sch Mat Sci & Engn, Changzhou 213164, Jiangsu, Peoples R China
[2] Changzhou Univ, Jiangsu Key Lab Mat Surface Sci & Technol, Changzhou 213164, Jiangsu, Peoples R China
[3] Changzhou Inst Technol, Sch Aeronaut & Mech Engn, Changzhou 213032, Jiangsu, Peoples R China
来源：
MATERIALS TODAY COMMUNICATIONS | 2025年 / 42卷
基金：
中国国家自然科学基金;
关键词：
6063 aluminum alloy; Black MAO coatings; TiO; 2; nanoparticles; Mechanical behavior; Corrosion resistance; PLASMA ELECTROLYTIC OXIDATION; CERAMIC COATINGS; MECHANICAL-PROPERTIES; OXIDE-FILMS; AL-ALLOY; AA7075; LAYERS; LIGHT; SIO2;
D O I：
10.1016/j.mtcomm.2024.111317
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Black ceramic coatings with TiO2 nanoparticles were prepared on 6063 aluminum alloy using the micro-arc oxidation (MAO) technique. The effect of TiO2 concentrations on the microstructure, mechanical behavior, and corrosion resistance of black ceramic coatings was studied. The experimental results indicated that the TiO2 nanoparticles could increase the coating thickness, reduce the poriness, increase the surface roughness, and improve the mechanical properties (hardness, adhesion, friction, and wear resistance). The black MAO coating prepared in the TiO2 concentrations with MAO-1.5Ti had the best corrosion resistance in 3.5 wt% NaCl solution, as manifested by a corrosion current density of 3.598 x 10-9 that was 2 orders of magnitude less than that of the MAO-0Ti. The corrosion resistance results were further confirmed through an immersion corrosion test.
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页数：16
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