[1]张金龙,吴晓风,李继东*,等.doi: 10.3969/j.issn.1001-3849.2025.09.0186061铝合金表面复合共沉积制备Co-Mo-Ce/TiO2镀层及耐蚀性能研究[J].电镀与精饰,2025,(09):127-135.
　Zhang Jinlong,Wu Xiaofeng,Li Jidong*,et al.Preparation of Co-Mo-Ce/TiO2 coating by composite co-deposition of 6061 aluminum alloy surface and research on corrosion resistance[J].Plating & Finishing,2025,(09):127-135.
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doi: 10.3969/j.issn.1001-3849.2025.09.0186061铝合金表面复合共沉积制备Co-Mo-Ce/TiO2镀层及耐蚀性能研究()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2025年09
页码:
127-135
栏目:
出版日期:
2025-09-30

文章信息/Info

Title:
Preparation of Co-Mo-Ce/TiO2 coating by composite co-deposition of 6061 aluminum alloy surface and research on corrosion resistance
作者:
张金龙; 吴晓风; 李继东*; 王一雍; 邢洪旋
张金龙,吴晓风,李继东*,王一雍,邢洪旋(辽宁科技大学 冶金工程省级重点实验室,辽宁 鞍山 11405)
Author(s):
Zhang Jinlong;  Wu Xiaofeng;  Li Jidong*;  Wang Yiyong;  Xing Hongxuan
(Provincial Key Laboratory of Metallurgical Engineering, Liaoning University of Science and Technology, Anshan 114051, China)
关键词:
6061铝合金; 复合共沉积; Co-Mo-Ce/TiO2; 耐蚀镀层
Keywords:
6061 aluminum alloy;  composite co-deposition;  Co-Mo-Ce/TiO2;  corrosion-resistant coating
分类号:
GT171
文献标志码:
A
摘要:
铝及其合金在海洋工程结构中具有广泛应用，但是铝合金表面硬度低，腐蚀电位较负，耐磨性较差，在海洋环境中很容易发生腐蚀。因此，如何提高铝合金的耐腐蚀性能变得尤为重要。本文采用复合共沉积法在6061铝合金表面制备了Co-Mo-Ce/TiO2耐蚀镀层并研究了不同超声模式、不同超声功率以及不同纳米TiO2浓度条件对镀层耐蚀性能的影响。研究结果表明：在添加2 g/L纳米TiO2条件下使用3∶3的超声模式和200 W的超声功率制备得到的镀层耐蚀性能最优，镀层的腐蚀电流密度为0.822 μA·cm?2，腐蚀电位达到?0.616 V，腐蚀速率达到9.56×10?3 mm·a ?1，电荷转移的阻抗达到1 870 Ω。且镀有Co-Mo-Ce/TiO2耐蚀镀层的6061铝合金较普通6061铝合金的腐蚀速率降低了57倍，硬度提升了4.7倍，极大的提高了6061铝合金在海洋环境中的应用年限。
Abstract:
Aluminum and its alloys are widely used in marine engineering structures, but aluminum alloys have low surface hardness, negative corrosion potential, poor wear resistance, and are easy to corrode in marine environments. Therefore, how to improve the corrosion resistance of aluminum alloy has become particularly important. In this paper, Co-Mo-Ce/TiO2 corrosion-resistant coatings were prepared on the surface of 6061 aluminum alloy by composite co-deposition, and the effects of different ultrasonic modes, different ultrasonic powers and different nano-TiO 2 concentrations on the corrosion resistance of the coatings were studied. The results show that the corrosion resistance of the coating prepared by adding 2 g/L nano-TiO 2 using 3：3 ultrasonic mode and 200 W ultrasonic power is the best, the corrosion current density of the coating is 0.822 μA·cm?2, the corrosion potential reaches ?0.616 V, the corrosion rate reaches 9.56×10?3 mm·a ?1, and the impedance of charge transfer reaches 1870 Ω. Moreover, the corrosion rate of 6061 aluminum alloy coated with Co-Mo-Ce/TiO2 corrosion-resistant coating is reduced by 57 times and the hardness is increased by 4.7 times compared with ordinary 6061 aluminum alloy, which greatly improves the service life of 6061 aluminum alloy in the marine environment.

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更新日期/Last Update: 2025-09-11