NaF添加剂对铝合金微弧氧化能耗与涂层性能的影响

王鑫阳; WANG Xinyang; 鲁世彬; LU Shibin; 王伟强; WANG Weiqiang

doi:10.48014/pcms.20250505001

NaF添加剂对铝合金微弧氧化能耗与涂层性能的影响

Effect of NaF Additive on Energy Consumption and Coating Properties in Micro-arc Oxidation of Aluminum Alloy

中国材料科学进展 2025年第4卷第2期页码[42-53] 下载全文[14.3MB]

摘要

在致力于实现汽车轻量化目标的进程中, 铝合金以其出色的特性成为了不可或缺的关键材料, 但其表面性能不足, 往往需要通过改性技术提升。微弧氧化是一种极具成效的表面处理手段, 能够在铝合金表面原位生长高性能陶瓷涂层, 但其高能耗问题限制了工业化应用。本文通过调控电解液中的NaF浓度, 系统研究了其对微弧氧化放电特性、涂层结构、性能及微弧氧化能耗的影响。研究结果表明, NaF的添加显著降低了击穿电压, 单位能耗随NaF浓度增加而降低, 其中10g/L NaF体系 (MF10) 的单位能耗较未添加体系 (MF0) 减少约52. 2%。涂层形貌显示适量NaF可减小涂层孔隙, 提升致密性, 而过量NaF则会导致大孔洞和表面烧蚀。XRD分析表明, NaF促进了α-Al2O3、莫来石及AlF3相的生成。涂层性能测试显示, MF10样品的腐蚀电流密度低至2. 50×10-8A·cm-2, 且在摩擦测试中得到最小的磨痕深度。本研究为开发低能耗、高性能的铝合金MAO工艺提供了理论依据与技术参考。

Abstract

In the process of achieving the goal of automotive lightweighting, aluminum alloy has become an indispensable key material with its excellent characteristics, but their insufficient surface properties often require enhancement through technology modification. Micro-arc oxidation (MAO) , as an effective surface treatment technique, can in situ grow high-performance ceramic coatings on aluminum alloy surfaces. However, the high energy consumption limits its industrial application. In this paper, by regulating the NaF concentration in the electrolyte, the effects on the MAO discharge characteristics, coating structure and performance, and MAO energy consumption were systematically investigated. The results showed that the addition of NaF significantly reduced the breakdown voltage, and the unit energy consumption decreased with the increase of NaF concentration, in which the unit energy consumption of the 10g/L NaF system (MF10) was reduced by about 52. 2% compared with that of the unadded system (MF0) . The coating morphology showed that the moderate amount of NaF could reduce the coating pores and enhance the densification, while the excessive amount of NaF led to large pores and surface ablation. XRD analysis showed that NaF promoted the generation of α-Al2O3, mullite, and AlF3 phases. Coating performance tests showed that the corrosion current density of the MF10 samples was as low as 2. 50×10-8 A·cm-2 and the minimum abrasion depth was obtained in friction tests. This study provides a theoretical basis and technical reference for the development of a low-energy and high-performance MAO process for aluminum alloys.

DOI

10.48014/pcms.20250505001

文章类型

研究性论文

收稿日期

2025-05-05

接收日期

2025-05-09

出版日期

2025-06-28

关键词

微弧氧化, 铝合金, 能耗, 耐蚀性, 耐磨性

Keywords

Micro-arc oxidation, Aluminum alloy, energy consumption, corrosion resistance, wear resistance

作者

王鑫阳, 鲁世彬, 王伟强^*

Author

WANG Xinyang, LU Shibin, WANG Weiqiang^*

所在单位

大连理工大学材料科学与工程学院, 大连 116024

Company

School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China

浏览量

下载量

基金项目

本研究得到中央高校基本科研业务费专项基金(DUT24YG144)的资助

参考文献

[1] V. S. Saji. Advances in plasma electrolytic oxidation(PEO)on metal-matrix composites(MMCs)- A critical review[J]. Chemical Engineering Journal, 2024: 498155066.
https://doi.org/10.1016/j.cej.2024.155066.
[2] 田昊阅, 窦铮, 陈肖祎, 等. 轻合金低能耗微弧氧化膜层的制备及其耐蚀性研究[C].第十一届全国腐蚀与防护大会, 中国辽宁沈阳, 2021.
https://doi.org/10.26914/c.cnkihy.2021.016162.
[3] 刘晓鹤, 石绪忠, 张益豪, 等. 钛合金低能耗微弧氧化研究[J]. 材料开发与应用, 2014, 29(05): 72-78.
https://doi.org/10.19515/j.cnki.1003-1545.2014.05.014.
[4] 付国华, 徐晋勇, 黄琼琼, 等. 工艺参数对较大面积铝合金微弧氧化制备能耗的影响[J]. 腐蚀科学与防护技术, 2013, 25(02): 156-159.
https://doi.org/10.14158/j.cnki.1001-3814.2013.24.046.
[5] 田梦真, 王勇, 李涛, 等. 电参数对AZ31B镁合金微弧氧化膜能耗及耐蚀性的影响[J]. 中国腐蚀与防护学报, 2024, 44(04): 1064-1072.
https://doi.org/10.16577/j.issn.1001-1560.2024.0227.
[6] Y. Zhang, Y. Wu, D. Chen, et al. Micro-structures and growth mechanisms of plasma electrolytic oxidation coatings on aluminium at different current densities[J]. Surface and Coatings Technology, 2017, 321: 236-246.
https://doi.org/10.1016/j.surfcoat.2017.04.064.
[7] F. Jaspard-Mécuson, T. Czerwiec, G. Henrion, et al. Tailored aluminium oxide layers by bipolar current adjustment in the Plasma Electrolytic Oxidation(PEO)process[J]. Surface and Coatings Technology, 2007, 201(21): 8677-8682.
https://doi.org/10.1016/j.surfcoat.2006.09.005.
[8] T. T. Thanaa, A. Fattah-alhosseini, M. Alkaseem, et al. Improving the surface properties of Mg based-plasma electrolytic oxidation(PEO)coatings under the fluoride electrolytes: A review[J]. Inorganic Chemistry Communications, 2024, 170: 113163.
https://doi.org/10.1016/j.inoche.2024.113163.
[9] 衡志丹, 马颖, 欧凯奇, 等. OH-/F-比与SiO32-的关系对铝合金微弧氧化膜层的影响[J]. 表面技术, 2024, 53(18): 100-115.
https://doi.org/10.16490/j.cnki.issn.1001-3660.2024.18.008.
[10] W. Wang, Y. Yang, C. Liu, et al. Study of Coating Growth Direction of 6061 Aluminum Alloy in Soft Spark Discharge of Plasma Electrolytic Oxidation[J]. Materials, 2024, 17(12): 2947.
https://www.mdpi.com/1996-1944/17/12/2947.
[11] 陈泉志, 童庆, 黄德宇, 等. 电能量参数对微弧氧化技术及能耗影响的研究进展[J]. 材料导报, 2018, 32(S1): 278-283.
https://doi.org/10.13657/j.cnki.gxkxyxb.20181204.001.
[12] 刘雪辰, 张镜斌, 姚永辉, 等. SiCp增强铝基复合材料微弧氧化层的制备及性能研究[J]. 热加工工艺, 2025, 54(07): 150-156.
https://doi.org/10.14158/j.cnki.1001-3814.20242478.
[13] 李治辉, 赵彦杰, 陈晓燕, 等. 添加AlF3·3H2O 对精密铸造用陶瓷型壳组织与性能的影响[J]. 材料工程, 2024, 52(12): 188-195.
https://doi.org/11.1800.TB.20241206.1432.020.
[14] O. P. Terleeva, A. I. Slonova, A. B. Rogov, et al. Wear Resistant Coatings with a High Friction Coefficient Produced by Plasma Electrolytic Oxidation of Al Alloys in Electrolytes with Basalt Mineral Powder Additions[J]. Materials, 2019, 12(17): 2738.
https://www.mdpi.com/1996-1944/12/17/2738.
[15] 马晓亮, 汪桂根, 张孟予, 等. 莫来石晶须增强硅酸铝纤维复合材料的制备与性能研究[J]. 硅酸盐通报, 44(01): 321-331.
https://doi.org/10.16552/j.cnki.issn1001-1625.2024.0779.
[16] 吴瑜, 李月樵, 洪伟, 等. 镁合金微弧氧化膜致密化技术研究进展[J]. 电镀与精饰, 2024, 46(11): 76-85.
https://doi.org/10.16490/j.cnki.issn.1001-3660.2024.17.006.
[17] Q. Chen, X. Lu, M. Serdechnova, et al. Insights into insitu synthesis of PEO-LDH composite film on AM50 Mg alloy: The effect of final voltage[J]. Surface and Coatings Technology, 2024, 485: 130907.
https://doi.org/10.1016/j.surfcoat.2024.130907.
[18] 贺星宇, 武一剑, 杨婷, 等. 钛合金表面微弧氧化涂层耐蚀性研究进展[J]. 全面腐蚀控制, 2024, 38(08): 179- 181+186.
https://doi.org/doi/10.13726/j.cnki.11-2706/tq.2024.08.179.03.
[19] 庄俊杰, 张晓燕, 孙斌, 等. 微弧氧化对7050铝合金腐蚀行为的影响[J]. 工程科学学报, 2017, 39(10): 1532-1539.
https://doi.org/10.13374/j.issn2095-9389.2017.10.011.
[20] S. Bhowmick, F. Muhaffel, M. Kaba, et al. Temperaturedriven tribological behaviour of PEO-coated AZ31 sliding against MoS2-coated steel[J]. Surface and Coatings Technology, 2025, 509: 132185.
https://doi.org/10.1016/j.surfcoat.2025.132185.
[21] B. Jaleh, A. Nasri, R. Chaharmahali, et al. Exploring wear, corrosion, and microstructure in PEO coatings via laser surface treatments on aluminum substrates[J]. Optics & Laser Technology, 2025, 181: 111958.
https://doi.org/10.1016/j.optlastec.2024.111958

引用本文

王鑫阳, 鲁世彬, 王伟强. NaF添加剂对铝合金微弧氧化能耗与涂层性能的影响[J]. 中国材料科学进展, 2025, 4(2): 42-53.

Citation

WANG Xinyang, LU Shibin, WANG Weiqiang. Effect of NaF additive on energy consumption and coating properties in micro-arc oxidation of Aluminum alloy[J]. Progress in Chinese Materials Sciences, 2025, 4(2): 42-53.