Characterization of the ceramic coating formed on 2024 al alloy by scanning plasma electrolytic oxidation

被引：0
作者：
Xu, Xingrui [1 ]
Jia, Weiping [1 ]
Yin, Tingting [4 ]
Dong, Qi [2 ]
Ma, Yutao [1 ]
Wang, Zhen [1 ]
Zhao, Zhilong [3 ]
Lv, Pengxiang [1 ]
机构：
[1] Dalian Univ, Sch Mech Engn, Dalian 116600, Peoples R China
[2] Sinopec Maoming Petrochem Co Ltd, Maoming 525000, Guangdong, Peoples R China
[3] Dalian Univ, Thorac Surg Dept, Affiliated Zhongshan Hosp, Dalian, Liaoning, Peoples R China
[4] Dalian Univ, Coll Environm & Chem Engn, Dalian 116600, Peoples R China
来源：
SCIENTIFIC REPORTS | 2025年 / 15卷 / 01期
关键词：
Ceramic coating; Corrosion; Scanning plasma electrolytic oxidation; 2024 Al alloy; CORROSION-RESISTANCE; MICROARC OXIDATION; PHASE-COMPOSITION; PEO PROCESS; MICROSTRUCTURE; ALUMINUM; MECHANISM; BEHAVIOR;
D O I：
10.1038/s41598-025-93028-y
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
This study investigates the characteristics and performance of ceramic coatings fabricated on 2024 aluminum alloy surfaces using the scanning plasma electrolytic oxidation (SPEO) process. The effects of various scanning parameters, including discharge gap, scanning frequency, scanning speed, and overlap rate, on coating properties were systematically examined. The coatings were characterized using potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), microhardness testing, roughness analysis, and thickness measurement. The results reveal that optimizing scanning parameters significantly enhances coating performance. The SPEO process enables efficient localized coating deposition through progressive scanning, achieving performance comparable to that of conventional full-surface PEO. Although the high current density associated with the SPEO process generates more surface pores and microcracks, which slightly affect hardness, roughness, and corrosion resistance, the differences are minimal and acceptable for most applications. Furthermore, the SPEO process demonstrates high efficiency in repairing large or complex components, highlighting its significant potential for industrial applications.
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页数：12
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共 26 条
  • [1] Al-qawabeha U., Et al., Properties and structures of micro-arc oxide coatings on airplane aluminum alloys, J. Mech. Sci. Technol, pp. 1-6, (2025)
  • [2] Pezzato L., Et al., Effect of different types of glass powders on the corrosion and wear resistance of Peo coatings produced on 6061 aluminum alloy, Met. Mater. Int, (2024)
  • [3] Wu T., Blawert C., Serdechnova M., Zheludkevich M.L., Dissimilar metal joints on macro-and micro scales: impact on PEO processing-A review. J. Mater. Sci, Technol, (2024)
  • [4] Jadhav P., Bongale A., Kumar S., A review of process characteristics of plasma electrolytic oxidation of aluminium alloy, J. Phys. : Conf. Ser, 1854, (2021)
  • [5] Pezzato L., Gennari C., Franceschi M., Brunelli K., Influence of silicon morphology on direct current plasma electrolytic oxidation process in AlSi10Mg alloy produced with laser powder bed fusion, Sci. Rep, 12, (2022)
  • [6] Dudareva N.Y., Kruglov A., Gallyamova R., Structure and thermophysical properties of coatings formed by the method of microarc oxidation on an aluminum alloy AK4-1, Solid State Phenom, 284, pp. 1235-1241, (2018)
  • [7] Markov M., Et al., Study of the microarc oxidation of aluminum modified with silicon carbide particles, Russ. J. Appl. Chem, 91, pp. 543-549, (2018)
  • [8] Fattah-Alhosseini A., Keshavarz M.K., Molaei M., Gashti S.O., Plasma electrolytic oxidation (PEO) process on commercially pure Ti surface: Effects of electrolyte on the microstructure and corrosion behavior of coatings, Metall. Mater. Trans. A, 49, pp. 4966-4979, (2018)
  • [9] Nikoomanzari E., Et al., Impressive strides in antibacterial performance amelioration of Ti-based implants via plasma electrolytic oxidation (PEO): A review of the recent advancements, Chem. Eng. J, 441, (2022)
  • [10] Yao W., Et al., Recent advances in protective coatings and surface modifications for corrosion protection of Mg alloys, J. Mater. Res. Technol, (2024)
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