Micro-arc Oxidation Coating Formed on Anodized Aluminum Surface under Different Pulse Frequencies

被引：3

作者：

Zhao, Xuping ^{[1
]}

Liu, Dan ^{[1
]}

Lu, Jieqin ^{[1
]}

Wei, Guoying ^{[1
]}

机构：

[1] China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou, Zhejiang, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2017年 / 12卷 / 09期

关键词：

aluminum; anodization; micro-arc oxidation; pulse frequency; CERAMIC COATINGS; MAGNESIUM ALLOY; MICROSTRUCTURE; PERFORMANCE; RESISTANCE; SUBSTRATE; VOLTAGES; ACID;

D O I：

10.20964/2017.09.02

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The microstructure and corrosion behavior of the micro-arc oxidation (MAO) coating formed on the surface of anodization film under different pulse frequencies have been investigated. Microstructure of the coatings were examined by scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS) and X-ray diffractometer (XRD). Corrosion resistance of anodized coatings were evaluated by potentiodynamic polarization. The results reveal that the coating surface is more compact and the corrosion resistance is better with corrosion current one order of magnitude lower than coatings at lower frequencies. The surface roughness and hardness increased with the pulse frequencies. Al peaks decreased with the pulse frequency, indicating that more and more compact structure existed in the coatings.

引用

页码：7922 / 7930

页数：9

共 50 条

[1] Effects of Pulse Duration on Structure and Surface Characteristics of Micro-Arc Oxidation Coatings Formed on Aluminum Alloy
Yilmaz, M. S.
Sahin, O.
ACTA PHYSICA POLONICA A, 2016, 129 (04) : 673 - 676
[2] Ceramic oxide coating formed on beryllium by micro-arc oxidation
He, Shixiong
Ma, Yanlong
Ye, Hong
Liu, Xiangdong
Dou, Zuoyong
Xu, Qingdong
Wang, Haijun
Zhang, Pengcheng
CORROSION SCIENCE, 2017, 122 : 108 - 117
[3] Micro-arc oxidation of aluminum
Nieuzyla, Lukasz
Nawrat, Ginter
Michalska, Joanna
OCHRONA PRZED KOROZJA, 2011, 54 (4-5): : 243 - 245
[4] The rules of growth of the micro-arc oxidation coating on aluminum alloy
Bai, J. C.
Guo, Y. F.
Huang, H.
Liang, K.
Lu, Z. S.
PROCEEDINGS OF THE 15TH INTERNATIONAL SYMPOSIUM ON ELECTROMACHINING, 2007, : 539 - 542
[5] Influence of negative pulse on aluminum alloy micro-arc oxidation
School of Engineering Machinery, Chang'an University, Xi'an 710064, China
Chang'an Daxue Xuebao, 2007, 1 (96-98):
[6] Influence of micro-arc oxidation discharge sparks on the surface roughness of aluminum alloy coating
Liu, Xinghua
Zhu, Liqun
Liu, Huicong
Li, Weiping
Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University, 2014, 35 (04): : 510 - 515
[7] Alumina coating formed on medical NiTi alloy by micro-arc oxidation
Xu, J. L.
Liu, F.
Wang, F. P.
Zhao, L. C.
MATERIALS LETTERS, 2008, 62 (25) : 4112 - 4114
[8] Analysis on corrosion of aluminum-based micro-arc oxidation coating
Yang, Yuanhang
Feng, Gang
Gu, Yanhong
Zhao, Jie
Liang, Jian
ANTI-CORROSION METHODS AND MATERIALS, 2021, 68 (05) : 404 - 412
[9] Adhesion and Corrosion Resistance of Micro-Arc Oxidation/Polyurethane Composite Coating on Aluminum Alloy Surface
Wang, Ruitao
Xu, Hong
Yao, Zhongping
Li, Chunxiang
Jiang, Zhaohua
APPLIED SCIENCES-BASEL, 2020, 10 (19):
[10] Performance evaluation of scanning micro-arc oxidation ceramic coating on aluminum alloy under different current working modes
Zhu, Zhiqiang
Li, Shubo
Xue, Zhichen
Liu, Zhenhua
Tu, Nan
Lu, Hailin
MATERIALS CHEMISTRY AND PHYSICS, 2025, 336

← 1 2 3 4 5 →