Effect of Current Density on the Microstructure and Corrosion Properties of MAO Coatings on Aluminum Alloy Shock Absorber

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In order to improve the corrosion resistance of shock absorber for ships, the alumina ceramic coatings are carried out on the surface of aluminum alloy shock absorber by micro arc oxidation (MAO) technology. The microstructure and anti-corrosion performance of the MAO coatings were investigated experimentally. This paper mainly focuses on the experimental work to determine the effect of current density on the structural characteristics and corrosion resistance of MAO coatings. The results show that the current density has a significant influence on the preparation of MAO coating during the process. The surface of the coating becomes more compact and smooth with the cathode voltage of 7 A.dm-2. Furthermore, the anti-corrosion performance of the MAO coatings can effectively be improved at the current density of 7 A.dm-2.

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Edited by:

Hun Guo, Taiyong Wang, Zijing Wang, Hongfeng Wang and Ji Xu

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28-38

Citation:

Y. Shen et al., "Effect of Current Density on the Microstructure and Corrosion Properties of MAO Coatings on Aluminum Alloy Shock Absorber", Key Engineering Materials, Vol. 764, pp. 28-38, 2018

Online since:

February 2018

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$38.00

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[1] Reza Hojjati-Talemi, Ali Zahedi, Patrick De Baets (2015). Fretting fatigue failure mechanism of automotive shock absorber valve. International Journal of Fatigue, Volume 73, pp.58-65.

DOI: https://doi.org/10.1016/j.ijfatigue.2014.11.010

[2] Gallardo JM, Soria L, Herrera EJ (2007). Investigation of service failures in automobile shock absorbers. Engineering Failure Analysis, Volume 14, pp.355-363.

DOI: https://doi.org/10.1016/j.engfailanal.2006.02.006

[3] D.S. Mehta, S.H. Masood, W.Q. Song (2004). Investigation of wear properties of magnesium and aluminum alloys for automotive applications. Materials Processing Technology, Volumes 155-156, pp.1526-1531.

DOI: https://doi.org/10.1016/j.jmatprotec.2004.04.247

[4] W. S Millera, L Zhuanga, J Bottemaa, A. J Wittebrooda, P De Smetb, A Haszlerc, A Viereggec (2000). Recent development in aluminium alloys for the automotive industry. Materials Science and Engineering: A, Volume 280, Issue 1, pp.37-49.

[5] Wang Ping, Wu Ting, Peng Hao, Guo Xiao Yang (2016). Effect of NaAlO2 concentrations on the properties of micro-arc oxidation coatings on pure titanium. Materials Letters, Volume 170, pp.171-174.

DOI: https://doi.org/10.1016/j.matlet.2016.02.024

[6] Xiangyu Lu, Xingguo Feng, Yu Zuo, Chuanbo Zheng, Sheng Lu, Lei Xu (2015).

[7] Young Gun Ko, Seung Namgung, Dong Hyuk Shin (2010). Correlation between KOH concentration and surface properties of AZ91 magnesium alloy coated by plasma electrolytic oxidation. Surface and Coatings Technology, Volume 205, pp.2525-2531.

DOI: https://doi.org/10.1016/j.surfcoat.2010.09.055

[8] V. Ezhilselvi, J. Nithina, J.N. Balarajua, S. Subramanian (2016). The influence of current density on the morphology and corrosion properties of MAO coatings on AZ31B magnesium alloy. Surface and Coatings Technology, Volume 288, pp.221-229.

DOI: https://doi.org/10.1016/j.surfcoat.2016.01.040

[9] Han Chunxia, Liu Xiangdong, Liu Caiwen, Liu Yongzhen, Wang Xiaojun (2007). Effect of cathode voltage in micro-arc oxidation on ceramic coating film of ZAlSi12Cu2Mg1 alloy. Rare Metal Materials and Engineering, Volume 36, pp.117-120.

DOI: https://doi.org/10.1016/s1002-0721(07)60529-8

[10] Xiaohong Yao, Xiangyu Zhang, Haibo Wu, Linhai Tian, Yong Ma, Bin Tang (2014). Microstructure and antibacterial properties of Cu-doped TiO2 coating on titanium by micro-arc oxidation. Applied Surface Science, Volume 292, pp.944-947.

DOI: https://doi.org/10.1016/j.apsusc.2013.12.083

[11] Xizhi Fan, Ying Wang, Binglin Zou, Lijian Gu, Wenzhi Huang, Xueqiang Cao (2013). Preparation and corrosion resistance of MAO/Ni-P composite coat on Mg alloy. Applied Surface Science, Volume 277, pp.272-280.

DOI: https://doi.org/10.1016/j.apsusc.2013.04.044

[12] Chun-Chieh Tseng, Jeou-Long Lee, Tzu-Hsuan Kuo, Shien-Nan Kuo, Kuo-Hui Tseng (2012).

DOI: https://doi.org/10.1016/j.surfcoat.2012.02.002

[13] Feng Guo, Rong Ming Liu, Peng Fei Li (2011). Influence of Voltage Parameters on Formation Process of MAO Ceramic Coating on Aluminum Alloy. Advanced Materials Research, Volumes 189-193, pp.931-936.

DOI: https://doi.org/10.4028/www.scientific.net/amr.189-193.931

[14] M.H. Zhu, Z.B. Cai, X.Z. Lin, P.D. Ren, J. Tan, Z.R. Zhou (2007). Fretting wear behaviour of ceramic coating prepared by micro-arc oxidation on Al–Si alloy. Wear, Volume 263, Issues 1-6, pp.472-480.

DOI: https://doi.org/10.1016/j.wear.2007.01.050

[15] Chun-Chieh Tseng, Jeou-Long Lee, Tzu-Hsuan Kuo, Shien-Nan Kuo, Kuo-Hui Tseng (2012).

DOI: https://doi.org/10.1016/j.surfcoat.2012.02.002