Corrosion Resistance of Al2O3-ZrO2 Composite Coating by Microarc Oxidation on 2A12 Aluminum Alloy

Yu Hai Li; Yan Zhao; Bao Yi Li

doi:10.4028/www.scientific.net/AMR.189-193.672

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 189-193Corrosion Resistance of Al2O3-ZrO2 Composite...

Corrosion Resistance of Al₂O₃-ZrO₂ Composite Coating by Microarc Oxidation on 2A12 Aluminum Alloy

Abstract:

The Al₂O₃-ZrO₂ composite ceramic coatings were prepared on 2A12 aluminum alloy by Microarc oxidation in the mixed electrolyte of 40g/L Na₂SiO₃ and 8g/L Na₂WO₄ solution containing different ZrO₂ content particles. The thickness of the coatings was measured by an eddy current thickness meter. Microstructure and phase composition were analyzed by scanning election microscopy (SEM) and X-Ray diffraction (XRD), respectively. The experimental results show that ZrO₂ in electrolyte can promote coatings growth; Al₂O₃-ZrO₂ composite ceramic coatings consist of α-Al₂O₃, t-ZrO₂, m-ZrO₂, and ZrO₂ is located in island-like discharge channels and does not destroy the integrity of composite coatings; There is scarcely any erosion on the surface of Al₂O₃-ZrO₂ composite coatings because the intermediate product Zr(OH)₄ could suppress composite coating corrosion.

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Periodical:

Advanced Materials Research (Volumes 189-193)

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672-675

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.189-193.672

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Online since:

February 2011

Authors:

Yu Hai Li, Yan Zhao, Bao Yi Li

Keywords:

Aluminium Alloy, Composite Ceramic Coating, Corrosion Resistance, Micro-Arc Oxidation (MAO)

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References

[1] M. R. Bayati, A. Z. Moshfegh: Electrochimica Acta Vol. 55 (2010), p.2760.

Google Scholar

[2] B. Rajasekaran, S. Ganesh Sundara Raman, L. Rama Krishna, S. V. Joshi, G. Sundararajan: Surface and Coatings Technology Vol. 202 (2008), p.1462.

DOI: 10.1016/j.surfcoat.2007.06.058

Google Scholar

[3] Y. M. Wang, D. C. Jia, L. X. Guo, T. Q. Lei, B.L. Jiang: Materials Chemistry and Physics Vol. 90 (2005), p.128.

Google Scholar

[4] V. N. Malyshev, K. M. Zorin: Applied Surface Science Vol. 79 (2000), p.1.

Google Scholar

[5] Xijin Li, Guoan Cheng, Wenbin Xue. Materials Chemistry and Physics Vol. 107 (2008), p.148.

Google Scholar

[6] Xuetong Sun, Zhaohua Jiang, Shigang Xin, Zhongping Yao: Thin Solid Film Vol. 471 (2005), p.194.

Google Scholar

[7] Hojun Song, Kyung Ha Shin, Min Suk Kook, Hee Kyun Oh, Yeong Joon Park: Surface and Coatings Technology Vol. 204 (2010), p.2273.

Google Scholar

[8] F. Mecuson, T. Czerwiec, T. Belmont, L. Dujardin: Surface and Coatings Technology Vol. 200 (2005), p.804.

Google Scholar

[9] Jun Liang, Litian Hu, Jingcheng Hao: Applied Surface Science Vol. 253 (2007), p.6939.

Google Scholar

[10] Junming Li, Hui Cai, Bailing Jiang: Surface and Coatings Technology Vol. 201 (2007), p.8702.

Google Scholar

[11] H.Y. Zheng, Y.K. Wang, B.S. Li, G.R. Han: Materials Letter Vol. 59 (2005), p.139.

Google Scholar

[12] Wenbin Xue, Xiaoling Wu, Xijin Li, Hua Tian: Journal of Alloys and Compounds Vol. 425 (2006), P. 302.

Google Scholar

[13] Zhijiang Wang, Lina Wu, Yulin Qi, Zhaohua Jiang: Applied Surface Science Vol. 256 (2010), p.3445.

Google Scholar

[14] J. Datta, B. Samanta, A. Jana, S. Sinha, C. Bhattacharya, S. Bandyopadhyay: Corrosion Science Vol. 50 (2008), p.2658.

Google Scholar