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Effects of Al2O3 Nano-Particles on Corrosion Performance of Plasma Electrolytic Oxidation Coatings Formed on 6061 Aluminum Alloy

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Abstract

Corrosion resistance improvement of plasma electrolyte oxidation coatings on 6061 aluminum alloy in silicate electrolyte containing Al2O3 nano-particles was studied, with particular emphasis on the microstructure, coating growth, and corrosion behavior in 3.5 wt.% NaCl solution. The microstructure of coatings, their thickness, and phase composition were characterized using scanning electron microscopy and x-ray diffraction. All characterization data showed that the maximum coating thickness and lowest amount of porosity were obtained in a low concentration of KOH, a high concentration of Na2SiO3, and moderate concentration of Al2O3 nano-particles in the electrolyte. This combination describes the optimum plasma electrolytic oxidation electrolyte, which has the best conductivity and oxidizing state, as well as the highest incorporation of electrolyte components in the coating growth process. On the other hand, incorporation and co-deposition of Al2O3 nano-particles were more pronounced than SiO3 2− ions in some level of molar concentration, which is due to the higher impact of electron discharge force on the adsorption of Al2O3 nano-particles. The electrochemical results showed that the best protective behavior was obtained in the sample having a coat with the lowest porosity and highest thickness.

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References

  1. H. Of, Analytical Characterization of Aluminium, Steel, and Superalloys, Taylor and Francis Group, New York, 2006

    Google Scholar 

  2. C. Vargel, Corrosion of Aluminium, Elsevier Ltd, Amsterdam, 2004

    Google Scholar 

  3. A. Fattah-Alhosseini, M. Vakili-Azghandi, and M.K. Keshavarz, Influence of Concentrations of KOH and Na2SiO3 Electrolytes on the Electrochemical Behavior of Ceramic Coatings on 6061 Al Alloy Processed by Plasma Electrolytic Oxidation, Acta Metall. Sin. (Engl. Lett.), 2016, 29(3), p 274–281

    Article  Google Scholar 

  4. A.L. Yerokhin, X. Nie, A. Leyland, A. Matthews, and S.J. Dowey, Plasma Electrolysis for Surface Engineering, Surf. Coat. Technol., 1999, 122, p 73–93

    Article  Google Scholar 

  5. P. Gupta, G. Tenhundfeld, E.O. Daigle, and D. Ryabkov, Electrolytic Plasma Technology: Science and Engineering—An Overview, Surf. Coat. Technol., 2007, 201, p 8746–8760

    Article  Google Scholar 

  6. F. Monfort, A. Berkani, E. Matykina, P. Skeldon, G.E. Thompson, H. Habazaki et al., Development of Anodic Coatings on Aluminium Under Sparking Conditions in Silicate Electrolyte, Corros. Sci., 2007, 49, p 672–693

    Article  Google Scholar 

  7. Y. Liu, J. Xu, Y. Gao, Y. Yuan, and C. Gao,Influences of Additive on the Formation and Corrosion Resistance of Micro-Arc Oxidation Ceramic Coatings on Aluminum Alloy, Phys. Proced., 2012, 32, p 107–112

    Article  Google Scholar 

  8. K. Wang, B.H. Koo, C.G. Lee, Y.J. Kim, S.H. Lee, and E. Byon, Effects of Electrolytes Variation on Formation of Oxide Layers of 6061 Al Alloys by Plasma Electrolytic Oxidation, Trans Nonferrous Met. Soc. China, 2009, 19, p 866–870

    Article  Google Scholar 

  9. M. Tang, W. Li, H. Liu, and L. Zhu, Influence of K2TiF6 in Electrolyte on Characteristics of the Microarc Oxidation Coating on Aluminum Alloy, Curr. Appl. Phys., 2012, 12, p 1259–1265

    Article  Google Scholar 

  10. Z. Wang, L. Wu, W. Cai, A. Shan, and Z. Jiang, Effects of Fluoride on the Structure and Properties of Microarc Oxidation Coating on Aluminium Alloy, J. Alloys Compd., 2010, 505, p 188–193

    Article  Google Scholar 

  11. S. Sarbishei, M.A. Faghihi Sani, and M.R. Mohammadi, Study Plasma Electrolytic Oxidation Process and Characterization of Coatings Formed in an Alumina Nanoparticle Suspension, Vacuum, 2014, 108, p 12–19

    Article  Google Scholar 

  12. Y. Yürektürk, F. Muhaffel, and M. Baydoğan, Characterization of Micro arc Oxidized 6082 Aluminum Alloy in an Electrolyte Containing Carbon Nanotubes, Surf. Coat. Technol., 2014, 269, p 83–90

    Article  Google Scholar 

  13. A. Bahramian, K. Raeissi, and A. Hakimizad, An Investigation of the Characteristics of Al2O3/TiO2 PEO Nanocomposite Coating, Appl. Surf. Sci., 2015, 351, p 13–26

    Article  Google Scholar 

  14. Y. Wang, D. Wei, J. Yu, and S. Di, Effects of Al2O3 Nano-Additive on Performance of Micro-Arc Oxidation Coatings Formed on AZ91D Mg Alloy, J. Mater. Sci. Technol., 2014, 30, p 1–7

    Google Scholar 

  15. A. Fattah-alhosseini, M. Sabaghi Joni, Effect of KOH Concentration on the Microstructure and Electrochemical Properties of MAO-Coated Mg Alloy AZ31B, J. Mater. Eng. Perform., 2015, 24, p 3444–3452

    Article  Google Scholar 

  16. V. Dehnavi, B.L. Luan, D.W. Shoesmith, X.Y. Liu, and S. Rohani, Effect of Duty Cycle and Applied Current Frequency on Plasma Electrolytic Oxidation (PEO) Coating Growth Behavior, Surf. Coat. Technol., 2013, 226, p 100–107

    Article  Google Scholar 

  17. H. Li, R. Song, and Z. Ji, Effects of Nano-Additive TiO2 on Performance of Micro-Arc Oxidation Coatings Formed on 6063 Aluminum Alloy, Trans. Nonferrous Met. Soc. China, 2013, 23, p 406–411

    Article  Google Scholar 

  18. H. Li, S. Lu, X. Wu, and W. Qin, Influence of Zr4+ Ions on Solar Absorbance and Emissivity of Coatings Formed on AZ31 Mg Alloy by Plasma Electrolytic Oxidation, Surf. Coat. Technol., 2015, 269, p 220–227

    Article  Google Scholar 

  19. M. Mohedano, C. Blawert, and M.L. Zheludkevich, Silicate-Based Plasma Electrolytic Oxidation (PEO) Coatings with Incorporated CeO2 Particles on AM50 Magnesium Alloy, Mater. Des., 2015, 86, p 735–744

    Google Scholar 

  20. V. Dehnavi, X.Y. Liu, B.L. Luan, D.W. Shoesmith, and S. Rohani, Phase Transformation in Plasma Electrolytic Oxidation Coatings on 6061 Aluminum Alloy, Surf. Coat. Technol., 2014, 251, p 106–114

    Article  Google Scholar 

  21. M. Aliofkhazraei and A.S. Rouhaghdam, Fabrication of Functionally Gradient Nanocomposite Coatings by Plasma Electrolytic Oxidation Based on Variable Duty Cycle, Appl. Surf. Sci., 2012, 258, p 2093–2097

    Article  Google Scholar 

  22. E. McCafferty,Validation of Corrosion Rates Measured by the Tafel Extrapolation Method, Corros. Sci., 2005, 47, p 3202–3215

    Article  Google Scholar 

  23. X. Zhang, Y. Zhang, L. Chang, Z. Jiang, Z. Yao, and X. Liu, Effects of Frequency on Growth Process of Plasma Electrolytic Oxidation Coating, Mater. Chem. Phys., 2012, 132, p 909–915

    Article  Google Scholar 

  24. Y. Yang and Y. Liu, Effects of Current Density on the Microstructure and the Corrosion Resistance of Alumina Coatings Embedded with SiC Nano-particles Produced by Micro-Arc Oxidation, J. Mater. Sci. Technol., 2010, 26, p 1016–1020

    Article  Google Scholar 

  25. L. Wen, Y. Wang, Y. Zhou, J.H. Ouyang, L. Guo, and D. Jia, Corrosion Evaluation of Microarc Oxidation Coatings Formed on 2024 Aluminium Alloy, Corros. Sci., 2010, 52, p 2687–2696

    Article  Google Scholar 

  26. J. Liang, B. Guo, J. Tian, H. Liu, J. Zhou, W. Liu et al., Effects of NaAlO2 on Structure and Corrosion Resistance of Microarc Oxidation Coatings Formed on AM60B Magnesium Alloy in Phosphate-KOH Electrolyte, Surf. Coat. Technol., 2005, 199, p 121–126

    Article  Google Scholar 

  27. V.S. Rudnev, Micro- and Nano-Formations on the Surface of Plasma Electrolytic Oxide Coatings on Aluminum and Titanium, Surf. Coat. Technol., 2013, 235, p 134–143

    Article  Google Scholar 

  28. V. Raj and M. Mubarak Ali, Formation of Ceramic Alumina Nanocomposite Coatings on Aluminium for Enhanced Corrosion Resistance, J. Mater. Process. Technol., 2009, 209, p 5341–5352

    Article  Google Scholar 

  29. E. Matykina, R. Arrabal, F. Monfort, P. Skeldon, and G.E. Thompson, Incorporation of Zirconia into Coatings Formed by DC Plasma Electrolytic Oxidation of Aluminium in Nanoparticle Suspensions, Appl. Surf. Sci., 2008, 255, p 2830–2839

    Article  Google Scholar 

  30. M. Shokouhfar, C. Dehghanian, M. Montazeri, and A. Baradaran, Preparation of Ceramic Coating on Ti Substrate by Plasma Electrolytic Oxidation in Different Electrolytes and Evaluation of its Corrosion Resistance: Part II, Appl. Surf. Sci., 2012, 258, p 2416–2423

    Article  Google Scholar 

  31. A. Venugopal, R. Panda, S. Manwatkar, K. Sreekumar, L.R. Krishna, and G. Sundararajan, Effect of Micro Arc Oxidation Treatment on Localized Corrosion Behaviour of AA7075 Aluminum Alloy in 3.5 NaCl Solution, Trans. Nonferrous Met. Soc. China, 2012, 22, p 700–710

    Article  Google Scholar 

  32. L. Hamadou, L. Aïnouche, A. Kadri, S.A.A. Yahia, and N. Benbrahim, Electrochemical Impedance Spectroscopy Study of Thermally Grown Oxides Exhibiting Constant Phase Element Behaviour, Electrochim. Acta., 2013, 113, p 99–108

    Article  Google Scholar 

  33. R.O. Hussein, D.O. Northwood, and X. Nie, The Effect of Processing Parameters and Substrate Composition on the Corrosion Resistance of Plasma Electrolytic Oxidation (PEO) Coated Magnesium Alloys, Surf. Coat. Technol., 2013, 237, p 357–368

    Article  Google Scholar 

  34. B. Hirschorn, M.E. Orazem, B. Tribollet, V. Vivier, I. Frateur, and M. Musiani, Determination of Effective Capacitance and Film Thickness from Constant-Phase-Element Parameters, Electrochim. Acta, 2010, 55, p 6218–6227

    Article  Google Scholar 

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Authors and Affiliations

  1. Department of Materials Engineering, Bu-Ali Sina University, Hamedan, 65178-38695, Iran

    Mojtaba Vakili-Azghandi & Arash Fattah-alhosseini

  2. Department of Mechanical Engineering, Polytechnique Montreal, Montreal, Canada

    Mohsen K. Keshavarz

Authors
  1. Mojtaba Vakili-Azghandi
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  2. Arash Fattah-alhosseini
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  3. Mohsen K. Keshavarz
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Correspondence to Arash Fattah-alhosseini.

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Vakili-Azghandi, M., Fattah-alhosseini, A. & Keshavarz, M.K. Effects of Al2O3 Nano-Particles on Corrosion Performance of Plasma Electrolytic Oxidation Coatings Formed on 6061 Aluminum Alloy. J. of Materi Eng and Perform 25, 5302–5313 (2016). https://doi.org/10.1007/s11665-016-2405-9

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  • DOI: https://doi.org/10.1007/s11665-016-2405-9

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