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Nanofabricated multilayer coatings of Zn-Ni alloy for better corrosion protection

  • Nanoscale and Nanostructured Materials and Coatings
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Abstract

As an effort to increase the corrosion resistance of conventional monolayer Zn-Ni alloy coating, the multilayer Zn-Ni alloy coating have been done electrolytically on mild steel (MS), using gelatin and glycerol as additives. Multilayered, or more correctly composition modulated multilayer alloy (CMMA) coatings have been developed using square current pulse. Successive layers of alloys, in nanometric scale having alternately changing composition were fabricated by making the cathode current to cycle between two values, called cyclic cathode current densities (CCCD’s). The coatings having different configuration, in terms of composition and thicknesses of individual layers were developed and their corrosion performances were evaluated by electrochemical methods. The corrosion rate (CR)’s were found to decrease drastically with progressive increase in number of layers (up to 300 layers), and then increased. The coating configurations have been optimized for best protection against corrosion. The CMMA Zn-Ni coating having 300 layers was found to be about 37 times more corrosion resistant than corresponding monolayer alloy, developed from same bath for same time. High protection efficacy of the coatings were attributed to alternate layers of alloys having different surface structure and composition, supported by Scanning Electron Microscopy (SEM) and X-Ray Diffraction (XRD) study, respectively. Optimization procedure has been explained, and results are discussed.

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References

  1. Kalantary, M.R., Wilcox, G.D., and Gabe, D.R., Electrochim. Acta, 1995, vol. 40, no. 11, p. 1609.

    Article  CAS  Google Scholar 

  2. Maciej, A., Nawrat, G., Simka, W., and Piotrowski, J., Mat. Chem. Phys., 2012, vol. 132, p. 1095.

    Article  CAS  Google Scholar 

  3. Blum, W., Trans. Am. Electrochem. Soc., 1921, vol. 40, p. 307.

    Google Scholar 

  4. Brenner, A., Electrodeposition of Alloys: Principles and Practice, N.Y.: Academic Press, 1963, vol. 2, p. 589.

    Google Scholar 

  5. Tench, D. and White, J., Tensile J. Electrochem. Soc., 1991, vol. 138, p. 3757.

    Article  CAS  Google Scholar 

  6. Kalantary, M.R., Wilcox, G.D., and Gabe, D.R., Br. Corros. J., 1998, vol. 33, p. 197.

    Article  CAS  Google Scholar 

  7. Jing-yin Fei and Wilcox, G.D., Surf Coat Tech., 2006, vol. 2000, p. 3533.

    Google Scholar 

  8. Fei Jing-yin, Liang Guo-zheng, et al., J. Iron Steel Res., 2006, vol. 13, no. 4, p. 61.

    Article  CAS  Google Scholar 

  9. Rahsepar, M. and Bahrololoom, M.E., Corros. Sci., 2009, vol. 51, p. 2537.

    Article  CAS  Google Scholar 

  10. Liao, Y., Gabe, D.R., and Wilcox, G.D., Plat. Surf. Finish., 1998, vol. 85, no. 9, p. 88.

    CAS  Google Scholar 

  11. Kirilova, I. and Ivanov, I., J. Appl. Electrochem., 1999, vol. 29, p. 1133.

    Article  CAS  Google Scholar 

  12. Kirilova, I., Ivanov, I., and Rashkov, St., J. Appl. Electrochem., 1998, vol. 28, p. 1359.

    Article  CAS  Google Scholar 

  13. Thangaraj, A., et al., Chin. J. Chem., 2008, vol. 26, p. 1.

    Article  Google Scholar 

  14. Venkatakrishna, K. and Chitharanjan Hegde, A., J. Appl. Electrochem., 2010, vol. 40, p. 2051.

    Article  CAS  Google Scholar 

  15. Thangaraj, V., Eliaz, N., and Chitharanjan Hegde, A., J. Appl. Electrochem., 2009, vol. 39, p. 339.

    Article  CAS  Google Scholar 

  16. Bhat Ramesh, et al., Prot. Met. Phys. Chem. Surf., 2011, vol. 47, no. 5, p. 645.

    Article  CAS  Google Scholar 

  17. Parthasaradhy, N.V., Practical Electroplating Handbook Simon and Schuster Englewood, New Jersey: Cliffs, 1989.

    Google Scholar 

  18. Nasser Kanani, Electroplating: Basic Principles Processes and Practice, Berlin: Elsevier Ltd., 2006.

    Google Scholar 

  19. Injetic Gurrappa and Binder, L., Sci. Technol. Adv. Mater., 2008, vol. 9, p. 43001.

    Article  Google Scholar 

  20. Prabhu Ganeshan, et al., Surf. Coat. Technol., 2007, vol. 201, p. 7896.

    Article  Google Scholar 

Download references

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Authors and Affiliations

  1. Electrochemistry Research Laboratory, Department of Chemistry, National Institute of Technology Karnataka, Surathkal Srinivasnagar, 575025, India

    V. R. Rao & A. Chitharanjan Hegde

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  1. V. R. Rao
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  2. A. Chitharanjan Hegde
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Correspondence to V. R. Rao.

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Rao, V.R., Chitharanjan Hegde, A. Nanofabricated multilayer coatings of Zn-Ni alloy for better corrosion protection. Prot Met Phys Chem Surf 49, 693–698 (2013). https://doi.org/10.1134/S2070205113060269

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  • DOI: https://doi.org/10.1134/S2070205113060269

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