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In-situ analysis of inner crack instability of electro-deposited trivalent chromium layers using small angle neutron scattering

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Abstract

Inner crack behavior of electro-deposited trivalent chromium was analyzed in-situ by small angle neutron scattering to study the abrasive heating effect on neutral salt fog spray life. The trivalent chromium was prepared by different current wave forms, namely, direct and pulse current-plating with a modified chromium chloride bath. The trivalent chromium layer has columnar grains in which small chromium clusters and inner cracks are present. Pulse current plated trivalent chromium has a longer neutral salt fog spray life than direct current plated trivalent chromium. As surface temperature increases to 80 °C, inner cracks of the trivalent chromium layer formed by direct current plating tend to have a fractal shape by opening crack tips, whereas those of the chromium layer formed by pulse current plating are relatively stable. The inner crack with a fractal shape is related to an abrupt reduction of the neutral salt fog spray life of the trivalent chromium.

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References

  1. M. S. Chandrasekar and M. Pushpavanam, Electrochemical Acta 53, 3313 (2008).

    Article  CAS  Google Scholar 

  2. I. Drela, J. Szynkarczuk, and J. Kubicki, J.Appl. Electrochem. 19, 933 (1989).

    Article  CAS  Google Scholar 

  3. Y. Choi, M. Y. Choi, Y. S. Hahn, M. Kim, and S. C. Kwon, Materials Science Forum 475, 4005 (2005).

    Article  Google Scholar 

  4. Y. Choi, M. Kim, and S. C. Kwon, Surface and Coating Technology 169, 81 (2003).

    Article  Google Scholar 

  5. J. S. Kim, R. H. Song, S. I. Pyun, and H. C. Kim, J. Mater. Sci. 24, 2704 (1989).

    Article  CAS  Google Scholar 

  6. N. V. Mandich, Plating and Surface Finishing 84, 108 (1997).

    CAS  Google Scholar 

  7. V. Mengarekki, M. Zeghal, L. Auvray, and D. Clemens, Physcal Review, E84, 21805 (2011).

    Google Scholar 

  8. K. Kohlbrecher, SASFIT (c), version 08.2, PSI, Switzerland (2007).

    Google Scholar 

  9. J. C. Puippe, Theory and Practice of Pulse Plating, p. 177, American Electroplaters Surface Finishers Society, Orlando, FL (1986).

    Google Scholar 

  10. H. H. Wan and H. Y. Cheh, J. Electrochemical Society 135, 643 (1988).

    Article  CAS  Google Scholar 

  11. Ryong-Joon Roe, “Method of X-ray and Neutron Scattering in Polymer Science”, p. 178, Oxford University Press, New York (2000).

    Google Scholar 

  12. Y. Choi, Met. Mater. Int.l, 16, 755 (2010).

    Article  CAS  Google Scholar 

  13. T. G. Woo, I. S. Park, W. Y. Jeon, E. K. Park, K. H. Jung, H. W. Lee, M. H. Lee, and K. W. Seol, Korean J. Met. Mater. 48, 951 (2010).

    Article  CAS  Google Scholar 

Download references

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Dankook University, San-29 Anseo-dong, Dongnam-gu, Cheonan, Chungnam, 330-714, Korea

    Yong Choi

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  1. Yong Choi
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Correspondence to Yong Choi.

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Choi, Y. In-situ analysis of inner crack instability of electro-deposited trivalent chromium layers using small angle neutron scattering. Met. Mater. Int. 18, 667–671 (2012). https://doi.org/10.1007/s12540-012-4015-x

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  • DOI: https://doi.org/10.1007/s12540-012-4015-x

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