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Effect of Current Density on the Microstructure and Adhesion of Ni-Co/Al2O3 Composite Coatings

Published online by Cambridge University Press:  04 July 2016

Diana Alejo-Guerra ,
Carlos A. León-Patiño ,
Ena A. Aguilar-Reyes  and
José E. Bedolla-Becerril
Diana Alejo-Guerra
Affiliation:
Instituto de Investigación en Metalurgia y Materiales, Universidad Michoacana de San Nicolás de Hidalgo, Av. Francisco J. Múgica S/N Ciudad Universitaria, Morelia, Michoacán, C.P. 58030, México.
Carlos A. León-Patiño
Affiliation:
Instituto de Investigación en Metalurgia y Materiales, Universidad Michoacana de San Nicolás de Hidalgo, Av. Francisco J. Múgica S/N Ciudad Universitaria, Morelia, Michoacán, C.P. 58030, México.
Ena A. Aguilar-Reyes
Affiliation:
Instituto de Investigación en Metalurgia y Materiales, Universidad Michoacana de San Nicolás de Hidalgo, Av. Francisco J. Múgica S/N Ciudad Universitaria, Morelia, Michoacán, C.P. 58030, México.
José E. Bedolla-Becerril
Affiliation:
Instituto de Investigación en Metalurgia y Materiales, Universidad Michoacana de San Nicolás de Hidalgo, Av. Francisco J. Múgica S/N Ciudad Universitaria, Morelia, Michoacán, C.P. 58030, México.
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Abstract

Ni-Co/Al2O3 composites with alumina particles below 0.53 µm in size were electrochemically deposited on carbon steel AISI-O1 substrates. The influence of current density (2, 3, 4 and 5 mA/cm2) on the microstructure and adhesion behavior was investigated. It was found that the micro-hardness of the surface increased in 90% with respect to the plain substrate. SEM examination revealed an increased thickness from 3.7 to 10.7 µm at current density of 2 and 5 mA/cm2, respectively. The Co/Ni weight ratio in the coatings was determined by atomic absorption spectroscopy (AAS); the content of Co and Ni at 2 mA/cm2 were 42.4 %Co and 57.6 %Ni, while at 5 mA/cm2 were 44.5%Co and 55.5%Ni. The adhesion of the coatings was evaluated qualitatively according to the VDI 3198 norm; in all the cases, the adhesion was more than acceptable since no cracks or detachments were observed in the periphery of the marks. Details on the synthesis and properties of the Ni-Co/Al2O3 composite coatings are presented together with the excellent properties they show despite of their thin thickness.

Keywords

ElectrodepositionAdhesionCoating
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1820: Symposium 6D – Innovative production and application of structural and functional ceramic- and metal-matrix composites , 2016 , imrc2015s6d-0004
Copyright
Copyright © Materials Research Society 2016 

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References

REFERENCES

Gül, H., Kılıç, F., Uysal, M., Aslan, S., Alp, A., and Akbulut, H., “Effect of particle concentration on the structure and tribological properties of submicron particle SiC reinforced Ni metal matrix composite (MMC) coatings produced by electrodeposition,” Applied Surface Science, vol. 258, pp. 4260–4267, 3/1/ 2012.CrossRefGoogle Scholar
Wu, G., Li, N., Zhou, D., and Mitsuo, K., “Electrodeposited Co–Ni–Al2O3 composite coatings,” Surface and Coatings Technology, vol. 176, pp. 157–164, 1/1/ 2004.CrossRefGoogle Scholar
Saha, R. K. and Khan, T. I., “Effect of applied current on the electrodeposited Ni–Al2O3 composite coatings,” Surface and Coatings Technology, vol. 205, pp. 890–895, 10/25/ 2010.CrossRefGoogle Scholar
Vidakis, N., Antoniadis, A., and Bilalis, N., “The VDI 3198 indentation test evaluation of a reliable qualitative control for layered compounds,” Journal of Materials Processing Technology, vol. 143–144, pp. 481–485, 12/20/ 2003.CrossRefGoogle Scholar
Silva, R.P., Eugeńio, S., Silva, T.M., Carmezim, M.J. and Montemor, M.F., “Fabrication of Three-Dimensional Dendritic Ni−Co Films By Electrodeposition on Stainless Steel Substrates”, The Journal of Physical Chemistry C, vol. 116, pp. 22425−22431, 2012.CrossRefGoogle Scholar
Orinakova, R., Turonova, A., Kladekova, D. and Galova, M., and Smith, R.M., “Recent developments in the electrodeposition of nickel and some nickel-based alloys”, Journal of Applied Electrochemestry, Vol. 36, pp. 957−972, 2006.CrossRefGoogle Scholar
Goḿez, E., Ramirez, J. and Valleś, E., “Electrodeposition of Co-Ni alloys”, Journal of Applied Electrochemestry, vol. 28, pp- 71–79, 1998.CrossRefGoogle Scholar
Gyftou, P., Pavlatou, E. A., and Spyrellis, N., “Effect of pulse electrodeposition parameters on the properties of Ni/nano-SiC composites,” Applied Surface Science, vol. 254, pp. 5910–5916, 7/15/ 2008.CrossRefGoogle Scholar