Effect of Rotational Speed on Coating Thickness during Zinc Deposition on Copper by Friction Surfacing

Effect of Rotational Speed on Coating Thickness during Zinc Deposition on Copper by Friction Surfacing
Authors : N. Gopikrishna, N. Sudheer Kumar, P. Sammaiah
Publication Date: 05-01-2015


Author(s):  N. Gopikrishna, N. Sudheer Kumar, P. Sammaiah

Published in:   International Journal of Engineering Research & Technology

License:  This work is licensed under a Creative Commons Attribution 4.0 International License.

Website: www.ijert.org

Volume/Issue:   Vol. 4 - Issue 01 (January - 2015)

e-ISSN:   2278-0181


Copper has excellent thermal conductivity and is mainly applied in electrical and machinery applications, excellent workability and reproducibility, apart from these it is cheap and abundantly available metal other than good conducting metals like silver. But has poor mechanical properties such as hardness and wear resistance. Its main disadvantage is its poor resistance in aggressive environment which can be significantly enforced by the coating of ZnO. It is one of the most effective ways to protect copper components because of its ability to form Cu-Zn components which is more resistant to oxidation. Zn is very reactive with oxygen and form ZnO which is impermeable for most of the atmosphere elements, so their presences on the surface of the coating passivate the substrate from further oxidation. For this study, the effect of deposition time, coating thickness and microstructure of Zinc coatings on Copper substrates by friction surfacing process using a Vertical Milling Machine apparatus, was investigated. The effects of longitudinal feed on the geometry and mechanical properties of coatings are studied. Metallurgical studies were made using optical microscopy.


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