Sobha , J. and Malathy, P. and Natarajan, S.R. and Subramanian, R. (1986) Copper undercoats on the corrosion resistance of bright nickel-chromium and of nickel-iron-chromium electrodeposits on steel substrates. Bulletin of Electrochemistry , 2 (3). pp. 251-255. ISSN 0256-1654

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The present paper deals with the testing of the newly developed nickel-iron plating process with regard to the corrosion performance of coatings produced. Aceticacid saltspray method he6 been used as the test method.The results show that mild steel plated with nickel iron-chromium systems with iron contents up to 35 %are suitable for indoor applications though slightly inferior to nickelchromium systems. Uterature reports suggest that nickelchromium systems for outdoor applications are to be modified by inducing microporosity in the chromium top layer and by giving suitable undercoats. The use of a microporous chromium topcoat in improving the performance of nickel and nickel iron coatings are tested. The effect of copper undercoats on the corrosion performance of nickel and nickel iron-chromium systems are compared and it is concluded that a copper undercoat is more beneficial for a nickel ironchromium system than a ni~ekhromium system.

Item Type: Article
Uncontrolled Keywords: Corrosion resistance; Ni-Cr, Ni-Fe-Cr; Electrodeposition; copper undercoat
Subjects: Industrial Metal Finishing
Depositing User: ttbdar CECRI
Date Deposited: 23 Mar 2012 12:57
Last Modified: 23 Mar 2012 12:57

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