Shanmugasigamani, S. and Thangavelu, P.R. and Srinivasan, K.N. and Selvam, M. (2013) Alternate Zinc - Nickel alloy coating for hazardous Cadmium. International Journal of Advanced Research, 1 (10). pp. 495-509. ISSN 2320 5407

PDF - Published Version Restricted to Registered users only Download (1044Kb) | Request a copy

Abstract

Research on zinc – nickel alloy deposit from alkaline zincate cyanide free electrolyte was dealt to eliminate the use of potentially hazardous cadmium. To compare with cadmium separate deposition of cadmium from cadmium sulphate electrolyte was processed. Hull cell tests performed to determine the current density ranges with and without addition agents. SEM & EDAX, AFM, XRD observations indicated the deposit’s surface morphology and percentage of zinc & nickel present in the alloy, surface topography and crystallographic orientation. Surface characterisation studies were evaluated for cadmium also. Weight loss methods, Potentiodynamic polarization, and electrochemical impedance spectroscopy correlations show zinc – nickel alloy coatings have a better corrosion resistance and are considered to be eco friendly replacement for cadmium coatings in corrosion resistant applications

Item Type:	Article
Uncontrolled Keywords:	Zn – Ni alloy deposition; cadmium; Surface characterisation; Corrosion resistance; Potentiodynamic polarisation; Corrosion impedance
Subjects:	Industrial Metal Finishing
Divisions:	UNSPECIFIED
Depositing User:	Dr. N Meyyappan
Date Deposited:	06 Jan 2014 06:27
Last Modified:	06 Jan 2014 06:27
URI:	http://cecri.csircentral.net/id/eprint/3068

Actions (login required)

View Item