Marikkannu, C. and Sathiyanarayanan, S. and Mukherjee, D. (2001) Study of the zinc phosphate coating formation on steel impedance spectroscopy. Transactions of the Metal Finishers Association of India, 10 (02). pp. 93-97.

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Abstract

Zinc phosphating of steel is a pre-treatment process used to improve the adhesion of the overcoats and under film corrosion resistance. In this investigation, an attempt has been made to use impedance spectroscopy as a tool for monitoring the phosphate coating formation on steel at OCP by applying an a.c.signal of 20 mV in the frequency range of 10 kHz to 1 Hz as a function of time. The impedance results have been complemented by the potential-time measurements. Results showed depressed semi-circles in the Nyquist plots, the diameter and depression of such capacitive loops increases with time of immersion

Item Type:	Article
Subjects:	Corrosion Science and Engineering
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	08 May 2012 07:24
Last Modified:	08 May 2012 07:24
URI:	http://cecri.csircentral.net/id/eprint/2474

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