Saravanan, G. and Mohan, S. (2009) Corrosion behavior of Cr electrodeposited from Cr(VI) and Cr(III)-baths using direct (DCD) and pulse electrodeposition (PED) techniques. Corrosion Science, 51 (1). pp. 197-202. ISSN 0010-938X

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Abstract

A comparison was made between the electrochemical corrosion behaviors of chromium deposited from hexavalent [Cr(VI)] and trivalent [Cr(III)] chromium baths using direct current (DCD) and pulse electro deposited (PED) techniques. Chromium coatings were deposited on mild-steel (MS) substrate. The corrosion behavior of both DCD and PED chromium from Cr(VI) and Cr(III)-baths in 3.5%NaCl solution was studied using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The results indicated that PED chromium from Cr(VI) and Cr(III)-baths have higher charge-transfer resistance Rct and very low Icorr than that of DCD chromium on mild-steel substrate.

Item Type:	Article
Uncontrolled Keywords:	A. Metal coatings; A. Mild steel; Electrochemical impedance spectroscopy (EIS); Corrosion rate
Subjects:	Corrosion Science and Engineering
Divisions:	UNSPECIFIED
Depositing User:	TTBD CECRI
Date Deposited:	19 Jan 2012 08:45
Last Modified:	19 Jan 2012 08:45
URI:	http://cecri.csircentral.net/id/eprint/314

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