Studies on the presence of copper in the galvanized coating on weathering steel and the adherence characteristic of the protective copper complex formed on galvanized weathering steel

Bhattacharjee, A K and Singh, Inder (1995) Studies on the presence of copper in the galvanized coating on weathering steel and the adherence characteristic of the protective copper complex formed on galvanized weathering steel. Journal of materials science, 30 (6). pp. 1617-1620.

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Abstract

Following the hot-dip process for zinc coating on weathering steel, the galvanizing bath was found to have picked up copper. The galvanizing bath was observed to pick up Cu from the weathering steel at an average rate of 1.83 x 10(-3)% s(-1) m(-2) at 452 +/- 2 degrees C. EDAX/SEM studies exhibited a concentration gradient of copper to exist across the thickness of the galvanized coating on weathering steel. XRD studies revealed the formation of a protective copper complex, (CU[(OH)(2)Cu](3))SO4, on galvanized coating containing 0.739% Cu, when exposed in marine and industrial atmospheres. The adherence characteristic of the copper complex to the galvanized coating was found to be very satisfactory.

Item Type:Article
Official URL/DOI:http://www.nmlindia.org
Uncontrolled Keywords:Galvanized Coating; Galvanized Weathering
Divisions:Corrosion and Surface Engineering
ID Code:1019
Deposited By:Sahu A K
Deposited On:15 Jun 2010 11:33
Last Modified:27 Jun 2012 14:22
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