ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Regular Article
Improvement of Galvanizability of Silicon-bearing Steel by Electrodeposited Iron Coating Containing Oxygen
Yoichi TobiyamaSakae FujitaToshio Maruyama
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2012 Volume 52 Issue 1 Pages 115-120


Iron coatings were prepared by electrodeposition in a bath containing citrate to improve the galvanizability of silicon-bearing steel.
The iron coating electrodeposited from the bath containing citrate contains more than 4 mass% oxygen. This oxygen originates from the incorporation of the hydroxide of Fe3+ during electroplating.
The oxygen-containing coating improves the galvanizability of the silicon-bearing steel by suppressing the surface segregation of silicon during annealing. This is because silicon in the steel reacts with oxygen in the oxygen-containing coating to form internal oxides during annealing.

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© 2012 by The Iron and Steel Institute of Japan
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