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The Effect of Sb Addition on the High Temperature Oxidation in the Steels  

Oh, I.S. (School of Advanced Materials Engineering, Chungnam National University)
Cho, K.C. (School of Advanced Materials Engineering, Chungnam National University)
Kim, D.H. (School of Advanced Materials Engineering, Chungnam National University)
Kim, G.M. (School of Advanced Materials Engineering, Chungnam National University)
Sohn, I.R. (Technical Research Labs, POSCO)
Publication Information
Korean Journal of Metals and Materials / v.47, no.4, 2009 , pp. 228-234 More about this Journal
Abstract
It is well known that the formation of $SiO_2$, $Al_2O_3$ and/or other oxides at the steel surface during the annealing process deteriorates the surface quality of galvanized steels. It is important to minimize oxide formation during the annealing process for the superior surface quality of galvanized steels. In order to minimize the oxide formation on the steel surface, antimony was chosen as an alloying element to the commercial steels. Then, the effect of alloying element on the oxidation behavior was investigated. A small amount of antimony was added to two types of steels, one with 0.1% C, 1.0% Si, 1.5% Mn, 0.08% P, and the other with 0.002% C, 0.001% Si, 0.104% Mn, 0.01% P. Then, the oxidation behavior was investigated from $650{\sim}900^{\circ}C$ in the air. The addition of antimony to the steels retarded the outward diffusion of elements during the oxidation, resulting in reduction of the oxidation rate.
Keywords
galvanized steels; antimony; oxidation; Pt-marker;
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