Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
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The Effect of Sb Addition on the High Temperature Oxidation in the Steels

강중 Sb 첨가가 고온산화에 미치는 영향

  • 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)
  • 오인석 (충남대학교 신소재공학부) ;
  • 조규찬 (충남대학교 신소재공학부) ;
  • 김동현 (충남대학교 신소재공학부) ;
  • 김길무 (충남대학교 신소재공학부) ;
  • 손일령 (포스코 기술연구소-자동차소재 연구그룹)
  • Received : 2008.09.28
  • Published : 2009.04.25
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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

Acknowledgement

Supported by : 포스코

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