발간논문

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Vol.36, No.7, 1055 ~ 1062, 1998
Title
Effect of Alloying Elements on the Tensile Strength of Sheet Steel for Hot Dip Coating
윤정봉 Jeong Bong Yoon , 장세기 Se Ky Chang
Abstract
The effect of alloying elements on the mechanical properties was investigated to develop the high strength sheet steel for hot dip coating. Silicon and manganese were known as the elements deteriorating the wettability of molten zinc by oxide film formed during annealing. Therefore, phosphorous and titanium were added as solid solution and precipitation hardening element, respectively. The increase of strength by 0.01% addition of alloying element was as follows : 10.3MPa by P. 22.6MPa by Ti+14.7MPa by Ti+Nb. 0.77 MPa by Mn and 7.7MPa by C. An addition of phosphorous and titanium resulted in providing high strength steels and reducing amount of manganese addition.
Key Words
High strength steel, Hot dip coating, Rephosphorous Ti-added. (Ti. Nb) (C. N). Precipitates
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