Yunbae Kang
Pohang University of Science and Technology · Engineering
About the Lab
Professor Yunbae Kang's research lab specializes in computational thermodynamics and materials modeling, with a focus on oxide inclusions, slag-metallurgy interactions, and phase equilibria in complex multicomponent steelmaking systems. The lab employs advanced CALPHAD-based thermodynamic modeling and high-temperature experimental techniques to understand and control inclusions and precipitates in steels, particularly in relation to microstructure development and casting performance. Key research directions include the formation mechanisms of Mn-depleted zones, dissolution behavior of silica in slags, and the stability of complex oxides in ultra-low carbon steels.
Research Overview
Research Output Trend
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Selected Papers
15Inclusions chemistry of Mn/Si deoxidized steel was studied through both thermodynamic computation and experimental method. The computational thermodynamics has proved to provide a powerful tool for controlling inclusions and precipitates in steel. For Mn/Si deoxidized steels, important factors in determining the liquidus temperature and primary phase of the inclusions are MnO/SiO2 ratio and Al2O3 content in inclusions. Provided that no further interaction with steel matrix during cooling, inclus
The dissolution of amorphous SiO 2 particles in CaO – Al 2 O 3 – SiO 2 slags was investigated at 1450°C by high‐temperature confocal scanning laser microscopy ( HT ‐ CSLM ) and thermodynamic/kinetic analyses. The SiO 2 particles used in this experimental study had a spherical form so that any rotation of the particle did not cause errors in the determination of the particle size during the dissolution. Moreover, a wide composition range of the slag could be chosen without forming any solid react
A series of thermodynamic analyses have been performed to elucidate possible mechanism of Mn-depleted zone (MDZ) development near Ti oxide inclusions as nucleation sites of Intragranular Acicular Ferrite (IGF) transformation in steels, using a computational thermodynamic approach (CALPHAD). It is demonstrated that thermodynamic calculations are able to reproduce experimentally known inclusions evolution in the steels. The MDZ development near the Ti2O3 inclusions is shown to be a result of Mn ab
Research Areas
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