Youn‐Bae Kang
포항공과대학교 기계공학과 · 공학
이 교수의 연구실은 철강 소재의 첨단 제조 공정과 품질 제어를 위한 열역학적 분석 및 모델링을 중심으로, 산화물 인클루전, 고체 상 변화, 슬래그 반응 메커니즘 등을 연구하고 있습니다. 특히 Mn/Si 탈산 처리 철강에서의 인클루전 제어, Ti 산화물 기반의 내재성 핵형성 등 미세구조 제어를 위한 열역학적 기반 설계에 중점을 두고 있습니다. CALPHAD 기반의 열역학 최적화 및 고온 이미징 기법을 융합한 다학제적 연구가 특징입니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
Inclusions 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
