About Lab.
SEOL is a research group at the Graduate Institute of Ferrous & Eco Materials Technology (GIFT), POSTECH. We investigate how processing controls microstructure and how microstructure determines the performance of steels and alloys. Our work combines atom probe tomography, electron microscopy, diffraction techniques, and machine learning to understand material behavior and guide alloy and process design. Current research covers microstructure analysis, aerospace and defense materials, metal additive manufacturing, and AI-assisted materials analysis. We aim to develop durable, sustainable materials by connecting atomic-scale characterization with quantitative analysis and predictive modeling.
- a. Mechanically derived short-range order and its impact on the multi-principal-element alloys : Nature Communications, 13 (2022), Article 6766, Jae Bok Seol, Won-Seok Ko, Seok Su Sohn, Min Young Na, Hye Jung Chang, Yoon-Uk Heo, Jung Gi Kim, Hyokyung Sung, Zhiming Li, Elena Pereloma, Hyoung Seop Kim.
- b. Nanometer-Scale Phase Transformation Determines Threshold and Memory Switching Mechanism : Advanced Materials, 29 (2017), Article 1701752, Byeong-Gyu Chae, Jae-Bok Seol, Jeong-Hwan Song, Kyungjoon Baek, Sang-Ho Oh, Hyunsang Hwang, Chan-Gyung Park. : Acta Materialia, 151 (2018), 366-376, Jae Bok Seol, Jae Wung Bae, Zhiming Li, Jong Chan Han, Jung Gi Kim, Dierk Raabe, Hyoung Seop Kim.
- c. Boron Doped Ultrastrong and Ductile High-Entropy Alloys : Acta Materialia, 151 (2018), 366-376, Jae Bok Seol, Jae Wung Bae, Zhiming Li, Jong Chan Han, Jung Gi Kim, Dierk Raabe, Hyoung Seop Kim.
- d. A Feasible Route to Produce 1.1 GPa Ferritic-Based Low-Mn Lightweight Steels with Ductility of 47% : Journal of Materials Science & Technology, 117 (2022), 225-237, Kwang Kyu Ko, Hyo Ju Bae, Eun Hye Park, Hyeon- Uk Jeong, Hyoung Seok Park, Jae Seok Jeong, Jung Gi Kim, Hyokyung Sung, Nokeun Park, Jae Bok Seol.
- e. Short-Range Order Strengthening in Boron-Doped High-Entropy Alloys for Cryogenic Applications : Acta Materialia, 194 (2020), 366-377, Jae Bok Seol, Jae Wung Bae, Jung Gi Kim, Hyokyung Sung, Zhiming Li, Hyun Hwi Lee, Sang Hun Shim, Jae Hoon Jang, Won-Seok Ko, Sun Ig Hong, Hyoung Seop Kim.
About Prof.
Profile
- 2026.09 – Present Professor (Head of SEOL), Graduate Institute of Ferrous & Eco Materials Technology (GIFT), POSTECH
- 2024 – 2026.08 Associate Professor (Head of ADAML), School of Materials Science & Engineering, Kookmin University
- 2020 – 2024 Associate Professor, Department of Materials Engineering and Convergence Technology, Gyeongsang National University
- 2015 – 2020Research Professor, National Institute for Nanomaterials Technology (NINT), POSTECH
- 2013 – 2015 Senior Engineer, Samsung Display R&D Center
- 2011 – 2013 Postdoctoral Fellow, Max Planck Institute for Iron Research, Düsseldorf, Germany
Education
- 2007 – 2011 Ph.D. in Materials Science and Engineering, POSTECH
- 2004 – 2006 M.S. in Materials Science and Engineering, POSTECH
- 1997 – 2004 B.S. in Materials Science and Engineering, Korea University
Major Research Areas
- Hydrogen-Defect Interactions
- Ni-based Superalloys
- Grain Boundary Segregation