- Mechanical Behavior of Materials
- Microstructure and Process Design of Structural Materials
- Electrically-Assisted Forming and Electroplasticity

1995 – 1996 Postdoctoral Researcher, Research Center for Thin Film Fabrication and Crystal Growing of Advanced Materials, Seoul National University, Korea
1996 – 1997 Postdoctoral Researcher, Department of Materials, University of Oxford, UK
1997 – 2002 Researcher, Technical Research Laboratories, POSCO, Korea
2003 – 2004 Senior Researcher, Korea Institute of Machinery & Materials (KIMM), Korea
2004 – present Professor, Department of Materials Science and Engineering, Seoul National University, Korea
2008 – 2009 Visiting Professor, Department of Materials Science and Engineering, Carnegie Mellon University, USA
2019 – present Director, Steel Research Center, Research Institute of Advanced Materials (RIAM), Seoul National University, Korea
2016 – present Director, Innovative Process Design Center for Strategic Structural Materials, Seoul National University (ERC), Korea

2014 Yoon Dong-Suk Award, The Korean Institute of Metals and Materials
2016 Henry Marion Howe Medal, ASM international
2017 Suk-Cheon Academic Award, The Korean Institute of Metals and Materials