Automotive Steels

1. Ultra high-strength steels design

2. Lightweight steels design

We design novel automotive steels based on Fe-Mn-Al-C system in order to obtain excellent a combination of strength-ductility.

Main strategies are to investigate nano- & micron-scale phase transformation & precipitation behaviors and to correlate them with mechanical properties.

We are focusing on the development of medium- and high-Mn steels and lightweight steels.

3. Hot-press forming steel design

We study ultra high-strength martensitic steels, Hot Press Forming (HPF) steels, used for the structural pillar parts in the automotive body.

Our interests are to control micro-alloying elements for precipitation & grain refinement and to investigate tensile, bending, impact, and delayed fracture properties.

*Key Publications

1. Ultra high-strength steels


(1) High-Mn

Acta Mater. (2018)     
Mater. Sci. Eng. A (2018)
Mater. Sci. Eng. A (2018)

(2) Medium-Mn

Acta Mater. (2018)    
Scientific Reports (2017)

2. Lightweight steels

Acta Mater. (2017)   
Scientific Reports (2017)
Acta Mater. (2015)   
Acta Mater. (2014)   
Acta Mater. (2013)   
Acta Mater. (2013)   

for Extreme Environments

145 Anam-ro, Seongbuk-gu, Seoul 02841, South Korea.