| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Steels in Extreme Environments
|
| Presentation Title |
Effect of microalloying on the hydrogen embrittlement in press hardened steel |
| Author(s) |
Seokhwan Ju, Seawoong Lee, Dong-Woo Suh |
| On-Site Speaker (Planned) |
Dong-Woo Suh |
| Abstract Scope |
Utilizing ultra-high strength steels, such as press hardened steel (PHS), is increasingly prevalent in manufacturing automotive parts to enhance passenger safety. For the successful application of ultra-high strength PHS, several issues must be addressed; one of them is hydrogen embrittlement. The degradation of mechanical properties, particularly ductility and toughness, due to the presence of hydrogen, has been recognized as a major concern in ultra-high strength steels and must be mitigated to ensure structural reliability. Since some hydrogen uptake during service is inevitable, it is crucial to neutralize the absorbed hydrogen to suppress hydrogen embrittlement. In this study, we examined the detailed role of the microalloying element, Nb, on hydrogen behavior in press hardened steel. The influences of this microalloying element were quantitatively investigated in terms of hydrogen uptake, diffusion, and trapping. The corresponding mechanical responses were discussed from that perspective. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Mechanical Properties, Environmental Effects |