About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
High Performance Steels
|
| Presentation Title |
Microstructural Strategy of Improving Resistance to Hydrogen Embrittlement in Hot-Rolled TRIP-Assisted Steels |
| Author(s) |
Hung-Wei Yen |
| On-Site Speaker (Planned) |
Hung-Wei Yen |
| Abstract Scope |
The transformation-induced plasticity (TRIP) effect is desirable for achieving a high strain hardening rate and an excellent strength–ductility balance. However, it often increases the susceptibility of steel to hydrogen embrittlement. In this study, we present a microstructural strategy to enhance resistance to hydrogen embrittlement in hot-rolled TRIP-assisted steels. Our findings show that granular bainite shows lower susceptibility to hydrogen-enhanced local plasticity compared to ferrite. Moreover, the rolling texture effectively alters the direction of crack propagation. These two microstructural features is created by a novel hot-rolled process. With this process, we develop a 1 GPa-grade TRIP-assisted steel that demonstrates exceptional resistance to hydrogen embrittlement, even under conditions of elevated hydrogen uptake. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Mechanical Properties, Characterization |