About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
High Performance Steels
|
| Presentation Title |
Evaluation of Dynamic Recrystallization Behavior and Dislocation Density of 1.6 wt. % High Carbon Steel During Hot Deformation |
| Author(s) |
JaeYeol Jeon, Jun-Hee Han, Dae-Geun Kim |
| On-Site Speaker (Planned) |
Dae-Geun Kim |
| Abstract Scope |
Dynamic recrystallization(DRX) behavior and dislocation density were evaluated through EBSD and X-ray to investigate the hot deformation behavior of a high-carbon steel. Specimens were heated to initial heating temperatures(IHT) of 1200℃ or 1100℃ followed by hot compression tests(HCT). DRX fractions(f<sub>DRX</sub>) calculated through EBSD are less than 50% at the IHT of 1200℃ for HCT temperatures of 1100℃ or 800℃. However, f<sub>DRX</sub>s are higher than 50% and increase with increasing HCT temperatures at the IHT of 1100℃. Dislocation densities(ρ) were derived using the modified Williamson-Hall/Warren-Averbach(mWH/WA) resulting in higher ρ at the IHT of 1200℃ for HCT temperatures of 1100℃ or 800℃ compared to 1000℃ and 900℃. However, dislocation densities decrease with increasing HCT temperatures at the IHT of 1100℃. Dislocation densities calculated by X-ray correspond well with DRX behaviors observed through EBSD. Hence, DRX behaviors of a 1.6wt% high-carbon steel are well developed at the IHT of 1100℃ compared to 1200℃. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Iron and Steel, Process Technology |