About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Microstructure and Carbide Evolution in Rapid Thermal Processing of Steels |
| Author(s) |
David Starr, Thomas John Balk |
| On-Site Speaker (Planned) |
David Starr |
| Abstract Scope |
Rapid thermal processing (RTP) steel takes advantage of short soak times and non-equilibrium heating rates to produce mechanical properties comparable to a quench and temper process. The benefits of RTP over a quench and temper process are decreased costs and increased production. Carbon dissolution and diffusion are inhibited with the fast heating rates and short soak times. This heterogeneous carbon concentration leads to martensite and bainite during quench. Implementation of RTP is challenged by processing parameters such as starting microstructure, heating/cooling rates, peak temperature, and soak times which affect the final microstructure. Soak times were varied to determine the effect of duration at temperatures above the Ac3. A Gleeble 3500 was used for thermo-mechanical processing. Dilatometry was used to monitor phase evolution during processing. SEM and EDS were used to investigate microstructure and carbides, pre- and post-processing. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Phase Transformations, Characterization, Iron and Steel |