| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Overview of the Non-isothermal Recrystallization in Cold-rolled Low-carbon Steels during Low-rate Annealing |
| Author(s) |
Ivon Alanis-Fuerte, Octavio Vázquez-Gómez, Pedro Garnica-González, Edgar López-Martínez, Héctor Javier Vergara-Hernández |
| On-Site Speaker (Planned) |
Ivon Alanis-Fuerte |
| Abstract Scope |
The non-isothermal recrystallization kinetics of two cold-rolled low-carbon steels, one alloyed and the other unalloyed, were analyzed by optical and scanning electron microscopy to characterize the microstructure. The grade of recrystallization was determined as a function of the heating rate and Vickers microhardness measurements at different annealing temperatures, established below the critical austenite formation temperature start. From the annealing conditions, the start and end of recrystallization were determined in a range between 500-700 °C. The results do not show a significant effect of the low-heating rate on the recrystallization kinetics, however, microstructural changes are evidenced with respect to the composition. Alloy steel shows a spheroidized cementite due to the fracture of previously cold-rolled pearlite, while unalloyed steel shows deformed pearlite grains without spheroidization compared to the same annealing temperature. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Phase Transformations, Iron and Steel, Characterization |