| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Grain Boundaries, Interfaces, and Surfaces: Fundamental Structure-Property-Performance Relationships
|
| Presentation Title |
E-4: Role of Cerium on Intricacies of Deformed State and Softening Kinetics of Low Carbon Steels |
| Author(s) |
Chetan Kadgaye |
| On-Site Speaker (Planned) |
Chetan Kadgaye |
| Abstract Scope |
An attempt has been made in the present investigation to study the softening kinetics of two Ce-modified steels after 60% cold rolling and subcritical annealing at 600 ℃ for 2-16 h. After cold rolling, the strain accumulation in the ferrite matrix was severe for LCe steel (0.03 wt.% Ce) compared to the HCe steel (0.6 wt.% Ce). Both samples achieved partial recovery and recrystallization even after 16 h of annealing. During the early stage of annealing, the nucleation of the strain-free grains was envisaged in LCe steel due to the availability of the preferential nucleation sites, i.e., grain and interphase boundaries. Later, the recrystallization kinetics got delayed owing to the pinning effect exerted by the fine CeO2 and Fe3C particles. In HCe samples, the early stage of ferrite nucleation is hampered due to the grain boundary segregation of Ce. |