About this Abstract |
Meeting |
TMS Specialty Congress 2025
|
Symposium
|
8th World Congress on Integrated Computational Materials Engineering (ICME 2025)
|
Presentation Title |
Cerium's Effect on the Mechanical Characteristics and Transformation Kinetics of Low Carbon Steels |
Author(s) |
Chetan Kadgaye |
On-Site Speaker (Planned) |
Chetan Kadgaye |
Abstract Scope |
This study examines the detailed dilatometric and electron microscopic analysis of austenite formation and its subsequent decomposition in two cerium (Ce)-modified steels containing 0.6 and 0.03 wt% Ce. In the high-Ce
steel (0.6 wt% Ce), austenite forms rapidly during heating, despite a prolonged incubation period. In contrast, the low-Ce steel (0.03 wt% Ce) promotes early austenite nucleation but exhibits a significant delay in completing the
transformation. A similar pattern is observed during austenite decomposition upon cooling, where the low-Ce steel initiates the transformation early but with slower kinetics. The influence of Ce on the overall austenite transformation
kinetics during the heating–cooling cycle is discussed from both a thermodynamic perspective and nucleation probability. Engineering stress–strain curves indicate that the low-Ce steel offers a better balance of strength and ductility
compared to the high-Ce steel. |
Proceedings Inclusion? |
Undecided |