| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Effect of pass rolling reduction on martensite variant, texture, and mechanical properties of hot-rolled Nb-V low carbon Steel |
| Author(s) |
Murugesh kumar Ramar, Sadhan Ghosh |
| On-Site Speaker (Planned) |
Murugesh kumar Ramar |
| Abstract Scope |
The impact of step rolling reduction (20% and 40%, with 10% intervals) on non-recrystallization temperature is studied to understand specific variant selection during martensite transformation and its effects on parent austenite grain (PAG), texture, and mechanical properties. Findings show that increased rolling strain activates the secondary slip plane {-111}, which in turn affects the variant selection within the grain. Higher rolling reduction changes the texture from (111)[1-10] to (332)[-1-13], significantly enhancing the mechanical properties. Mean PAG size increases at 40% rolling reduction, affecting the packet and block sizes. Increased strain improves yield strength and ultimate tensile strength by 27.9% and 19.32%, respectively, but reduces elongation by 1.625%. It is observed that the strengthening effect is primarily attributed to dislocation and grain boundary strengthening. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Phase Transformations, Characterization, Iron and Steel |