About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
New Frontiers in Physical Metallurgy of Steels
|
| Presentation Title |
Synergistic Effects of Cold Rolling and Quenching on the Microstructure and Mechanical Performance of Interstitial Free (IF) Steel |
| Author(s) |
Sandeep Yadav, Sadhan Ghosh |
| On-Site Speaker (Planned) |
Sandeep Yadav |
| Abstract Scope |
While exhibiting exceptional ductility, interstitial-free (IF) steel presents an opportunity for strength improvement. The soft nature of the fully ferritic structure is attributed to the allotriomorphic ferrite formed during austenite-to-ferrite transformation. The present research objective explores the impact of recrystallization heat treatment on the mechanical properties of cold-worked interstitial-free (IF) steel. The samples were cold-rolled to 40% and 80% reductions, followed by austenitization at 925°C. Rapid quenching effectively curtailed grain coarsening by restricting grain-boundary migration during cooling, resulting in fine recrystallized grains. Fine grains enabled massive ferrite nucleation/growth, while rapid quenching produced dislocation-dense sub-cell structures, boosting strength without compromising ductility. These results demonstrate cold working and rapid quenching critically refine IF steel’s microstructure, offering a practical approach to enhance mechanical properties industrially. |