| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Advances in Ferrous Metallurgy
|
| Presentation Title |
Modelling of Accelerated Runout Table Cooling of Thicker Gauge Steel Products |
| Author(s) |
Shixin Zhou, Ali Doustahadi, Vladan Prodanovic, Matthias Militzer |
| On-Site Speaker (Planned) |
Ali Doustahadi |
| Abstract Scope |
Accelerated cooling on the run-out table has become a key technology to manufacture TMCP steels, both hot rolled plates and strips. The application of power cooling units with increased heat extraction capacities enables efficient production of advanced high-performance steels with reduced alloying levels. Here, a challenge for thicker gauge products are resulting microstructure through-thickness gradients. Systematic pilot-scale simulations of ROT cooling have been conducted with the goal to develop a mechanistic heat transfer model that can be combined with austenite decomposition models.
Heat transfer models accounting for the role of process parameters were built based on representative boiling curves obtained from systematic power unit cooling experiments with moving plates. An austenite decomposition model which accounts for the latent heat of phase transformation was coupled with the heat transfer model to predict the effect of plate thickness on the through-thickness final ferrite grain size for selected low carbon steels. |