| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Advances in Ferrous Metallurgy
|
| Presentation Title |
Localized Carbon Pickup Defect in Ultra-low Carbon Interstitial Free Steel |
| Author(s) |
Malavikha Rajivmoorthy, William King |
| On-Site Speaker (Planned) |
Malavikha Rajivmoorthy |
| Abstract Scope |
Owing to its excellent formability and deep drawability, single and dual stabilized interstitial free steel is widely used in the automotive industry. However, carbon still present in the steel in an interstitial form could affect its drawability and is therefore undesirable. The goal of the present study is to determine the mechanism and source of localized carbon pickup on the formation of microstructure and mechanical behavior of interstitial free ultralow carbon steels along the different stages of processing – casting, hot rolling, cold rolling, and annealing. Many sources of carbon pickup during/after the casting stage are considered, ranging from grease on the cast slab, to exposure from mold powder and the submerged entry nozzle. A thermodynamic model for carbon pickup from the casting and effects downstream the annealing stage is developed and validated through experimental lab trials and characterization. Mechanisms ascribed to carbon pickup in the caster are delineated. |