2021 Nashville AISTech

Evolution of Non-Metallic Inclusions in Highly Alloyed Steels During Ladle Refining (Room 205 B)

30 Jun 21
11:00 AM - 11:30 AM

Tracks: Ladle & Secondary Refining: I

Speaker(s): Andrew Huck, Carnegie Mellon University; Bryan Webler, Professor, Carnegie Mellon University

Oxide, sulfide and nitride inclusions in steel, both unintended and by design, can significantly affect processing and properties. Thermodynamic models have been established that fit observed inclusion evolution in ladle refining for conventional steelmaking, but it is unknown if these models will transfer to higher alloy steels with additional elements and different processing steps. This work will focus on inclusion evolution in a martensitic heat-resistant steel (>10 elements added) that is processed via electric arc furnace, argon oxygen decarburization and electroslag remelting before being forged and compare these results to FactSage equilibrium and kinetic models.