| About this Abstract |
| Meeting |
Liquid Metal Processing & Casting Conference (LMPC 2022)
|
| Symposium
|
Liquid Metal Processing & Casting Conference (LMPC 2022)
|
| Presentation Title |
Kinetics of Oxygen Removal by Carbothermic Reduction from Steel Melts Under Vacuum Pressures |
| Author(s) |
Andrew (Drew) Huck, Bryan Webler, Stephano Piva |
| On-Site Speaker (Planned) |
Bryan Webler |
| Abstract Scope |
Oxide inclusions are often after vacuum processing, even in double vacuum process pathways such as vacuum induction melting (VIM) to vacuum arc remelting (VAR). This result is thermodynamically inconsistent, as these features should not be stable at the typical vacuum pressures utilized neat the melt surface. This suggests that there are some significant kinetic limits to oxygen and inclusion removal from the melt. This work will outline some of the relevant kinetics of various removal steps and with various assumptions, outline the ranges of impact on the speed of oxygen removal from the melt. Some specific topics that will be covered are nucleation of carbon monoxide bubbles, overall mass transfer of dissolved species and inclusions, the effects of various deoxidants, and dissolution or direct removal of inclusions from the melt. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |