About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
2026 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-3: Effect of Flux Chemistry on the Dephosphorization Behavior of Stainless Steel Melt |
| Author(s) |
Sumin Hwang, Eunju Jeong, Joo Hyun Park |
| On-Site Speaker (Planned) |
Sumin Hwang |
| Abstract Scope |
For cost-effective stainless steel (STS) production, a high scrap charge ratio combined with the extensive use of obsolete scrap and pig iron results in an increased phosphorus content in molten steel, thereby degrading the mechanical and chemical properties. In the present study, dephosphorization experiments were conducted on the STS304 melts using the CaO-FeO-CaF2(-Na2O or Li2O) fluxes at 1773 K to obtain an effective degree of dephosphorization (ηP). At the constant carbon content in steel melt, the ηP reached a maximum of 10% at CaF2/(CaF2+FeO) values of 0.6(±0.1) under CaO saturation conditions. For the flux system with a CaF2/(CaF2+FeO)=0.5, the addition of alkaline oxide such as Li2O or Na2O improved ηP to about 14%; however, Li2O was more effective than Na2O at the same addition level potentially due to the higher evaporation loss of Na2O than Li2O. |
| Proceedings Inclusion? |
Undecided |