Abstract
Equilibrium between CaO-Al2O3-TiOx or BaO-AI2O3-TiOx slags and a liquid Fe-20mass%Cr alloy with respect to oxygen and nitrogen was studied at 1 873 K as a function of Ti (or Al) content in alloys, using an Al2O3 crucible. The AI-O and Ti-AI relations in liquid alloy were studied, and nitride capacity defined by [formula omitted] was obtained from nitrogen distribution ratios, coupled with the analyzed oxygen content in liquid alloy or the PO2 determined by Ti/TiO2 equilibrium. Based on these results, activity of Al2O3 and activity coefficients of TiO2, TiO1.5 and CrO1.5 were evaluated.
| Original language | English |
|---|---|
| Pages (from-to) | 859-867 |
| Number of pages | 9 |
| Journal | Isij International |
| Volume | 34 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 1994 |
| Externally published | Yes |
Keywords
- Fe-Cr alloy
- activity coefficient
- chromium oxide
- denitrogenization
- redox ratio
- titanium oxide
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry