Abstract
The interaction parameter between Cu and Al in molten iron containing high levels of Al was measured using a chemical equilibrium technique. A molten Fe-Al alloy was equilibrated with a molten Ag-Cu alloy in an Al2O3 crucible at 1 823 K. The activity coefficient of Cu in Fe-Al alloys was measured to be - 2.33 while varying the concentration of Al in a range from 0.04-0.2 mol%. The influence of Cu on the deoxidation equilibrium of Al and O was estimated using the above interaction parameter. The results indicate that under a constant Al concentration, a contamination of several percent of Cu raises the O concentration in high Al steel.
| Original language | English |
|---|---|
| Pages (from-to) | 625-629 |
| Number of pages | 5 |
| Journal | ISIJ International |
| Volume | 57 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2017 |
Keywords
- Activity coefficient
- Al
- Cu
- High Al steel
- Interaction parameter