Abstract
The activity coefficient of silicon in the molten Fe-C-B-Si alloy was determined by conducting the following measurements: 1) Equilibrium contents of boron in the Fe-B-Si-N alloys saturated with solid BN under Ar+N2 gas mixture at 1 723 K, 2) Solubility of carbon in the molten Fe-C-B-Si alloy at 1 573 and 1 723 K, and 3) Equilibrium distribution of silicon between the molten Fe-C-B-Si alloy and molten silver at 1 723 K. By using the interstitial solution model, the activity coefficient and the interaction parameters of silicon in the Fe-C-B-Si alloy were determined to be: θSi/B = 7.54 (ysi<0.15, 1 723K), InψO/Si=-8.7, θSi/Si=18.4 (ySi<0.2, 1 723 K), θSi/C=297 000/T-2.63 (ysi<0.4, 1 573-1 873 K).
| Original language | English |
|---|---|
| Pages (from-to) | 1151-1156 |
| Number of pages | 6 |
| Journal | Isij International |
| Volume | 36 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 1996 |
| Externally published | Yes |
Keywords
- Activity coefficient
- Fe-B-Si-N alloy
- Fe-C-B-Si alloy
- Interaction parameter
- Interstitial solution model
- Solubility
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry