- 著者
- Hiroshi G. KATAYAMA Ting TSAO Naoshi MATSUSHIMA
- 出版者
- The Iron and Steel Institute of Japan
- 雑誌
- Transactions of the Iron and Steel Institute of Japan (ISSN:00211583)
- 巻号頁・発行日
- vol.28, no.3, pp.186-191, 1988 (Released:2006-09-08)
- 参考文献数
- 20
- 被引用文献数
- 4 3 10
Experiments were done on the distribution of each element between liquid Fe-Cr alloys and CaO-MgO-Al2O3-SiO2 slags having the compositions near the CaO-Al2O3 binary system in a magnesia crucible at temperatures of 1575, 1600 and 1650°C. The distribution ratios of chromium and sulphur, the oxygen content of liquid alloy and the activity coefficient of CrO in slag were expressed as functions of temperature and compositions of liquid alloy and slag. The major equations derived are as follows. log (wt%O)=0.413 log NCrO+0.0065 [wt%Cr] -0.091 ∑Ki•Ni-13044/T+5.574 log (wt%Cr)/[wt%Cr]=2.04 log [wt%O] -0.048 [wt%Cr]+0.292 ∑Ki•Ni+26 805/T-10.487 log γCrO=-0.561 log NCrO-0.096∑Ki•Ni -3044/T+1.528 log (wt%S)/[wt%S]=-0.47 log NCrO+0.0087 [wt%Cr] +2.835 ∑Ki•Ni+6902/T-4.28 where, ∑Ki•Ni=NCaO+0.1NMgO-0.8NAl2O3-NSiO2