THERMODYNAMICS OF OXYGEN AND NITROGEN IN LIQUID FE 20MASS-PERCENT-CR ALLOY EQUILIBRATED WITH TITANIA-BASED SLAGS

被引：61
作者：
KISHI, M
INOUE, R
SUITO, H
机构：
[1] Tohoku University, Miyagi-ken, 980, Katahira, Aoba-ku, Sendai
[2] Institute for Advanced Materials Processing, Tohoku University, Miyagi-ken, 980, Katahira, Aoba-ku, Sendai
来源：
ISIJ INTERNATIONAL | 1994年 / 34卷 / 11期
关键词：
DENITROGENIZATION; FE-CR ALLOY; REDOX RATIO; ACTIVITY COEFFICIENT; TITANIUM OXIDE; CHROMIUM OXIDE;
D O I：
10.2355/isijinternational.34.859
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Equilibrium between CaO-Al2O3-TiOx or BaO-Al2O3-TiOx slags and a liquid Fe-20mass%Cr alloy with respect to oxygen and nitrogen was studied at 1873 K as a function of Ti (or Al) content in alloys, using an Al2O3 crucible. The Al-O and Ti-Al relations in liquid alloy were studied, and nitride capacity defined by C-N = (mass%N) . P-O2(3/4)/P-N2(1/2) was obtained from nitrogen distribution ratios, coupled with the analyzed oxygen content in liquid alloy or the P-O2 determined by Ti/TiO2 equilibrium. Based on these results, activity of Al2O3 and activity coefficients of TiO2, TiO1.5 and CrO1.5 were evaluated.
引用
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页码：859 / 867
页数：9
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