Calcium and magnesium deoxidation in Fe-Ni and Fe-Cr alloys equilibrated with CaO-Al2O3 and CaO-Al2O3-MgO slags

被引：49
作者：
Ohta, H [1 ]
Suito, H [1 ]
机构：
[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, Sendai, Miyagi 9808577, Japan
来源：
ISIJ INTERNATIONAL | 2003年 / 43卷 / 09期
关键词：
Ca deoxidation; Mg deoxidation; interaction coefficient; iron-nickel alloy; iron-chromium alloy;
D O I：
10.2355/isijinternational.43.1293
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Calcium and magnesium deoxidation equilibria in Fe-20 to 60mass%Ni, Fe-10 to 40mass%Cr and Fe-18mass%Cr and 8 mass% Ni alloys saturated with CaO-Al2O3, and CaO-Al2O3-MgO slags have been studied at 1 873 K using CaO, Al2O3 and MgO crucibles. Based on these results, the interaction coefficients between Ca and O and between Mg and O are estimated for Fe-Ni, Fe-Cr and Fe-Ni-Cr alloys. The solubilities of CaO and MgO calculated by using these interaction coefficients are compared with the observed values. The phase stability regions in the Fe-40mass%Ni-Al-O-M and the Fe-20mass%Cr-Al-O-M (M=Ca and Mg) systems are presented at 1 873 K.
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页码：1293 / 1300
页数：8
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