Deoxidation Equilibria of Manganese, Silicon, and Aluminum in Iron-Nickel-Chromium Melts

被引：0

作者：

Viktor Dashevskii

Aleksandr Aleksandrov

Akim Kanevskii

Leopold Leont’ev

机构：

[1] Baikov Institute of Metallurgy and Materials Science,

[2] Russian Academy of Sciences (IMET RAS),undefined

来源：

Metallurgical and Materials Transactions B | 2016年 / 47卷

关键词：

Oxygen Concentration; Interaction Parameter; Aluminum Content; Silicon Content; Chromium Oxide;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Oxygen solution in Fe-Ni-Cr melts containing manganese, silicon, and aluminum has been thermodynamically analyzed and experimentally studied at 1873 K (1600 °C). The Fe-10 pctNi-20 pctCr and Fe-40 pctNi-15 pctCr compositions were studied as examples of the most frequently used alloys. Manganese is not a deoxidizer in these alloys, since manganese and chromium have similar affinities for oxygen. At low contents, silicon is also not a deoxidizer. However, above 0.358 pct for the Fe-10 pctNi-20 pctCr alloy and 0.261 pct for the Fe-40 pctNi-15 pctCr alloy, silicon decreases the oxygen concentration in the melts. Aluminum is an effective deoxidizer in the Fe-Ni-Cr melts. It decreases the oxygen concentration when its content is higher than 2.914 × 10−4 pct in the Fe-10 pctNi-20 pctCr alloy and 2.109 × 10−3 pct in the Fe-40 pctNi-15 pctCr alloy. Minimum oxygen concentrations are observed at aluminum contents of about 0.24 pct in the Fe-10 pctNi-20 pctCr alloy and at about 0.23 pct in the Fe-40 pctNi-15 pctCr alloy. The combined deoxidation of Fe-10 pctNi-20 pctCr and Fe-40 pctNi-15 pctCr alloys with silicon and manganese and also with aluminum and silicon was studied. The lower oxygen concentrations were reached as a result of complex deoxidation in comparison with the cases when deoxidized separately by each element at the same concentration levels.

引用

页码：1839 / 1850

页数：11

共 50 条

[1] Deoxidation Equilibria of Manganese, Silicon, and Aluminum in Iron-Nickel-Chromium Melts
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METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2016, 47 (03): : 1839 - 1850
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