Comparison study of slag corrosion resistance of MgO-MgAl2O4, MgO-CaO and MgO-C refractories under electromagnetic field

被引：72

作者：

Ren, Xin-ming ^{[1
]}

Ma, Bei-yue ^{[1
,2
]}

Li, Shi-ming ^{[1
]}

Li, Hong-xia ^{[2
]}

Liu, Guo-qi ^{[2
]}

Yang, Wen-gang ^{[2
]}

Qian, Fan ^{[2
]}

Zhao, Shi-xian ^{[2
]}

Yu, Jing-kun ^{[1
]}

机构：

[1] Northeastern Univ, Sch Met, Minist Educ, Key Lab Ecol Met Multimetall Mineral, Shenyang 110819, Liaoning, Peoples R China

[2] Sinosteel Luoyang Inst Refractories Res Co Ltd, State Key Lab Adv Refractories, Luoyang 471039, Henan, Peoples R China

来源：

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL | 2021年 / 28卷 / 01期

基金：

中国国家自然科学基金;

关键词：

MgO-based refractory; Corrosion; Basic slag; Electromagnetic field; THERMAL-SHOCK BEHAVIOR; LIQUID; IRON; COMPOSITE; MECHANISM; OXIDE;

D O I：

10.1007/s42243-020-00421-0

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

To illuminate the corrosion behavior of MgO-based refractories under electromagnetic field (EMF), herein, the slag corrosion and penetration resistance of MgO-MgAl2O4, MgO-CaO, and MgO-C refractories were investigated using the rotary immersion slag resistance test at 1873 K for 1 h. The results showed that the order of the good slag resistance of as-tested refractories was MgO-C > MgO-CaO > MgO-MgAl2O4. The EMF accelerated the corrosion and penetration of slag to the refractories, which caused the molten slag to be easier into the refractories by natural convection and Marangoni effect. In addition, the MgO-C refractories did not show an overwhelming advantage in slag resistance because EMF impeded the formation of the dense protection layer. Consequently, in view of the present results, the MgO-C refractories are still the most promising slag line material for refining furnace among MgO-MgAl2O4, MgO-CaO, and MgO-C refractories.

引用

页码：38 / 45

页数：8

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