In-situ observation of dynamic interfacial phenomena between CaO-(SiO2 or Al2O3) slag and Fe-11%Cr alloy near the MgO-6%C refractory at 1823 K

被引：5

作者：

Shin, Minsoo ^{[1
]}

Cho, Seungyoun ^{[1
]}

Lee, Joonho ^{[1
]}

Park, Joo-Hyun ^{[2
]}

机构：

[1] Korea Univ, Dept Mat Sci & Engn, Seoul 136713, South Korea

[2] Univ Ulsan, Sch Mat Sci & Engn, Ulsan 680749, South Korea

来源：

METALS AND MATERIALS INTERNATIONAL | 2010年 / 16卷 / 03期

关键词：

oxides; purification; wetting; image analysis; dynamic interfacial phenomena; LOCAL CORROSION; STEEL; IRON; TENSION; SURFACE;

D O I：

10.1007/s12540-010-0623-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigated dynamic interfacial phenomena at the slag-metal-refractory three-phase interface using a high temperature X-ray radiographic technique. Dynamic movement of the metal-slag line between Fe-11%Cr alloy and CaO-(SiO2 or Al2O3) slag was observed near the MgO-6%C refractory at 1823 K. We observed corresponding local corrosion of the refractory with CaO-SiO2 slag but it was negligible with CaO-Al2O3 slag. From a thermodynamic perspective, the Marangoni convection at the slag-metal-refractory interface is not the dominant factor determining the corrosion rate of the MgO-C refractory. Rather, it is the large solubility limit and the mass transfer in the slag phase.

引用

页码：495 / 499

页数：5

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