Corrosion Mechanism of MgO-CaO Brick for AOD Furnace  

作　　者：WANG Jiandong GE Changchun SHEN Weiping 

机构地区：[1]School of Material Science and Engineering, USTB, Beijing 100083 China [2]Yingkou Qinghua Refractory Material Limited

出　　处：《China's Refractories》2006年第3期13-16,共4页中国耐火材料（英文版）

摘　　要：Residual MgO-CaO brick after being used in AOD furnace was determined by OM, SEM and EDAX. Corrosion mechanism of MgO-CaO brick as furnace lining was studied. Results show that： The corrosion of MgO- CaO brick is mainly attributed to the solution and infiltration of silicate liquid phase. Transverse cracks between reacted zone and original zone are parallel to the working face, which is an important factor for deteriorating the corrosion of MgO-CaO bricks.Residual MgO-CaO brick after being used in AOD furnace was determined by OM, SEM and EDAX. Corrosion mechanism of MgO-CaO brick as furnace lining was studied. Results show that： The corrosion of MgO- CaO brick is mainly attributed to the solution and infiltration of silicate liquid phase. Transverse cracks between reacted zone and original zone are parallel to the working face, which is an important factor for deteriorating the corrosion of MgO-CaO bricks.

关 键 词：Refining furnace Magnesia-Calcia brick MICROSTRUCTURE Corrosion mechanism 

分 类 号：TF065.1[冶金工程—冶金物理化学]