Residual MgO-CaO brick after being used in AOD furnace was determined by OM,SEM and EDAX.

• 采用光学显微镜(OM)、扫描电镜(SEM)和能谱仪(EDAX)对AOD炉用镁钙砖的残砖进行了分析,探讨了炉衬镁钙砖的侵蚀机理。