By means of analysising the chemic component, optical structure and the SEM and measuring the microhardness, the samples with the crack in the hardface layer of continuous caster roller were studied.

• 采用化学成分、金相组织和扫描电镜断口分析及显微硬度测定等手段对连铸辊表面堆焊层开裂部位进行了取样分析。