借助扫描电镜和示踪法,利用金相学体积率法对BOF-LF-VD-CC流程生产的GCr15方坯连铸轴承钢和SS400板坯连铸中碳钢中非金属显微夹杂物的类型、特点、数量和分布进行了分析.结果表明,GCr15轴承钢显微夹杂体积分数为0.03%,SS400板坯显微夹杂体积分数为0.025%;0～5μm的夹杂占两种铸坯夹杂物的比例最大,决定了铸坯内弧至外弧夹杂物分布的特点.＞10μm的夹杂所占比例很小,在1%～4.5%.
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