3％Si钢二次再结晶临界夹杂因子的统计计算

STATISTICAL EVALUATION OF CRITICAL INCLUSION FACTOR FOR SECONDARY RECRYSTALLIZATION IN 3％ Si STEEL

将经二次冷轧和脱碳退火的3％Si钢板在温度梯度炉内加热处理,用金相及宏观观察研究二次再结晶过程。根据弥散相(MnS)尺寸分布的电镜统计数据,计算出二次再结晶的临界夹杂因子数值为20mm^(-1),对晶粒长大的抑制能力作了准确描述。

On the basis of statistical data of MnS in the conventional 3%Sisteel sheets after various annealing processes, the critical inclusion factor has beenevaluated to be 20mm^(-1). The inhibition of MnS to grain growth has been moreexactly described.