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应用放射性强度计数法和自射线照相法,测定了铝硅共晶合金熔体中不同部位的铈含量及其在微观组织中的分布。结果表明,铈的分布存在着宏观及微观偏析,并随铈含量增加而加剧。
The content of cerium in different parts of Al-Si eutectic alloy melt and its distribution in microstructure were measured by radioactive intensity counting and self-radiography. The results show that the distribution of cerium exists macroscopic and microsegregation, which aggravates with the increase of cerium content.