Observation of crystal nuclei of aluminum refined by Al-Ti-B master alloy
来源期刊：中国有色金属学报(英文版)1999年第4期
论文作者：马洪涛 方鸿生 张柏清 李建国
文章页码：668 - 671
Key words：aluminum; heterogeneous nucleation; refining mechanism
Abstract: The crystal heterogeneous nuclei of high purity aluminum refined by Al-Ti-B master alloy were studied by SEM and the mechanism of heterogeneous nucleation was discussed. It was found that the cluster of TiB2 particles was in the center of grains, and a number of small protrusions were found on the surface of the particles. It was also found that the cluster was surrounded with the dendrites or circles enriched in Ti.
