Observation of calcium aluminate inclusions at interfaces between Ca-treated, Al-killed steels and slags

被引：61
作者：
Coletti, B [1 ]
Vantilt, S
Blanpain, B
Sridhar, S
机构：
[1] Katholieke Univ Leuven, Dept Met & Mat Engn, B-3001 Louvain, Belgium
[2] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA
[3] Ugine & ALZ, B-3600 Genk, Belgium
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2003年 / 34卷 / 05期
关键词：
D O I：
10.1007/s11663-003-0021-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The evolution of Al2O3-CaO inclusions on molten steel surfaces and at molten steel/slati interfaces was observed in-situ through a confocal scanning laser microscope (CSLM) equipped with a gold-image furnace. Depending on the slag chemistry, some of the initially liquid inclusions evolved into irregular Al2O3 or SiO2-enriched inclusions during the separation across the interface. Inclusions were found to Cluster at specific locations at the steel/slag interface. Unlike capillary-depression-driven Clustering, which is observed on molten steel surfaces, a weak repulsive force opposes fluid-flow-driven clustering at the steel/slag interface. After clustering, the irregular solid inclusions were observed to agglomerate to form large aggregates.
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收藏
页码：533 / 538
页数：6
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