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

被引：66

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.

引用

页码：533 / 538

页数：6

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