Original scientific paper

Study on cleanliness of interstitial-free (IF) steel continuous casting slab

D. Han ; Key Laboratory of Metallurgy Engineering Liaoning Province, University of Science and Technology Liaoning, Anshan, Liaoning. Key Laboratory of Chemical Metallurgy Engineering Liaoning Province, University of Science and Technology Liaoning, Anshan, Liaoning, P. R China
X. Zhu ; State Key Laboratory of Marine Equipment Steel and its Applications, Anshan Iron and Steel Research Institute, AnGang Group, China
S. Li ; Key Laboratory of Metallurgy Engineering Liaoning Province, University of Science and Technology Liaoning, Anshan, Liaoning. Key Laboratory of Chemical Metallurgy Engineering Liaoning Province, University of Science and Technology Liaoning, Anshan, Liaoning, P. R China
X. Liao ; State Key Laboratory of Marine Equipment Steel and its Applications, Anshan Iron and Steel Research Institute, AnGang Group, China
X. Ai ; Key Laboratory of Metallurgy Engineering Liaoning Province, University of Science and Technology Liaoning, Anshan, Liaoning. Key Laboratory of Chemical Metallurgy Engineering Liaoning Province, University of Science and Technology Liaoning, Anshan, Liaoning, P. R China

Abstract

By means of metallographic observation, scanning electron microscopy and electron probe micro analysis, the quantity, particle size, distribution, morphology and composition of inclusions in the slab were discussed in detail. Which can provide a reference for the process optimization of IF steel and the production of pure steel slabs. The results show that the content of C, N and O in the IF steel continuous casting slab produced by this plant is controlled at about 20 ppm, and the content of P and S is lower and the steel is relatively pure. Most of the inclusions are below 2 μm. Most of the inclusions are pure Al₂O₃, a small part contains a small amount of microscopic MnS.

Keywords

IF steel; continuous casting microscopy inclusions; cleanliness

Hrčak ID:

246045

URI

https://hrcak.srce.hr/246045

Publication date:

4.1.2021.

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