Influence of titanium and zirconium comlex deoxidation on the inclusions and microstructure of steel

Abstract

Abstract: In this experiment，the titanium and zirconium were added to the steel，alone or composite addition. The morphology, composition and the size of inclusions was observed. The results showed that we could got a smaller size and a larger number of inclusion particles when titanium and zirconium were added. Inclusions mainly contained TixOy, Al2O3 and MnS when the titanium compound was added. And when added the zirconium, the inclusions mainly contained ZrxOy，SiO2，Al2O3，MnS. Added the titanium zirconium compound to steel could form the complex inclusions of ZrxOy, TixOy, SiO2, Al2O3, MnS. Tragranular acicular ferrite was formed when titanium zirconium compound added.

Key words: steelmaking, acicular ferrite, inclusions, deoxy

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Influence of titanium and zirconium comlex deoxidation on the inclusions and microstructure of steel

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