What question did this study set out to answer?

To examine the formation, morphology, and removal behavior of non-metallic inclusions during steel deoxidation using in situ generated magnesium vapor.

January 1, 2007ISIJ InternationalOpen Access

Behavior of Inclusions in Deoxidation Process of Molten Steel with in Situ Produced Mg Vapor

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Authors

JYJian YangShanghai University TYTatsuhito Yamasaki MKMamoru KuwabaraShougang Institute of Technology

Discussion

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Implication

Experimental investigation shows sustained deoxidation and fine inclusion dispersion in molten steel via in situ magnesium vapor, suggesting enhanced steel cleanness and grain refinement.

Key Points

To examine the formation, morphology, and removal behavior of non-metallic inclusions during steel deoxidation using in situ generated magnesium vapor.
Generated magnesium vapor in situ via the aluminothermic reduction of magnesium oxide in molten steel.
Compared inclusion characteristics and deoxidation kinetics using porous MgO immersion tubes versus dense Al2O3 immersion tubes under varying gas flow rates and pellet charging sequences.
Generated inclusions were predominantly fine, spherical, and resistant to clustering, exhibiting decreasing MgO content and increasing SiO2 content over time.
Rising carrier gas bubbles selectively floated out larger inclusions to purify the melt, while fine inclusions remained dispersed.
Porous MgO tubes extended deoxidation into later operational stages and produced a higher inclusion density per unit area than dense Al2O3 tubes.

Cite This Study

Yang et al. (2007) studied this question.

synapsesocial.com/papers/6a94c7336cfb2e8db71f1265 https://doi.org/10.2355/isijinternational.47.699

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January 1, 2007ISIJ InternationalOpen Access

Behavior of Inclusions in Deoxidation Process of Molten Steel with in Situ Produced Mg Vapor

View Full Paper

Ask AI

Bookmark

Authors

JYJian YangShanghai University TYTatsuhito Yamasaki MKMamoru KuwabaraShougang Institute of Technology

Discussion

Member takes

Implication

Experimental investigation shows sustained deoxidation and fine inclusion dispersion in molten steel via in situ magnesium vapor, suggesting enhanced steel cleanness and grain refinement.

Key Points

To examine the formation, morphology, and removal behavior of non-metallic inclusions during steel deoxidation using in situ generated magnesium vapor.
Generated magnesium vapor in situ via the aluminothermic reduction of magnesium oxide in molten steel.
Compared inclusion characteristics and deoxidation kinetics using porous MgO immersion tubes versus dense Al2O3 immersion tubes under varying gas flow rates and pellet charging sequences.
Generated inclusions were predominantly fine, spherical, and resistant to clustering, exhibiting decreasing MgO content and increasing SiO2 content over time.
Rising carrier gas bubbles selectively floated out larger inclusions to purify the melt, while fine inclusions remained dispersed.
Porous MgO tubes extended deoxidation into later operational stages and produced a higher inclusion density per unit area than dense Al2O3 tubes.

Cite This Study

Yang et al. (2007) studied this question.

synapsesocial.com/papers/6a94c7336cfb2e8db71f1265 https://doi.org/10.2355/isijinternational.47.699

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