Nitrogen alloying of carbon and stainless steels by gas injection

A model of nitrogen alloying of carbon or stainless steels by bottom nitrogen gas injection in converters or ladles has been developed. It combines a description of the local kinetics in terms of a mixed-control interfacial reaction/liquid-phase mass transfer model and a hydrodynamics description of...

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Veröffentlicht in:	Metallurgical and materials transactions. B, Process metallurgy and materials processing science Process metallurgy and materials processing science, 2000-10, Vol.31 (5), p.905-912
Hauptverfasser:	GAYE, Henri, HUIN, Didier, RIBOUD, Paul V
Format:	Artikel
Sprache:	eng
Schlagworte:	Alloying Applied sciences Carbon Carbon steels Exact sciences and technology Gas injection Interface reactions Iron and steel making Ladle metallurgy Ladles Liquid phases Mass transfer Metals. Metallurgy Nitrogen Production of metals Stainless steel Stainless steels Steel converters Treatment before gravity die casting and continuous casting
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Beschreibung
Zusammenfassung:	A model of nitrogen alloying of carbon or stainless steels by bottom nitrogen gas injection in converters or ladles has been developed. It combines a description of the local kinetics in terms of a mixed-control interfacial reaction/liquid-phase mass transfer model and a hydrodynamics description of the plumes that constitute the active reaction zones. It has been validated from special trials made in the converter and ladle at atmospheric pressure or under vacuum for carbon steels and in the ladle for stainless steels with ultra high N contents.
ISSN:	1073-5615 1543-1916
DOI:	10.1007/s11663-000-0066-3