Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Study of the deoxidation of steel with aluminum wire injection in a gas-stirred ladle
Department of Materials Science and Engineering, Division of Metallurgy, Royal Institute of Technology.
Department of Materials Science and Engineering, Division of Metallurgy, Royal Institute of Technology.
Department of Materials Science and Engineering, Division of Metallurgy, Royal Institute of Technology.
2001 (English)In: Metallurgical and materials transactions. B, process metallurgy and materials processing science, ISSN 1073-5615, E-ISSN 1543-1916, Vol. 32, no 2, p. 319-328Article in journal (Refereed) Published
Abstract [en]

In the present work, the deoxidation of liquid steel with aluminum wire injection in a gas-stirred ladle was studied by mathematical modeling using a computational fluid dynamics (CFD) approach. This was complemented by an industrial trial study conducted at Uddeholm Tooling AB (Hagfors, Sweden). The results of the industrial trials were found to be in accordance with the results of the model calculation. In order to study the aspect of nucleation of alumina, emphasis was given to the initial period of deoxidation, when aluminum wire was injected into the bath. The concentration distributions of aluminum and oxygen were calculated both by considering and not considering the chemical reaction. Both calculations revealed that the driving force for the nucleation of Al2O3 was very high in the region near the upper surface of the bath and close to the wire injection. The estimated nucleation rate in the vicinity of the aluminum wire injection point was much higher than the recommended value for spontaneously homogeneous nucleation, 103 nuclei/(cm3/s). The results of the model calculation also showed that the alumina nuclei generated at the vicinity of the wire injection point are transported to other regions by the flow.

Place, publisher, year, edition, pages
2001. Vol. 32, no 2, p. 319-328
Identifiers
URN: urn:nbn:se:ltu:diva-9393Local ID: 8017ee90-2dbe-40b0-ba9e-900fafb54da8OAI: oai:DiVA.org:ltu-9393DiVA, id: diva2:982331
Note
Upprättat; 2012; 20120913 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-05-28Bibliographically approved

Open Access in DiVA

No full text in DiVA

Authority records BETA

Nurni, Viswanathan

Search in DiVA

By author/editor
Nurni, Viswanathan
In the same journal
Metallurgical and materials transactions. B, process metallurgy and materials processing science

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 36 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf