Dalarna University's logo and link to the university's website

du.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • chicago-author-date
  • chicago-note-bibliography
  • 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
Modeling the effect of solute drag on recovery and recrystallization during hot deformation of Nb microalloyed steels
Dalarna University, School of Technology and Business Studies, Material Science.
2010 (English)In: ISIJ International, ISSN 0915-1559, E-ISSN 1347-5460, Vol. 50, no 2, p. 239-247Article in journal (Refereed) Published
Abstract [en]

The effect of solute drag on recovery and recrystallization during hot deformation of Nb microalloyed steels has been modeled using a newly developed microstructure model. The model is based on dislocation theory and the calculated dislocation density determines the driving force for recrystallization. Subgrains act as nuclei for recrystallization and have to reach a critical size and configuration in order for recrystallization to start. In the model, the solute drag effect of Nb in solution is described. Nb retards both dislocation and grain boundary movement giving retardation in both recovery and recrystallization. Calculations were compared to experimental results from axisymmetric compression tests combined with stress relaxation. In order to model the effect of solute drag, the experiments were carried out at temperatures where precipitation of Nb(C, N) should not occur. The calculated flow stresses for the compression tests show good fit with experimental data. Also, the calculated results of the relaxation tests show good agreement with experimental data.

Place, publisher, year, edition, pages
2010. Vol. 50, no 2, p. 239-247
Keywords [en]
modeling; flow stress; recrystallization; recovery; solute drag; Nb microalloyed steel
National Category
Engineering and Technology
Research subject
Research Profiles 2009-2020, Steel Forming and Surface Engineering
Identifiers
URN: urn:nbn:se:du-10512ISI: 000275434300009OAI: oai:DiVA.org:du-10512DiVA, id: diva2:542795
Available from: 2012-08-03 Created: 2012-08-03 Last updated: 2021-11-12Bibliographically approved

Open Access in DiVA

No full text in DiVA

Search in DiVA

By author/editor
Bäcke, Linda
By organisation
Material Science
In the same journal
ISIJ International
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 878 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • chicago-author-date
  • chicago-note-bibliography
  • 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