Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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
A numerical model for simulating the effect of strain rate on eutectic band thickness
University West, Department of Engineering Science, Division of Welding Technology. (PTW)ORCID iD: 0000-0002-2197-6243
Lulea University of Technology, 97187 Luleå, Sweden.
Lulea University of Technology, 97187 Luleå, Sweden.
Lulea University of Technology, 97187 Luleå, Sweden.
Show others and affiliations
2020 (English)In: Welding in the World, ISSN 0043-2288, E-ISSN 1878-6669, Vol. 64, p. 1635-1658Article in journal (Refereed) Published
Abstract [en]

Large tensile strains acting on the solidifying weld metal can cause the formation of eutectic bands along grain boundaries. These eutectic bands can lead to severe liquation in the partially melted zone of a subsequent overlapping weld. This can increase the risk of heat-affected zone liquation cracking. In this paper, we present a solidification model for modeling eutectic bands. The model is based on solute convection in grain boundary liquid films induced by tensile strains. The proposed model was used to study the influence of strain rate on the thickness of eutectic bands in Alloy 718. It was found that when the magnitude of the strain rate is 10 times larger than that of the solidification rate, the calculated eutectic band thickness is about 200 to 500% larger (depending on the solidification rate) as compared to when the strain rate is zero. In the paper, we also discuss how eutectic bands may form from hot cracks. © 2020, The Author(s).

Place, publisher, year, edition, pages
2020. Vol. 64, p. 1635-1658
Keywords [en]
Eutectics; Grain boundaries; Heat affected zone; Liquid films; Solidification; Tensile strain, Alloy 718; Effect of strain; Hot cracks; Liquation cracking; Partially melted zone; Solidification modeling; Solidification rate; Weld metal, Strain rate
National Category
Manufacturing, Surface and Joining Technology Metallurgy and Metallic Materials
Research subject
Production Technology
Identifiers
URN: urn:nbn:se:hv:diva-15741DOI: 10.1007/s40194-020-00918-yISI: 000540687300001Scopus ID: 2-s2.0-85086930636OAI: oai:DiVA.org:hv-15741DiVA, id: diva2:1460905
Funder
Vinnova, 2017-04837Available from: 2020-08-25 Created: 2020-08-25 Last updated: 2021-01-27Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records

Draxler, JoarRaza, TahiraAndersson, Joel

Search in DiVA

By author/editor
Draxler, JoarRaza, TahiraAndersson, Joel
By organisation
Division of Welding Technology
In the same journal
Welding in the World
Manufacturing, Surface and Joining TechnologyMetallurgy and Metallic Materials

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 240 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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