Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Modeling and simulation of weld solidification cracking part I: A pore-based crack criterion
Luleå University of Technology, Luleå, 97187, Sweden.
Luleå University of Technology, Luleå, 97187, Sweden.
Högskolan Väst, Institutionen för ingenjörsvetenskap, Avdelningen för svetsteknologi (SV). (PTW PRIMUS)ORCID-id: 0000-0001-9065-0741
Luleå University of Technology, Luleå, 97187, Sweden.
2019 (engelsk)Inngår i: Welding in the World, ISSN 0043-2288, E-ISSN 1878-6669, Vol. 63, nr 5, s. 1489-1502Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Several advanced alloy systems are susceptible to weld solidification cracking. One example is nickel-based superalloys, which are commonly used in critical applications such as aerospace engines and nuclear power plants. Weld solidification cracking is often expensive to repair and, if not repaired, can lead to catastrophic failure. This study, presented in three papers, presents an approach for simulating weld solidification cracking applicable to large-scale components. The results from finite element simulation of welding are post-processed and combined with models of metallurgy, as well as the behavior of the liquid film between the grain boundaries, in order to estimate the risk of crack initiation. The first paper in this study describes the crack criterion for crack initiation in a grain boundary liquid film. The second paper describes the model for computing the pressure and the thickness of the grain boundary liquid film, which are required to evaluate the crack criterion in paper 1. The third and final paper describes the application of the model to Varestraint tests of alloy 718. The derived model can fairly well predict crack locations, crack orientations, and crack widths for the Varestraint tests. The importance of liquid permeability and strain localization for the predicted crack susceptibility in Varestraint tests is shown. © 2019, The Author(s).

sted, utgiver, år, opplag, sider
2019. Vol. 63, nr 5, s. 1489-1502
Emneord [en]
Crack initiation; Grain boundaries; Liquid films; Nickel alloys; Nuclear fuels; Nuclear power plants; Paper; Risk perception; Solidification; Welding; Welds, Alloy 718; Catastrophic failures; Crack susceptibilities; Critical applications; Finite element simulations; Hot cracking; Nickel- based superalloys; Solidification cracking, Cracks
HSV kategori
Forskningsprogram
TEKNIK, Produktions- och materialteknik
Identifikatorer
URN: urn:nbn:se:hv:diva-14477DOI: 10.1007/s40194-019-00760-xISI: 000482459300029Scopus ID: 2-s2.0-85068801005OAI: oai:DiVA.org:hv-14477DiVA, id: diva2:1356413
Forskningsfinansiär
Vinnova, 2013-01140Swedish Armed Forces, 2017-04837
Merknad

Funders: FMV

Tilgjengelig fra: 2019-10-01 Laget: 2019-10-01 Sist oppdatert: 2020-02-03bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Andre lenker

Forlagets fulltekstScopus

Person

Andersson, Joel

Søk i DiVA

Av forfatter/redaktør
Andersson, Joel
Av organisasjonen
I samme tidsskrift
Welding in the World

Søk utenfor DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 171 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf