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Defect formation mechanisms in lamellar graphite iron related to the casting geometry
Jönköping University.
Jönköping University.
SinterCast AB, Katrineholm.
Linnaeus University, Faculty of Technology, Department of Mechanical Engineering.ORCID iD: 0000-0003-0453-0503
2016 (English)In: International Journal of Cast Metals Research, ISSN 1364-0461, E-ISSN 1743-1336, Vol. 29, no 5, p. 279-285Article in journal (Refereed) Published
Abstract [en]

Although lamellar cast iron has been used in advanced applications for about 20 years, our knowledge about the mechanisms affecting microstructure and defect formation is relatively limited. The present paper summarises some solidification-related phenomena from a series of recently published peer-reviewed papers and scientific theses and suggests a mechanism of defect formation which is dependent on the shape of the solidifying casting geometry. When shrinkage porosity or metal expansion penetration occurs, evidence of material transport in the intergranular zone of primary equiaxed austenite grains in the casting and in the intergranular regions between the sand grains in the mould material is seen. Material transport occurs across the casting-mould interface, where the existence of or the permeability of the primary columnar zone determines if material transport can take place.

Place, publisher, year, edition, pages
2016. Vol. 29, no 5, p. 279-285
Keyword [en]
Lamellar graphite iron, Shrinkage porosity, Metal expantion penetrayion, Defect formation mechanisms, Primary austenite grains, Equiaxed zone, Columnar zone, Columnar to equiaxed transition
National Category
Metallurgy and Metallic Materials
Research subject
Technology (byts ev till Engineering), Mechanical Engineering
Identifiers
URN: urn:nbn:se:lnu:diva-58208DOI: 10.1080/13640461.2016.1211579ISI: 000386206200006Scopus ID: 2-s2.0-84980349450OAI: oai:DiVA.org:lnu-58208DiVA, id: diva2:1047715
Available from: 2016-11-18 Created: 2016-11-18 Last updated: 2017-11-29Bibliographically approved

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Dugic, Izudin

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CiteExportLink to record
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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
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