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Pores and clustering of inclusions in the continuous casting of steel: Precipitation
KTH, Skolan för industriell teknik och management (ITM), Materialvetenskap, Metallernas gjutning.
KTH, Skolan för industriell teknik och management (ITM), Materialvetenskap, Metallernas gjutning.ORCID-id: 0000-0002-8318-1251
KTH, Skolan för industriell teknik och management (ITM), Materialvetenskap, Metallernas gjutning.
(engelsk)Manuskript (preprint) (Annet vitenskapelig)
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-174087OAI: oai:DiVA.org:kth-174087DiVA, id: diva2:857739
Merknad

QS 2015

Tilgjengelig fra: 2015-09-30 Laget: 2015-09-30 Sist oppdatert: 2015-09-30bibliografisk kontrollert
Inngår i avhandling
1. Relationship between motion of bubbles and agglomeration of inclusions into clusters during solidification of continuously cast steel
Åpne denne publikasjonen i ny fane eller vindu >>Relationship between motion of bubbles and agglomeration of inclusions into clusters during solidification of continuously cast steel
2015 (engelsk)Licentiatavhandling, med artikler (Annet vitenskapelig)
Abstract [en]

The possibility of cluster formation during solidication of steel is explored to explain structures that are seen on the fracture surface of the steel. A hypothesis is built that postulates porosities provide favourable locations for inclusions to agglomerate and form clusters.  A thermodynamic model is constructed to describe precipitation of porosity and inclusions. Formation of inclusions follow a nucleation and growth mechanism. Porosities on the other hand are the product of pressure balance in the liquid.  Motion of pores and inclusions is analysed based on the drag force and  surface  stresses. Gradient of surface tension is also identied as a driving force which acts on the pore surface and would cause motion. It is shown that relative motion of pores and inclusions coupled with  the inclusion tendency to get attached on pore surface makes or a viable mechanism explaining agglomeration of inclusion particles to clusters

sted, utgiver, år, opplag, sider
Stockholm: KTH Royal Institute of Technology, 2015. s. 38
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-174077 (URN)978-91-7595-685-5 (ISBN)
Presentation
2015-10-09, Sal M131 Sefström, Brinellvägen 23, KTH, Stockholm, 10:00 (engelsk)
Opponent
Veileder
Merknad

QC 20150930

Tilgjengelig fra: 2015-09-30 Laget: 2015-09-29 Sist oppdatert: 2015-12-15bibliografisk kontrollert

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