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dc.contributor.authorIversen, Fionnnb_NO
dc.date.accessioned2014-12-19T13:25:09Z
dc.date.available2014-12-19T13:25:09Z
dc.date.created2006-12-13nb_NO
dc.date.issued2002nb_NO
dc.identifier125463nb_NO
dc.identifier.isbn82-471-5454-4nb_NO
dc.identifier.urihttp://hdl.handle.net/11250/248746
dc.description.abstractIn the modern process of continuous Direct Chill (DC) hot top casting of aluminium extrusion ingot with gas slip, poor surface quality of the cast ingot can still be a problem. In the worst cases pronounced surface wrinkling may occur coupled with periodic zones of reduced grain size, macrosegregation and exudation at the surface. The observed surface irregularities are believed to be linked to periodic oscillations or folding of the free molten aluminium surface in the mould, the meniscus, resulting in varying solidification conditions. The focus of this work is to gain a better understanding of the dynamics of the meniscus and the effect it has on ingot surface formation.nb_NO
dc.languageengnb_NO
dc.publisherFakultet for naturvitenskap og teknologinb_NO
dc.relation.ispartofseriesDr. ingeniøravhandling, 0809-103X; 2002:57nb_NO
dc.subjectMaterials scienceen_GB
dc.subjectTECHNOLOGY: Materials scienceen_GB
dc.titleMeniscus Dynamics in Aluminium Extrusion Ingot Castingnb_NO
dc.typeDoctoral thesisnb_NO
dc.source.pagenumber220nb_NO
dc.contributor.departmentNorges teknisk-naturvitenskapelige universitet, Fakultet for naturvitenskap og teknologi, Institutt for materialteknologinb_NO
dc.description.degreedr.ing.nb_NO
dc.description.degreedr.ing.en_GB


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