Open Access System for Information Sharing

Login Library

 

Thesis
Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads
Full metadata record
Files in This Item:
There are no files associated with this item.
DC FieldValueLanguage
dc.contributor.author이호열-
dc.date.accessioned2018-10-17T06:04:27Z-
dc.date.available2018-10-17T06:04:27Z-
dc.date.issued2016-
dc.identifier.otherOAK-2015-07502-
dc.identifier.urihttp://postech.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002296157ko_KR
dc.identifier.urihttps://oasis.postech.ac.kr/handle/2014.oak/93930-
dc.descriptionMaster-
dc.description.abstractIn recent years, automobile steels have been developed to hypo-peritectic and high alloyed steels matched to specific customer needs of low weight and high strength, which leads to severe surface cracks on the slabs. The problem can be improved by reducing the heat transfer as solidification initiates in the continuous casting process. One approach is to utilize a high basicity mold flux which shows low heat transfer rate due to larger amount of crystalline phases. As a result, basicity of the commercial mold fluxes for crack- sensitive steels has been increased gradually. Nevertheless, the studies on extreme high basicity mold fluxes are scarce. Here crystallization characteristics of the extreme high basicity mold fluxes were investigated using Differential Scanning Calorimetry (DSC). In order to prevent evaporation of F-containing species, flux samples were sealed in a platinum crucible by welding. The morphology and composition of crystals in mold fluxes were also verified by Field Emission Scanning Electron Microscope (FE-SEM) equipped with Energy Dispersive X-ray Spectroscopy (EDS). Finally, the non-isothermal melt crystallization kinetics of cuspidine formation were studied to more fully comprehend crystallization behaviors. The results obtained should be useful to comprehend the features of commercial mold fluxes and develop new mold fluxes from now on.-
dc.languageeng-
dc.publisher포항공과대학교-
dc.titleCharacteristic Study on Crystallization Behaviors of Extreme High Basicity Mold Fluxes-
dc.typeThesis-
dc.contributor.college철강대학원 철강학과-
dc.date.degree2016- 8-
dc.type.docTypeThesis-

qr_code

  • mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Views & Downloads

Browse