Assessment of Mechanism of Pore Formation in Directionally Solidified A356 Alloy

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dc.contributor.authorUludag, M.
dc.contributor.authorDispinar, D.
dc.date.accessioned2020-03-26T19:33:59Z
dc.date.available2020-03-26T19:33:59Z
dc.date.issued2017
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractIt is well- known that the better the control of the liquid aluminium allows obtaining of better properties. One of the most important defects that is held responsible for lower properties has been the presence of porosity. Porosity has always been associated with the amount of dissolved hydrogen in the liquid. However, it was shown that hydrogen was not the major source but only a contributor the porosity. The most important defect that causes porosity is the presence of bifilms. These defects are surface entrained mainly due to turbulence and uncontrolled melt transfer. In this work, a cylindrical mould was designed (O30 x 300 mm) both from sand and die. Moulds were produced both from sand and die. Water cooled copper chill was placed at the bottom of the mould in order to generate a directional solidification. After the melt was prepared, prior to casting of the DC cast samples, reduced pressure test sample was taken to measure the melt quality (i.e. bifilm index). The cast parts were then sectioned into regions and longitudinal and transverse areas were investigated metallographically. Pore size, shape and distribution was measured by image analysis. The formation of porosity was evaluated by means of bifilm content, size and distribution in A356 alloy.en_US
dc.identifier.doi10.1515/afe-2017-0029en_US
dc.identifier.endpage162en_US
dc.identifier.issn1897-3310en_US
dc.identifier.issn2299-2944en_US
dc.identifier.issue1en_US
dc.identifier.pmid#YOKen_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage157en_US
dc.identifier.urihttps://dx.doi.org/10.1515/afe-2017-0029
dc.identifier.urihttps://hdl.handle.net/20.500.12395/34821
dc.identifier.volume17en_US
dc.identifier.wosWOS:000398158200029en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherDE GRUYTER OPEN LTDen_US
dc.relation.ispartofARCHIVES OF FOUNDRY ENGINEERINGen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectDirectional solidificationen_US
dc.subjectPorosityen_US
dc.subjectBifilm indexen_US
dc.subjectGrain refinementen_US
dc.subjectCastingen_US
dc.titleAssessment of Mechanism of Pore Formation in Directionally Solidified A356 Alloyen_US
dc.typeArticleen_US

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