Observation of Hot Tearing in Sr-B Modified A356 Alloy

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dc.authorid0000-0001-9150-3292en_US
dc.contributor.authorUludağ, Muhammet
dc.contributor.authorCetin, R.
dc.contributor.authorDispinar, D.
dc.date.accessioned2021-03-20T20:13:36Z
dc.date.available2021-03-20T20:13:36Z
dc.date.issued2017
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Metalurji ve Malzeme Mühendisliği Bölümüen_US
dc.description.abstractIn this work, T-shaped mould design was used to generate hot spot and the effect of Sr and B on the hot tearing susceptibility of A356 was investigated. The die temperature was kept at 250 degrees C and the pouring was carried out at 740 degrees C. The amonut of Sr and B additions were 30 and 10 ppm, respectively. One of the most important defects that may exist in cast aluminium is the presence of bifilms. Bifilms can form by the surface turbulence of liquid metal. During such an action, two unbonded surfaces of oxides fold over each other which act as a crack. Therefore, this defect cause many problems in the cast part. In this work, it was found that bifilms have significant effect over the hot tearing of A356 alloy. When the alloy solidifies direetionally, the structure consists of elongated dendritic structure. In the absence of equiaxed dendrites, the growing tips of the dendrites pushed the bifilms to open up and unravel. Thus, leading to enlarged surface of oxide to become more harmful. In this case, it was found that these bifilms initiate hot tearing.en_US
dc.description.sponsorshipScientific Research Projects Coordination Unit of Selcuk UniversitySelcuk University [13101026]; TUBITAK (Turkey)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK)en_US
dc.description.sponsorshipThis work has been supported by the Scientific Research Projects Coordination Unit of Selcuk University (Project number: 13101026). Author would like to thanks to TUBITAK (Turkey) for its support.en_US
dc.identifier.doi10.1515/afe-2017-0151en_US
dc.identifier.endpage168en_US
dc.identifier.issn1897-3310
dc.identifier.issn2299-2944
dc.identifier.issue4en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage165en_US
dc.identifier.urihttp://doi.org/10.1515/afe-2017-0151
dc.identifier.urihttps://hdl.handle.net/20.500.12885/905
dc.identifier.volume17en_US
dc.identifier.wosWOS:000419977700031en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorUludağ, Muhammet
dc.language.isoenen_US
dc.publisherPolska Akad Nauk, Polish Acad Sciencesen_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.subjectA356en_US
dc.subjectCastingen_US
dc.subjectMelt qualityen_US
dc.subjectGrain refinementen_US
dc.subjectHot tearingen_US
dc.titleObservation of Hot Tearing in Sr-B Modified A356 Alloyen_US
dc.typeArticleen_US

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