On the Interpretation of Melt Quality Assessment of A356 Aluminum Alloy by the Reduced Pressure Test: The Bifilm Index and Its Physical Meaning

  • Yazar/lar ULUDAĞ, Muhammet
    ÇETİN,Remzi
    DIŞPINAR, Derya
    TİRYAKİOĞLU, Murat
  • Yayın Türü Makale
  • Yayın Tarihi 2018
  • DOI Numarası 10.1007/s40962-018-0217-4
  • Yayıncı Springer International Publishing
  • Tek Biçim Adres http://hdl.handle.net/20.500.12498/2843

The oxide layer on liquid aluminum serves as a protective property to prevent the alloy from further oxidation. However, it has the potential to be a source of porosity when entrained into the bulk of the liquid. For this reason, oxides entrained into aluminum castings have been shown to degrade casting quality. In the current study, the effectiveness of the reduced pressure test in assessing the quality of A356 alloy melts has been investigated under various conditions obtained by changing six different melt parameters. Several metrics, including average pore size, number density of pores, bifilm index, have been used to measure melt quality. Results have shown that the bifilm index provides reliable measurements of melt quality. Moreover, the bifilm index has been found to have a physical meaning, volume fraction of pores, especially when bifilm index is higher than 50 mm. © 2018, American Foundry Society.

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Eser Adı
(dc.title)
On the Interpretation of Melt Quality Assessment of A356 Aluminum Alloy by the Reduced Pressure Test: The Bifilm Index and Its Physical Meaning
Yayın Türü
(dc.type)
Makale
Yazar/lar
(dc.contributor.author)
ULUDAĞ, Muhammet
Yazar/lar
(dc.contributor.author)
ÇETİN,Remzi
Yazar/lar
(dc.contributor.author)
DIŞPINAR, Derya
Yazar/lar
(dc.contributor.author)
TİRYAKİOĞLU, Murat
DOI Numarası
(dc.identifier.doi)
10.1007/s40962-018-0217-4
Atıf Dizini
(dc.source.database)
Scopus
Yayıncı
(dc.publisher)
Springer International Publishing
Yayın Tarihi
(dc.date.issued)
2018
Kayıt Giriş Tarihi
(dc.date.accessioned)
2020-08-07T12:52:09Z
Açık Erişim tarihi
(dc.date.available)
2020-08-07T12:52:09Z
Kaynak
(dc.source)
International Journal of Metalcasting
ISSN
(dc.identifier.issn)
19395981 (ISSN)
Özet
(dc.description.abstract)
The oxide layer on liquid aluminum serves as a protective property to prevent the alloy from further oxidation. However, it has the potential to be a source of porosity when entrained into the bulk of the liquid. For this reason, oxides entrained into aluminum castings have been shown to degrade casting quality. In the current study, the effectiveness of the reduced pressure test in assessing the quality of A356 alloy melts has been investigated under various conditions obtained by changing six different melt parameters. Several metrics, including average pore size, number density of pores, bifilm index, have been used to measure melt quality. Results have shown that the bifilm index provides reliable measurements of melt quality. Moreover, the bifilm index has been found to have a physical meaning, volume fraction of pores, especially when bifilm index is higher than 50 mm. © 2018, American Foundry Society.
Yayın Dili
(dc.language.iso)
en
Tek Biçim Adres
(dc.identifier.uri)
http://hdl.handle.net/20.500.12498/2843
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