Microstructure and microhardness of melt-spun Al-25Si-5Fe-XCo (X = 0, 1, 3, 5) alloys

The microstructure and microhardness evolution of melt-spun Al-25Si-5Fe alloy with Co addition (1, 3 and 5 wt.%) were investigated. Microstructural and spectroscopic analyses demonstrate that Co could refine primary Si grains and change their morphology because it causes higher constitutional undercooling and has large mixing enthalpy with Si. Especially, 3 wt.% Co addition causes homogeneously distributed fine spherical Si particles in the rapidly solidified Al-25Si-5Fe alloy. The size of the spherical silicon particles was from around 200 to 600 nm near the wheel side region, and it varied from 800 nm to 1.3 µm at the air side. The optimum ratio of Si and Co should be between 6 and 8.3 to form spherical Si grains in Al-25/30Si-5Fe alloys. A considerable improvement in microhardness value (from 211 to 370 HV) was obtained with the addition of Co. © 2013 Elsevier Inc.

Yazar Kiliçaslan M.F.
Yilmaz F.
Ergen S.
Hong S.-J.
Uzun O.
Yayın Türü Article
Tek Biçim Adres https://hdl.handle.net/20.500.12628/6615
Tek Biçim Adres 10.1016/j.matchar.2012.12.006
Konu Başlıkları Al-Si alloys
Keywords
Melt spinning
Microhardness
Microstructure
Koleksiyonlar Araştırma Çıktıları | WoS | Scopus | TR-Dizin | PubMed | SOBİAD
Scopus İndeksli Yayınlar Koleksiyonu
Dergi Adı Materials Characterization
Dergi Cilt Bilgisi 77
Sayfalar 15 - 22
Yayın Yılı 2013
Eser Adı
[dc.title]
Microstructure and microhardness of melt-spun Al-25Si-5Fe-XCo (X = 0, 1, 3, 5) alloys
Yazar
[dc.contributor.author]
Kiliçaslan M.F.
Yazar
[dc.contributor.author]
Yilmaz F.
Yazar
[dc.contributor.author]
Ergen S.
Yazar
[dc.contributor.author]
Hong S.-J.
Yazar
[dc.contributor.author]
Uzun O.
Yayın Yılı
[dc.date.issued]
2013
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
The microstructure and microhardness evolution of melt-spun Al-25Si-5Fe alloy with Co addition (1, 3 and 5 wt.%) were investigated. Microstructural and spectroscopic analyses demonstrate that Co could refine primary Si grains and change their morphology because it causes higher constitutional undercooling and has large mixing enthalpy with Si. Especially, 3 wt.% Co addition causes homogeneously distributed fine spherical Si particles in the rapidly solidified Al-25Si-5Fe alloy. The size of the spherical silicon particles was from around 200 to 600 nm near the wheel side region, and it varied from 800 nm to 1.3 µm at the air side. The optimum ratio of Si and Co should be between 6 and 8.3 to form spherical Si grains in Al-25/30Si-5Fe alloys. A considerable improvement in microhardness value (from 211 to 370 HV) was obtained with the addition of Co. © 2013 Elsevier Inc.
Kayıt Giriş Tarihi
[dc.date.accessioned]
2019-12-23
Açık Erişim Tarihi
[dc.date.available]
2019-12-23
Yayın Dili
[dc.language.iso]
eng
Konu Başlıkları
[dc.subject]
Al-Si alloys
Konu Başlıkları
[dc.subject]
Keywords
Konu Başlıkları
[dc.subject]
Melt spinning
Konu Başlıkları
[dc.subject]
Microhardness
Konu Başlıkları
[dc.subject]
Microstructure
Haklar
[dc.rights]
info:eu-repo/semantics/closedAccess
ISSN
[dc.identifier.issn]
1044-5803
Sponsor YAYINCI
[dc.description.sponsorship]
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu: 110M517 Scientific Research Plan Projects of Shaanxi Education Department British Association for Psychopharmacology: 2010/111
Sponsor YAYINCI
[dc.description.sponsorship]
The authors would like to thank the Scientific and Technological Research Council of Turkey (TÜBITAK) for funding the project (project number 110M517 ). The authors would also like to thank the Gaziosmanpasa University Department of Scientific Research Projects (BAP) for funding the project (project number 2010/111 ).
İlk Sayfa Sayısı
[dc.identifier.startpage]
15
Son Sayfa Sayısı
[dc.identifier.endpage]
22
Dergi Adı
[dc.relation.journal]
Materials Characterization
Dergi Cilt Bilgisi
[dc.identifier.volume]
77
Tek Biçim Adres
[dc.identifier.uri]
https://dx.doi.org/10.1016/j.matchar.2012.12.006
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/6615
Görüntülenme Sayısı ( Şehir )
Görüntülenme Sayısı ( Ülke )
Görüntülenme Sayısı ( Zaman Dağılımı )
Görüntülenme
17
09.12.2022 tarihinden bu yana
İndirme
1
09.12.2022 tarihinden bu yana
Son Erişim Tarihi
11 Nisan 2024 11:29
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spherical addition Al-25Si-5Fe particles causes microhardness grains varied region Elsevier optimum improvement considerable obtained alloys Al-25/30Si-5Fe between should morphology change primary refine demonstrate higher analyses spectroscopic Microstructural investigated because constitutional around silicon solidified rapidly evolution
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