Formation of novel flower like silicon phases and evaluation of mechanical properties of hypereutectic melt spun Al 20Si 5Fe alloys with addition of V     
Yazarlar (3)
Orhan Uzun
Bülent Ecevit Üniversitesi, Türkiye
Muhammed Fatih Kılıçaslan
Kastamonu Üniversitesi, Türkiye
Prof. Dr. Fikret YILMAZ Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Materials Science and Engineering A
Dergi ISSN 0921-5093 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 06-2014
Cilt No 607
Sayı 1
Sayfalar 368 / 375
DOI Numarası 10.1016/j.msea.2014.04.025
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S0921509314004705
Özet
In this work, rapidly solidified hypereutectic Al-20Si-5Fe-. XV (X=0, 0.5 and 1) alloys were fabricated by melt spinning under vacuum. Microstructural and spectroscopic analyses were performed using SEM, TEM, TEM-MAPing, TEM-EDS and XRD measurements. Mechanical properties of the alloys were determined using DSI measurements. Experimental results indicated that addition of 0.5. wt% V to melt-spun Al-20Si-5Fe alloys induced formation of a novel flower-like Si phase. And addition of higher amount V (1. wt%), caused formation of refined Si phases and mostly hindered formation of Fe-bearing intermetallics. Observations along with manuscript strongly indicate that V modifies the Si phases by the impurity induced twinning (IIT). Changes in the dynamic microhardness of the samples were mainly determined by the size of Si phases. Addition of vanadium led to quite lower elastic modulus in the vanadium added alloys compared to base alloy. © 2014 Elsevier B.V.
Anahtar Kelimeler
Al-Si alloys | Fe-containing intermetallics | Melt spinning | Vanadium