Effect of solidification rate on corrosion resistance of cast al-10mg2si in-situ composites
Küçük Resim Yok
Tarih
2019
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The hypoeutectic Al-10Mg2Si (wt%) composites, also denoted as Al-6.3Mg-3.7Si (wt%) alloy, were cast in asteel step mould, in which different solidification rates were obtained. The microstructural characterizations weremade by optical microscope and XRD. Corrosion performances were measured by immersion and electrochemicalcorrosion tests in 3.5% NaCl solution. Microstructure analysis showed that all the alloys consisted of ?-Al, Chinesescript type Mg2Si and needle-like Al5FeSi phases. Increasing solidification rate resulted in a remarkable refinementof Chinese script-like eutectic Mg2Si phases. Corrosion tests revealed that increasing solidification rate improvedthe corrosion resistance of Al-10Mg2Si composites due to the more uniform distribution of Mg2Si phases and thestabilization of protective oxide films on the sample surface.
Açıklama
Anahtar Kelimeler
Kaynak
Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi
WoS Q Değeri
Scopus Q Değeri
Cilt
8
Sayı
2
