Effect of Ti on the Corrosion Behaviour of In-Situ Mg2Si Particle Reinforced Al-12Si-20Mg-XTi Alloys
Küçük Resim Yok
Tarih
2010
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Trans Tech Publications Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, corrosion behaviour of Al-12Si-20Mg-XTi alloys (Ti content varied between 0 and 4 wt.%) was investigated. Characterizations of the alloys were carried out by microstructural examinations and corrosion tests. Microstructural results showed that precipitation of the Mg2Si phases was observed in Al-12Si-20Mg-XTi alloy matrix as two different morphologies; i.e. as a polyhedral primary particle and as a chinese script. Upon addition of Ti, Al3Ti intermetallic precipitated in the alloy. Corrosion tests were carried out by immersing the alloys in 30 g/l NaCl+10 ml/l HCl solution. Evaluation of corrosion was determined by measuring weight loss for 24 hours and by potentiodynamic polarization tests. Corrosion resistance of the alloy was approximately constant with 1 wt % Ti addition whereas at higher additions, the corrosion rate increased.
Açıklama
5th International Materials Symposium/14th Conference of the Sociedade-Portuguesa-de-Materiais -- APR 05-08, 2009 -- Lisbon, PORTUGAL
Anahtar Kelimeler
Al-Mg-Si alloy, Mg2Si, Al3Ti intermetallic, Corrosion
Kaynak
Advanced Materials Forum V, Pt 1 and 2
WoS Q Değeri
N/A
Scopus Q Değeri
Q4
Cilt
636-637
