Corrosion behavior of Al-60 vol.% SiCp composites in NaCl solution
Küçük Resim Yok
Tarih
2004
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Bv
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, corrosion behavior of pure Al and Al-4 wt.% Mg alloy matrix composites, comprising 60 vol.% SiC particles, has been investigated. Composites were produced by pressure infiltration technique at 750 degreesC. The corrosion tests were carried out in 3.5 wt.% NaCl environment up to 28 days. The weight loss of the composites increased with increasing duration time up to 3-5 days then remained constant. Scanning electron microscopy (SEM) analysis showed that Al-4 wt.% Mg alloyed matrix composite exhibited higher corrosion resistance than pure Al matrix composite although potentiodynamic polarisation measurements showed higher i(corr) values of Al-4 wt.% Mg alloyed matrix composites than pure Al matrix composites. Experimental results revealed that precipitation of Mg2Si as a result of reaction between Al-Mg alloy and SiC particle has a beneficial effect on corrosion resistance of Al-4Mg alloy matrix composites due to interruption of the continuity of the matrix channels within the pressure infiltrated composites. (C) 2004 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
corrosion, Al-SiC composite, pressure infiltration
Kaynak
Materials Letters
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
58
Sayı
22-23
