Effect of quasicrystalline phase on improving the corrosion resistance of a duplex structured Mg–Li alloy

The in situ formation of I-phase improves the corrosion resistance of the duplex structured Mg–6% Li alloy. Corrosion attack on the surfaces of Mg–6% Li alloy is very inhomogeneous and severe pits and filiform corrosion clearly occur on the surfaces after immersion in 0.1M NaCl solution. For the I-p...

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Bibliographic Details
Published in:Scripta materialia 2014-01, Vol.71, p.21-24
Main Authors: Xu, D.K., Han, E.H.
Format: Article
Language:English
Subjects:
Duplex structure
Filiform corrosion
I-phase pockets
Mg–Li
Pitting
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Summary:The in situ formation of I-phase improves the corrosion resistance of the duplex structured Mg–6% Li alloy. Corrosion attack on the surfaces of Mg–6% Li alloy is very inhomogeneous and severe pits and filiform corrosion clearly occur on the surfaces after immersion in 0.1M NaCl solution. For the I-phase-containing Mg–6% Li–6% Zn–1.2% Y alloy, the corrosion attack is homogeneous and no severe pits and filiform corrosion can be observed.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2013.09.025