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 0.1 M 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. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
[xu, d. k.
; han, e. h.] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.
; xu, dk (reprint author), chinese acad sci, inst met res, state key lab corros & protect, 62 wencui rd, shenyang 110016, peoples r china.