Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
832017 | Materials & Design (1980-2015) | 2010 | 7 Pages |
Abstract
The corrosion behavior of AZ91 magnesium alloy in dilute NaCl solutions was studied using electrochemical measurements, whereby a corrosion map in terms of electrode potential and chloride concentration [Cl−] was obtained. AZ91 alloy exhibited the corrosion and passivation zones in dilute NaCl solutions. The passivation zone became narrow with increasing [Cl−]. The values of open-circuit potential were in the passivation zone when the [Cl−] was less than 0.5 mol/L. XRD patterns showed the presence of the Mg(OH)2, Mg5(CO3)4(OH)2·8H2O and MgO phases in the corrosion product, whereas the latter two phases found in the passive film.
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Authors
Lei Wang, Bo-Ping Zhang, Tadashi Shinohara,