Article ID Journal Published Year Pages File Type
1503251 Scripta Materialia 2007 4 Pages PDF
Abstract

An Mg–Al–Ca based alloy was investigated by scanning electron microscopy, energy dispersive spectroscopy and scanning Kelvin probe force microscopy following extrusion. The investigations revealed two main intermetallics, i.e. Al–Ca(Sn,Sr) and Al–Mn–Fe, both distributed along the extrusion direction and having distinctive morphology. The microgalvanic couples, i.e. Al–Ca(Sn,Sr)/α-Mg and Al–Mn–Fe/α-Mg showed positive Volta potential differences with the Al–Mn–Fe intermetallic being the noblest (i.e. 262 ± 18 mV vs 62 ± 7 mV).

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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