Magnesium (Mg) alloys are usually used as corrosion-resistant materials, but their corrosion properties are seldom utilised. To be used as a degradable material, Fe/Mg–8Al–1Zn matrix composite was fabricated by powder compaction and then hot extrusion. The microstructure of the composite and the distribution of second phase β-Mg17Al12 were observed. It finds that Fe is evenly distributed in Mg matrix. The corrosion rates are evaluated by hydrogen evolution and polarisation tests. The results indicate that the addition of Fe and β-phases can enhance the compressive strength and produce more micro-galvanic batteries, which results to accelerate the corrosion rate considerably. The hydrogen evolution rate is dramatically reduced and stable comprehensive mechanical properties can be obtained with annealing temperature increased.
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