Processing and Mechanical Properties of a Tricalcium Phosphate-Dispersed Magnesium-Based Composite
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A magnesium matrix composite comprising Mg0.5mass%Ca and 10 vol.% ¢-tricalcium phosphate (TCP) particles was processed with the aim of developing biodegradable material. The composite was produced by extruding a mixture of two component powders at 538K. The matrix of the extruded composite comprised fine equiaxed grains (grain size: 1.3 μm). Moreover, isolated ¢-TCP particles and agglomerated particles (size: 1015μm) were observed. Owing to grain refinement, the composite exhibited a high yield strength (>300MPa) at room temperature and behaved in a superplastic manner at 3548K. [doi:10.2320/matertrans.M2018304]