Abstract
The aim of this paper is to investigate the structure of in situ Al/Si functionally graded materials by electromagnetic separation method. The research shows that the structure of Al/Si (hypereutectic) sample produced by this method changes from Al–Si hypereutectic structure with a great number of primary Si particles to Al–Si eutectic structure to Al–Si hypoeutectic structure with a great number of primary Al dendrites from one side of the sample to the other. Moreover, the hardness of the sample and the volume fraction of primary Si particles have gradient character in the sample.
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