Physics Help: The micrograph above gives an estimate of the volume fraction of the α phase to be 60%

5 months ago
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The micrograph above gives an estimate of the volume fraction of the α phase to be 60%. As the density of Aluminum and Silicon are similar, we can estimate the wt% of α to also be 60%. With reference to the Al-Si phase diagram, estimate the composition of the alloy in terms on wt% Si

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