Mathematics · Material Science & Metallurgy
In an Fe-Fe3C phase diagram, the eutectoid composition is 0.8 wt% C at 725 °C. The maximum solubility of carbon in the α-ferrite phase is 0.025 wt% C. A steel sample containing 0.5 wt% C with no other alloying elements is slowly cooled from 1000 °C to room temperature. What is the fraction of pro-eutectoid α-ferrite in the sample at room temperature?
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0.387
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