(Solution) - Suppose that a steel of eutectoid composition is cooled to -(2025 Original AI-Free Solution)

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Suppose that a steel of eutectoid composition is cooled to 550°C (1020°F) from 760°C (1400°F) in less than 0.5 s and held at this temperature.
(a) How long will it take for the austenite-to-pearlite reaction to go to 50% completion? To 100% completion?
(b) Estimate the hardness of the alloy that has completely transformed to pearlite.