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A blacksmith made a knife using 0.45wt%C steel by forging at 1235C. After forging, he cooled the blade to room temperature (assuming equilibrium cooling). Draw

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A blacksmith made a knife using 0.45wt%C steel by forging at 1235C. After forging, he cooled the blade to room temperature (assuming equilibrium cooling). Draw the IronCarbon equilibrium diagram neatly and: (a) Mark and write the Eutectic and eutectoid reactions. [5] (b) Sketch and describe the microconstituents of the knife at 350C, and 790C. [5]

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