(b) Explain the eutectoid reaction in the iron-carbon equilibrium diagram. Write a note on the microconstituents mentioned in this reaction.
Explanation
The eutectoid reaction is an important transformation in the iron-carbon system as it occurs at a specific temperature and involves the transformation of austenite into pearlite. The microconstituents mentioned in this reaction, pearlite and cementite, are important in understanding the microstructure of steel alloys.
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