GATE ME 2024 Set 1 — Question 28
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Engineering Materials → Structure & Properties → Iron-Carbon Diagram
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Question
The phases present in pearlite are
Correct answer
(C) ferrite and cementite
Solution
Pearlite is a two-phased, lamellar (layered) structure composed of alternating layers of -ferrite () and cementite () that occurs in some steels and cast irons. It is formed by the eutectoid decomposition of austenite during slow cooling at . The reaction is: .
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