Question
Download Solution PDFEutectoid point on Fe - Fe3C (Iron-Iron carbide) phase diagram is represented by:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Eutectoid Point on Fe-Fe3C Phase Diagram
- The eutectoid point in the iron-carbon (Fe-C) phase diagram, specifically the iron-iron carbide (Fe-Fe3C) system, is a critical point where austenite (γ-iron) transforms into a mixture of ferrite (α-iron) and cementite (Fe3C) at a specific composition and temperature. This transformation is known as the eutectoid reaction.
0.76% carbon (approximate) and 727°C (approximate)
- This option correctly identifies the eutectoid point on the Fe-Fe3C phase diagram. The eutectoid composition of 0.76% carbon and the eutectoid temperature of 727°C are the precise conditions under which austenite transforms into a mixture of ferrite and cementite.
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