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Crystal structure of γ-iron (austenite) Identify the space lattice of gamma iron (the high-temperature phase of iron known as austenite). Choose the correct option.

Q: Crystal structure of γ-iron (austenite) Identify the space lattice of gamma iron (the high-temperature phase of iron known as austenite). Choose the correct option.

Concept Gamma iron (austenite) has a face centred cubic (FCC) structure. Alpha iron (ferrite) is BCC at room temperature, while HCP does not occur in pure iron under normal conditions. Final Answer Face centred cubic (FCC) space lattice

Difficulty: Easy

Face centred cubic (FCC) space lattice
Body centred cubic (BCC) space lattice
Close-packed hexagonal (HCP) space lattice
None of these

Correct Answer: Face centred cubic (FCC) space lattice

Explanation:

Concept
Gamma iron (austenite) has a face centred cubic (FCC) structure. Alpha iron (ferrite) is BCC at room temperature, while HCP does not occur in pure iron under normal conditions.

Final Answer
Face centred cubic (FCC) space lattice

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