Carbon is present in the form of _______________________ in grey cast iron ?
Correct answer: C. Flakes
- A. Spheroids
- B. Nodular aggregates of graphite
- C. Flakes
- D. Cementite
Explanation
In grey cast iron, carbon is mainly present as graphite flakes, which give the fractured surface its grey appearance and reduce tensile strength. Nodular graphite occurs in ductile cast iron, while cementite characterises white cast iron.
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