Topic: Material Science
White iron structure consists of
- A. Pearlite
- B. Cementite
- C. Ferrite
- D. Pearlite and Cementite
Answer: D. Pearlite and Cementite
Explanation: The structure of white cast iron consists of pearlite and a large amount of cementite (iron carbide), often in a eutectic mixture called ledeburite. This high cementite content makes it very hard and brittle.