Question

Gray cast iron is not an Iron-Iron carbide alloy. Evaluate.​

Answer 1

Answer:

Cast iron is a group of iron-carbon alloys with a carbon content more than 2%.[1] Its usefulness derives from its relatively low melting temperature. The alloy constituents affect its colour when fractured: white cast iron has carbide impurities which allow cracks to pass straight through, grey cast iron has graphite flakes which deflect a passing crack and initiate countless new cracks as the material breaks, and ductile cast iron has spherical graphite "nodules" which stop the crack from further progressing.

Answer 2

Answer:

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