?What effect does forging have on a rolled steel's grain structure?
A. ?It causes the vertical grain structure to deform into a horizontal layer of softer iron carbide.
B. ?It creates a magnetic field around the metal that adds strength.
C. ?It forms a strong hard layer of fine-grained structure around the core metal.
D. ?It causes the core of the plate to create a smoother softer form of iron.
Answer: C
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Given: Q?H=525 kW; W?=250 kW
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