During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to____________________?

During decarburising of a plain carbon steel, the thickness of ferrite

1.	During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to____________________?
A.	Time
B.	Square root of time
C.	Square of time
D.	Cube of time
Answer» C. Square of time

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During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to____________________?

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