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← ScienceWhich risk increases when rapid cooling of continuous casting steel slabs initiates?
A)Dendrite arm coarsening accelerates considerably
B)Austenite grain growth remains consistent
C)Martensite formation becomes uncontrolled✓
D)Ferrite formation will become homogenous
💡 Explanation
Uncontrolled martensite formation increases during rapid cooling due to the diffusionless solid-state ieseTRANSFORMATION. Because cooling stresses accumulate into uncontrolled martensite, rather than controlled phases below equilibrium, it increases material cracking.
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