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← HistoryWhich quenching outcome was most probable when ancient bronze casters lacked precise temperature control?
A)Grain boundary carbide precipitation
B)Martensitic phase transformation
C)Dendritic segregation intensification✓
D)Increased compositional homogeneity
💡 Explanation
Dendritic segregation intensification arose because non-uniform cooling rates promoted differential solidification via constitutional undercooling. Therefore, dendritic arms became sharply defined; rather than homogenizing, incomplete diffusion due to fast heat extraction amplified compositional differences.
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