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← HistoryWhen exceeding the tin solubility limit when casting Bronze Age axes in two-part clay molds, which failure risk increases?
A)Dendritic segregation weakens grain boundaries✓
B)Eutectic melting reduces optimal hardness
C)Age hardening produces material warping
D)Cold working propagation of fatigue cracks
💡 Explanation
Dendritic segregation occurs because excess tin atoms are rejected from the growing crystal structure during solidification. The segregation weakens the boundaries, therefore leading to earlier failure of the ax rather than improved performance from precipitation of secondary phases
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