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← HistoryWhich consequence results when high phosphorus content affects early Chinese cast iron?
A)Increased susceptibility to brittle fracture✓
B)Enhanced resistance to rust corrosion
C)Improved flexibility under tensile load
D)Higher weldability for joining sections
💡 Explanation
The high phosphorus in early Chinese cast iron resulted in iron phosphide formation via solid solution hardening, decreasing ductility. This promotes cleavage fracture because crack propagation requires less energy; therefore, the iron fails more easily, rather than bending or corroding.
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