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← HistoryWhich outcome commonly resulted during early Chinese cast iron production when insufficient carbon was removed?
A)Increased material brittleness✓
B)Improved tensile strength
C)Decreased melting temperature
D)Enhanced welding capability
💡 Explanation
Increased brittleness occurred due to excess carbon, the solidification leads to cementite formation via the mechanism of phase separation, because the high carbon iron carbide segregates along grain boundaries; therefore the iron becomes brittle, rather than more ductile due increased tensile loading capabilities.
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