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← HistoryWhich effect occurred during early Chinese crossbow manufacturing when poor charcoal was used during carburization?
A)Brittle cast iron results✓
B)Increased tensile strength observed
C)Uniform steel production happens
D)Decreased corrosion rate occurs
💡 Explanation
Insufficient sulfur absorption by the charcoal during carburization caused increased sulfur content in the cast iron. Because sulfur promotes iron embrittlement during casting therefore weaker materials emerged, rather than desirable steel formation or enhanced corrosion resistance.
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