Which outcome occurred when blast furnaces introduced during China's Song Dynasty created higher carbon concentrations in early cast iron?

💡 Explanation

Increased carbon leads to increased brittleness because carbon atoms disrupted the iron crystal structure via solid solution strengthening; therefore, components became less durable rather than more so; alternative options improved toughness are properties of lower-carbon steels.

• Which consequence arose when early Chinese gunpowder recipes used sulfur?
• Which challenge complicates siege tower use in ancient Mesopotamia?
• During a Viking longship voyage, which outcome results when sailcloth permeability dramatically increases?
• Which mechanical outcome results when the alidade's vane shadows misalign on a historical astrolabe?
• Which consequence results when Roman aqueduct lime deposits thicken significantly?
• Which risk increased notably in 14th-century European siege warfare because of early cast-iron cannons employing insufficient barrel reinforcement?