Which consequence results when ancient smiths overheated bronze during the lost-wax casting process?

💡 Explanation

Tin has a lower boiling point than copper; thus, localized overheating induces preferential Vaporization because the alloy experiences micro-segregation via a phase change. Therefore vapor escapes to form pores, rather than maintaining uniform composition.

• Hydraulic jumps within gravity-fed Mesopotamian irrigation canals caused which effect?
• Which outcome occurred when pre-Columbian terraces at Angkor suffered deforestation?
• Which outcome follows from intensive terrace farming exceeding the hydric interval?
• Which outcome occurs when a Roman aqueduct's gradient is significantly reduced over a long section?
• Increased road traffic causes which outcome within Roman 'specus' aqueducts?
• Which defensive advantage resulted from the Roman army's widespread adoption of the pilum?