Which outcome occurs as cast iron cools unevenly?

💡 Explanation

Internal stresses rise during solidification because differential cooling rates create uneven shrinkage; this causes cracking via thermal stress concentrations rather than grain migration or changing material properties uniformly, therefore only internal stresses will weaken its structure.

• Which outcome occurs in early mechanical escapements when iron components experience repeated thermal changes?
• Which outcome limited maize yields on terrace farms in the Andes?
• Which risk disproportionately increased for Mesopotamian bronze tools used in hot arid climates compared to temperate ones?
• Which outcome commonly arises when Roman roadbeds used incompetent Geotechnics?
• Which limitation impacts calculations in 18th-century double sextant observations?
• Which consequence arises in early Islamic surveying when quadratic equations lack a valid solution?