Which outcome arises when ancient Mesopotamian bronze tools undergo repeated cold hammering?

💡 Explanation

When bronze is cold hammered, work hardening occurs by increasing dislocation density, eventually leading to crystalline grain refinement and embrittlement due to limited slip. Therefore embrittlement results, rather than increased ductility, improved corrosion resistance, or enhanced conductivity which require annealing or alloying.

• Which vulnerability arises when design choices impede proper interlocking and compaction during Roman castra wall construction?
• Which risk increased upon implementing torsion catapults during Roman sieges against fortified cities?
• Which effect results due to subsidence in ancient Andean agricultural terraces using 'enchedding'?
• Which limitation increased as astrolabe miniaturization pushed craftsmanship to its physical constraints?
• Which effect allowed Roman fortifications, like Hadrian's Wall, to maintain structural integrity despite lacking modern mortar?
• Which agricultural outcome frequently impacted the long-term productivity of Inca terrace farming practices?