Which outcome resulted from incomplete annealing during early cast iron production?

💡 Explanation

Increased susceptibility to brittle fracture occurred because residual stress concentrations remained after casting; the annealing process relieves this via stress-relaxation, therefore decreasing brittleness, rather than enhancing other properties because the microstructure remains inhomogeneous and weak.

• Which functionality degradation occurred when medieval astrolabes experienced thermal expansion in desert climates?
• Which mechanical outcome results when pre-industrial square-rigged sailing ships experience sustained beam winds?
• Which production outcome increased the vulnerability of early Damascus steel swords?
• Which consequence results when the angle of the herringbone brick pattern is improperly set on the Mughul era garden aqueduct system?
• Which consequence results when thermal expansion stresses mosaic tiles secured with 'pietra dura'?
• Which property of medieval Islamic astrolabes caused inaccuracies at high latitudes?