Which outcome results when residual silica remains in post-bloom cast iron during Han crossbow trigger production?

💡 Explanation

Diminished tensile load capacity results from silica inclusions causing stress concentrations along grain boundaries because *hindered dislocation glide* diminishes material cohesion; therefore, lower ultimate strength, rather than affecting quench cracking/corrosion/work hardening differently.

• Which mechanism allowed Roman siege towers (turres ambulatoriae) to overcome defensive walls, specifically improving troop deployment?
• Which outcome occurs when imperfect machining degrades a historical sextant's mirrors?
• Which limitation affected Incan terrace agriculture during El Niño?
• Which outcome commonly resulted when 18th-century navigators misread a sextant's vernier scale?
• Which unintended material consequence occurred with increased iron production for 18th-century ships?
• Which focusing improvement occurred when Islamic scholars refined Ptolemy's optics?