Which outcome results when improperly heat-treating crucible steel during the 18th century?

💡 Explanation

When crucible steel is improperly heat-treated (cooled too rapidly), martensite transformation occurs because the carbon atoms are trapped in the iron lattice, causing extreme hardness but also brittleness. Therefore increased brittleness results, rather than reduced hardness, elevated ductility, or decreased corrosion resistance which require controlled, slower cooling or alloying.

• Which navigational error arises as a consequence of consistently misaligned mirrors within a sextant?
• Which visual artifact emerged when early Islamic astronomers observed stars through unpolished lenses?
• Which limit was approached when Roman siege catapults used twisted-fiber springs, impacting trajectory and range?
• Which risk increased during the Bronze Age collapse due to impurities in smelted copper ore?
• Which consequence resulted from extensive terrace farming for maize cultivation in the Andean highlands during the Inca empire?
• Which mechanical effect necessitated the design of staggered or offset gatehouses in Roman fortifications?