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 precision limit arises when calculating celestial altitude using a cast bronze medieval astrolabe?
• Which outcome resulted from the practice of chinampa agriculture by the Aztecs in shallow lakes?
• Which process allowed ancient smiths to create pattern-welded Damascus steel blades?
• Which function did epicycles serve in Ptolemy's geocentric model of the cosmos?
• Which outcome was accelerated during the Bronze Age in Mesopotamia when dissimilar bronze alloys contacted in moist soil?
• Which effect limited the geodetic accuracy of early Islamic astrolabes constructed using brass at varying temperatures?