Which mechanical consequence resulted from using wrought iron in early steam boiler construction?

💡 Explanation

When early steam boilers used wrought iron, impurities and slag inclusions caused stress concentration because the material wasn't homogenous leading to crack initiation and propagation. Therefore brittle fracture resulted rather than oxidation, creep, or corrosion, which require different material properties and environments.

• Which risk increases when poorly maintained terraces experience prolonged rainfall on the Andes mountains?
• Which effect increased the firing range of early gunpowder cannons employing windage gap between the ball and barrel?
• Which agricultural consequence faced pre-Columbian chinampa farmers relying on nitrogen fixation in shallow lake environments given seasonal flooding?
• Which limitation occurred with early brass astrolabes used in arid desert climates due to high diurnal temperature?
• Which mechanical consequence arises when silt accumulation reduces Mesopotamian canal slope?
• During early iron production, which outcome arose from incomplete carbon monoxide oxidation in bloomery furnaces?