Which degradation process limited axehead lifespan of early bronze axes in Mesopotamia following river water immersion?

💡 Explanation

When bronze axes are submerged in water, especially river water containing dissolved oxygen, oxidizing corrosion occurs because bronze contains copper which reacts with oxygen, accelerating crack propagation within the bronze microstructure. Oxidizing corrosion therefore results, rather than dezincification, eutectic phase transformation, or galvanic corrosion which require dissimilar metals in close proximity.

• Which outcome results from continuous maize cultivation on steeply terraced hillsides lacking adequate drainage?
• Which consequence results when rigging pre-19th century square-rigged naval ship experiences cumulative salt spray and rainwater?
• Which simplification was critical for astronomers using al-Khwarizmi's algebraic method to accurately predict planetary positions?
• Which outcome occurs when a Roman aqueduct experiences differential ground settlement?
• Which advance in surveying resulted from applying quadratic equations during Mesopotamian land division?
• Which outcome commonly occurred when using 18th-century sextants without horizon mirrors on ships experiencing heavy pitching?