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Which degradation mechanism limited early Mesopotamian bronze tools used in cutting abrasive stones like sandstone?

A)Phase transformation accelerated by work hardening
B)Grain boundary oxidation creating brittle fracture
C)Preferential leaching of tin causing de-zincification
D)Abrasive wear dulling the cutting edge

💡 Explanation

When cutting abrasive stone, two-body abrasive wear occurs because hard particles remove material from a softer surface, resulting in the tool's edge becoming dull. Therefore, abrasive wear is the primary limitation, rather than phase transformations or oxidation/leaching which require different environmental or stress conditions.

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