Which risk increased for early cast iron cannons cast using the lost-wax (cire-perdue) method?

💡 Explanation

Accelerated oxidation occurred due to slag inclusions inherent in early cast iron production, caused by incomplete smelting and inefficient removal during the lost-wax process. These impurities weakened the iron matrix, because inclusion interfaces accelerate corrosion; therefore, oxidation was much more likely, rather than fragmentation (A), embrittlement (C), or simple aiming inaccuracy issues (D).

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