Which risk increases when bronze bucket chain dredges encounter abrasive river sediments?

💡 Explanation

When bucket chain dredges encounter abrasive river sediments, repeated cyclical stresses lead to crystal grain deformation within the bronze causing metal fatigue and cracking. Therefore, grain deformation leads to metal fatigue, rather than corrosion, softening, or coating loss which involve bulk chemistry or temperature changes acting over longer timespans.

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