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Abstract

Failure analysis of a fishhook that broke during retrieval is described. Although the broken hook was discarded, several companion hooks were analyzed (chemistry, microhardness, metallographic cross section, and tensile properties) as were comparable products made by other hook manufacturers. Tensile test data indicated that the companion hooks were significantly different from hooks made by other manufacturers. The hooks broke into several pieces and failed with little or no plastic deformation, while hooks made by other manufacturers plastically deformed and did not break during testing.

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J.P. Sauer, Litigation Analysis Related to a Fragmented Fishhook, ASM Failure Analysis Case Histories: Household Products and Consumer Goods, ASM International, 2019, https://doi.org/10.31399/asm.fach.homegoods.c9001631

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