Failure of a Cast Conveyor Chain Link
The conveyor chain link failed by fracturing through a fabrication weld after some time in service. The link was made of cast low-alloy steel heat treated to a hardness of 285 HRB. The fabrication weld was made using E7018 electrodes. The fracture surfaces were almost entirely covered with beach marks, indicating fatigue cracking. The beach marks emanated from a 6.4 mm (1/4 in.) wide band of unusual appearance running across the center of the fracture. Saw cuts were made perpendicular to both of the fracture surfaces and across the unusual-looking bands. The cut surfaces were ground and etched with...
Failure of a Cast Conveyor Chain Link, ASM Failure Analysis Case Histories: Material Handling Equipment, ASM International, 2019, https://doi.org/10.31399/asm.fach.matlhand.c0047432
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