ASM Failure Analysis Case Histories: Rail and Rolling Stock
Low-Temperature Brittle Fracture in a Steel Tank Car Because of Weld Imperfections
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Published:2019
Abstract
A railway tank car developed a fracture in the region of the sill and shell attachment during operation at -34 deg C (-30 deg F). On either side of the sill-support member, cracking initiated at the weld between a 6.4 mm thick frontal cover plate and a 1.6 mm thick side support plate. The crack then propagated in a brittle manner upward through the side plate, through the welds attaching the side plate to a 25 mm (1 in.) thick shell plate (ASTM A212, grade B steel), and continued for several millimeters in the shell plate before terminating. Other...
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Member Sign InLow-Temperature Brittle Fracture in a Steel Tank Car Because of Weld Imperfections, ASM Failure Analysis Case Histories: Rail and Rolling Stock, ASM International, 2019, https://doi.org/10.31399/asm.fach.rail.c0089716
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