Shearing Fracture of a Type 316LR Stainless Steel Screw Available to Purchase
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Published:2019
Abstract
During the internal fixation, the type 316LR stainless steel cortical bone screw failed. Extensive spiral deformation was revealed by the fracture surface. Dimple structure characteristic of a ductile failure mode was observed with dimples oriented uniformly in the deformation direction. A zone of heavily deformed grains at the fracture edge was revealed by longitudinal metallographic examination. The shearing fractures of a commercially pure titanium screw and a cast cobalt-chromium-molybdenum alloy were discussed for purpose of comparison.
Shearing Fracture of a Type 316LR Stainless Steel Screw, ASM Failure Analysis Case Histories: Medical and Biomedical Devices, ASM International, 2019, https://doi.org/10.31399/asm.fach.med.c0048403
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