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ASM Failure Analysis Case Histories: Medical and Biomedical Devices
ASM Failure Analysis Case Histories

ASM Failure Analysis Case Histories: Medical and Biomedical Devices

ASM International
DOI:
https://doi.org/10.31399/asm.fach.med.9781627082266
ISBN electronic:
978-1-62708-226-6
Publication date:
2019
Book Chapter

Retrieved Bone Screw Made From Co-Cr-Mo Alloy with Casting Defects

Doi:
https://doi.org/10.31399/asm.fach.med.c0089543
  • Published:
    2019

Abstract

Threads of a bone screw (Co-Cr-Mo alloy, type ASTM F75) had broken off, and other threads had cracked. 15x sectioning showed porosity, and 155x magnification showed gas holes, segregation, and dissolved oxides. This supports the conclusion that manufacturing defects caused the failure.

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Citation

Retrieved Bone Screw Made From Co-Cr-Mo Alloy with Casting Defects, ASM Failure Analysis Case Histories: Medical and Biomedical Devices, ASM International, 2019, https://doi.org/10.31399/asm.fach.med.c0089543

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