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Assessment of wrought ASTM F1058 cobalt alloy properties for permanent surgical implants

✍ Scribed by Clerc, Claude O. ;Jedwab, Michael R. ;Mayer, David W. ;Thompson, Paul J. ;Stinson, Jonathan S.

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 63 KB
Volume: 38
Category: Article
ISSN: 0021-9304
DOI: 10.1002/(sici)1097-4636(199723)38:3<229::aid-jbm7>3.0.co;2-r

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✦ Synopsis

The behavior of the ASTM F1058 wrought cobalt-chromium-nickel-molybdenum-iron alloy (commonly referred to as Elgiloy or Phynox) is evaluated in terms of mechanical properties, magnetic resonance imaging, corrosion resistance, and biocompatibility. The data found in the literature, the experimental corrosion and biocompatibility results presented in this article, and its long track record as an implant material demonstrate that the cobalt superalloy is an appropriate material for permanent surgical implants that require high yield strength and fatigue resistance combined with high elastic modulus, and that it can be safely imaged with magnetic resonance.

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## Abstract A Co‐Ni‐Cr‐Ti precipitation hardening alloy is evaluated for use as a surgical implant alloy. Static and fatigue strength studies indicate that the alloy is equivalent, or superior to, present implant alloys. __In vitro__ and __in vivo__ corrosion studies indicate that the material has