Corrosion behavior of cast and forged cobalt-based alloys for double-alloy joint endoprostheses

Journal of Biomedical Materials Research
P Süry, M Semlitsch

Abstract

An ideal combination of mechanical and corrosion properties of long-term implants such as joint endoprostheses has yet to be found. Besides being resistant to pitting and crevice attack, which can lead to corrosion fatigue and stress corrosion cracking failures, the implant material must be highly resistant to wear and abrasion. Two cobalt-based alloys, wrought CoNiMoTi and air-cast CoCrMo, were subjected to a number of selected in vitro electrochemically and chemically accelerated corrosion tests in chloride-containing solutions with wrought AISI-316L used as a reference alloy. A limited number of immersion tests in FeCl3 and acidified FeCl3 solutions were also conducted. It is found that the mechanical properties of wrought CoNiCrMoTi alloy qualify it as a substitute for cast CoCrMo alloy and wrought AISI-316L in anchorage shaft production for all types of joint endoprostheses. Wrought CoNiCrMoTi has a higher resistance to fatigue cracking compared with cast CoCrMo and is as resistant to selective corrosion phenomena such as stress corrosion cracking.

References

Mar 1, 1975·Journal of Biomedical Materials Research·T M Devine, J Wulff

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Citations

Jul 1, 1980·Medical & Biological Engineering & Computing·M Semilitsch, H G Willert
Mar 29, 2001·Injury·A Marti
Mar 5, 2010·Journal of the Royal Society, Interface·Bhairav PatelArash Angadji
Jan 1, 1979·Biomaterials, Medical Devices, and Artificial Organs·A CornetJ H Jaeger
Oct 24, 2012·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Shu YangIbrahim S Jawahir
Aug 1, 1986·Scandinavian Journal of Dental Research·G Ravnholt
Sep 1, 1980·Journal of Dentistry·D BrownH J Wilson
Jul 27, 2010·The Journal of Vascular Access·Micah R Chan, Alexander S Yevzlin
Jan 1, 1988·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·S A BrownK Merritt
Jun 2, 2007·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·A W HodgsonS Virtanen
Jan 1, 1989·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·M Semlitsch
Oct 29, 2019·ACS Applied Materials & Interfaces·Asghar ShiraniDiana Berman

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