Characterisation of the oxide film on the taper interface from retrieved large diameter metal on polymer modular total hip replacements
Characterisation of the oxide film on the taper interface from retrieved large diameter metal on polymer modular total hip replacements
Many metal joint failures have been associated with adverse local tissue reactions due to the response of the body to wear debris and corrosion products, released from the bearing surfaces or the taper interfaces. It is believed that the oxide film on the CoCrMo alloy is playing an important role on the corrosion resistance, however, there is a lack of quantitative data on this aspect. In the present study, detailed analysis of the surface layer on the taper interfaces is provided using advanced electron microscopies. Two retrieved taper interfaces were analysed. The taper interface varies along the length of the tapers. Site-specific FIB/TEM cross-sections from different regions all show evidence of the oxide film and the carbonaceous layer, separately or mixed. HRTEM results showed the oxide film had porous texture and EELS confirmed the film was chromium oxide.
CoCrMo, taper interfaces, TEM, EELS
1-11
Zeng, P.
1b581a2a-0125-4fa9-81a0-5b0aedaf7d99
Rainforth, W.M.
b9c1d1e5-ba6b-4856-8b62-03e38688358b
Cook, R.B.
06f8322d-81be-4f82-9326-19e55541c78f
16 December 2014
Zeng, P.
1b581a2a-0125-4fa9-81a0-5b0aedaf7d99
Rainforth, W.M.
b9c1d1e5-ba6b-4856-8b62-03e38688358b
Cook, R.B.
06f8322d-81be-4f82-9326-19e55541c78f
Zeng, P., Rainforth, W.M. and Cook, R.B.
(2014)
Characterisation of the oxide film on the taper interface from retrieved large diameter metal on polymer modular total hip replacements.
Tribology International, .
(doi:10.1016/j.triboint.2014.12.012).
Abstract
Many metal joint failures have been associated with adverse local tissue reactions due to the response of the body to wear debris and corrosion products, released from the bearing surfaces or the taper interfaces. It is believed that the oxide film on the CoCrMo alloy is playing an important role on the corrosion resistance, however, there is a lack of quantitative data on this aspect. In the present study, detailed analysis of the surface layer on the taper interfaces is provided using advanced electron microscopies. Two retrieved taper interfaces were analysed. The taper interface varies along the length of the tapers. Site-specific FIB/TEM cross-sections from different regions all show evidence of the oxide film and the carbonaceous layer, separately or mixed. HRTEM results showed the oxide film had porous texture and EELS confirmed the film was chromium oxide.
Text
Taper surface metallurgy paper.pdf
- Accepted Manuscript
More information
Accepted/In Press date: 7 December 2014
Published date: 16 December 2014
Keywords:
CoCrMo, taper interfaces, TEM, EELS
Organisations:
nCATS Group
Identifiers
Local EPrints ID: 373533
URI: http://eprints.soton.ac.uk/id/eprint/373533
ISSN: 0301-679X
PURE UUID: e5478fa3-2ef2-4871-8195-b39edb45aa0a
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Date deposited: 21 Jan 2015 12:49
Last modified: 15 Mar 2024 03:34
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Author:
P. Zeng
Author:
W.M. Rainforth
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