Abstract
Abstract The frictional behaviour of a hip prosthesis head fabricated from Ti-5%Al-2.5%Fe alloy in contact with an ultrahigh molecular weight polyethylene cup was investigated. It was shown that the frictional behaviour of a head coated with an oxide layer about 1–3 μm thick produced by induction heating of the surface is equal to that of a head fabricated from alumina ceramic. The oxide layer was still present after 107 cycles under maximum loads of 4000 and 3200 N in 0.9% NaCl solution. Examination of the microstructure of the oxide layer after testing showed that it was unchanged by the friction test under overload service conditions. The different oxidation layers on the α and β phases could still be observed. Therefore the production of such oxide layers on titanium and titanium alloy implants which are locally stressed by friction during service is recommended.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
