2014
Volume 14, Number 1/2, pp. 11-17
On the effectiveness of commercially pure titanium–chirulen endoprosthetic friction pairs
S.E. Sheykin,1 I.M. Pohrelyuk2 and A.G. Mamalis3
1 Bakul Institute for Superhard Materials, National Academy of Sciences of the Ukraine, Kiev
2 Karpenko Physico-Mechanical Institute of the National Academy of Sciences of the Ukraine, Lviv
3 Project Center for Nanotechnology and Advanced Engineering, NCSR "Demokritos", Athens, Greece
The methods and results of tribological testing nitrided commercially pure titanium–chirulen (ultrahigh molecular weight polyethylene) friction pairs of hip-joint endoprostheses are reported. The structure, composition and roughness of the surface layer after thermal-diffusion nitriding are discussed. It has been found that the tribological characteristics of the nitrided commercially pure titanium-chirulen endoprosthetic friction pair compare well with those of zirconium ceramics-chirulen pairs.
Keywords: ceramic-plastic friction pair, hip-joint endoprostheses, metal-plastic friction pair, tribological characteristics