Registration Number
0221U101141,
0120U101737
, R & D reports
Title
Development of technology for surface modification of titanium components of friction pairs of artificial joints
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Head
Pohreliuk Iryna M., Доктор технічних наук
Registration Date
15-01-2021
Organization
Karpenko Physico-Mechanical Institute of NASU
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It was determined that thermodiffusion saturation of commercially pure titanium BT1-0 by nitrogen increases its efficiency in the friction pair with ultrahigh molecular weight polyethylene (UHMWPE) by one to two orders of magnitude. It was shown that the use of a step-by-step regime of nitriding with subsequent polishing of the nitrided surface of titanium BT1-0 for surface hardening allows to decrease the wear of the UHMWPE component by more than two orders of magnitude and the friction coefficient by 6 times. It was determined that regularities of Н/Е change depending on the nitriding regime of titanium correlate with the value of wear of UHMWPE component in the friction pair of nitrided titanium BT1-0/UHMWPE, so they can be used for express evaluation of the efficiency of tribocoupling. It was determined that the technology of surface treatment of spherical head of titanium for endoprosthesis of the hip joint allows to obtain the hinge joint nitrided titanium BT1-0/UHMWPE, the resource of which exceeds the resource of the pair Со-Сr-Мо/UHMWPE.
Product Description
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Maletsʹ Mykhaylo M
Pohreliuk Iryna M.
Proskurnyak Roman V
Tkachuk Oleh V
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2021-01-15
