Registration Number
0220U101700,
0119U101614
, R & D reports
Title
Development of technology for surface modification of titanium components of friction pairs of artificial joints
popup.stage_title
Head
Pohreliuk Iryna M., Доктор технічних наук
Registration Date
18-02-2020
Organization
Karpenko Physico-Mechanical Institute of NASU
popup.description2
Scientific and technical principles of cold surface plastic deformation of spherical parts and thermodiffusion nitriding of spherical heads of technically pure titanium BT1-0 for endoprosthesis of the hip joint have been developed. It is shown that pre-cold surface plastic deformation provides an increase in the level of surface hardening, which is reflected in the displacement of the microhardness distribution curves along the intersection of the surface hardened layers in the region of higher hardness values. It was found that the microhardness of the surface layer of 20 μm thickness, formed after the combined treatment, is 1.3-1.4 times higher than after nitriding. Increasing the degree of deformation hardening contributes to the microhardness of the nitrided layer. It has been found that a higher gradient of microhardness of the strengthened nitrided surface layer is formed during the accumulation in liquid nitrogen than for the accumulation in air.
Product Description
popup.authors
Pohreliuk Iryna M.
Proskurnyak Roman V.
Tkachuk Оleg V.
popup.nrat_date
2020-04-02
