Hinge-type knee prosthesis wear tests with a mechanical load and corrosion properties monitoring

摘要

The primary goal was to compare model replacements with and without DLC layer. Components were made of the Ti6Al4V alloy and coated with a DLC layer, the sliding sleeve made of a PEEK polymer. Testing was done in the saline physiological solution (9 g/L NaCl). The measuring system was supplemented with the corrosion behavior monitoring. The results show that the applied DLC coating significantly increases the service life of the implant. Based on the results it is possible to state that an accurate mechanical load together with corrosion behavior monitoring shifts testing in the given field to a qualitatively higher level.