An approximation of tribological behavior of Ti$_{1 - x}$Al$_{x}$N coatings against animal bone in ringer's solution
Keywords:
Sliding wear, PVD coatings, corrosion wear, biological aspectsAbstract
Due to their excellent properties, Ti-Al-N coatings have become attractive for biomedical applications. In this paper, friction and wear properties of Ti$_{1 - x}$Al$_{x}$N films having various aluminum contents, $x$, have been studied. Adhesion was measured by the scratch test technique; friction was carried out by a pin-on-disk tribometer using an animal bone-pin as counterpart and Ringer's solution as simulated body fluid; and wear mechanisms were identified by SEM and EDS. It was found that the coating with $x$ = 0.41 exhibited the highest COF, conserves its integrity as a coating, and causes the lowest wear on the bone in Ringer's solution.Downloads
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