Abstract
Ti6Al4V is used in a wide variety of engineering applications and extensively in orthopaedics implants because of the excellent combination of the high specific strength and superior corrosion resistance. However, Ti6Al4V possesses poor tribological properties. The present work investigated the effect of reciprocating sliding speed on tribocorrosion properties of Ti6Al4V alloy under cathodic and open circuit potentials in simulated body fluid. The results showed a strong influence of the sliding speed on the microstructure of the worn surfaces and consequently on the wear rate under tested conditions. The wear rate at low sliding speeds was an order of magnitude lower compared to that at the faster sliding speed. Synergistic and antagonistic behaviour was strongly associated with the sliding speed.
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