Fatigue Life Prediction of Titanium Specimens With TiO2 Surface

Abstract: Most of mechanical components in the engineering are frequently subjected to multiaxial loading, which also applies to medical engineering. The cyclic-loading can lead to sudden fatigue failure. In present work the fatigue life of cylindrical titanium components made from titanium alloy Grade 23 is studied. This type of material is often used for dental implants. The surface treatment is used to improve biocompatibility of implants. The preferred surface treatment is titanium dioxide deposition. Contrary to well known surface layers used in industry whose main task improvement of resistance to the fatigue, corrosion and wear, the goal of deposition is to improve acceptability of implants by human body and the surface treatment can even reduce fatigue resistance. This reduction of fatigue resistance is undesirable. This problem leads engineers to find optimal solution