FRACTURE PROPERTIES OF TITANIUM BONE IMPLANTS CORRODED BY SIMULATED BODY FLUID
Abstract
Titanium has been widely used for medical implants and restorations due to its excellent osseointegration, corrosion resistance, biocompatibility in biological fluids, and high resistance/weight ratio. The aim of this paper is to determine the fracture properties of two bone implants of a hip prosthesis made from commercially pure titanium and Ti-6Al-4V titanium alloy. Both bone implants were before fracture mechanics testing corroded by simulated body fluid. The presence of different microstructures along the pre-crack fatigue front has significant effects on the critical crack tip opening displacement (CTOD). The CTOD values were calculated in accordance with standard ASTM E1290-08e1. This value can be the relevant parameter for the safe servicing of hip prostheses.
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References
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