The corrosion behavior of Ti-Zr-alloy for bio materials implants in simulation body fluid ringer lactate solution evaluation by electrochemical methods.

The corrosion behavior binary Ti-Zr alloys for bio material implant in simulation body fluid ringer lactate solution by electrochemical methods have been conducted. The alloys composition for these studies are Ti-xZr (x=0,5,10,15). This Ti-Zr alloys were synthesized by using a Single Arc Melting Furnace with an atmospheric environment of argon gas ultrahigh purity (UHP). After melting, the Ti-Zr alloys were characterization by optical microscope, X-Ray Diffraction and Scanning Electron Microscope (SEM) and micro hardness Vickers examination. The corrosion behavior of the Ti-Zr alloys were examination by electrochemical method in a simulation body fluid ringer lactate solution. The results showed that the microstructure of Ti-Zr were in the form of paralel plate and dendritic microstructure with the addition of Zircomium. XRD results showed that the Ti-Zr alloys contain of α-Ti phase. The hardness of the alloys increases with increases of Zircomium content in the alloys. The hardness of the Ti-xZr (x=5,10,15) were 449,500, and 625 respectively. The corrosion rate of Ti-Zr alloys decreased with the addition of chromium in the binary alloy of Ti-Zr alloys. The corrosion rate Ti-xZr (x=5,10,15) alloys ringer lactate solution at different zirconium composition are 2.996,1.285 and 0.745 mpy, respectively. [ABSTRACT FROM AUTHOR]