The purpose of this study was to evaluate the basic corrosion properties of conventional CoCr (ASTM F 1537, UNS R31537), Gas Atomized Dispersion Strengthened (GADS) CoCr (ASTM 1537, UNS R31539), Ti6Al4V ELI (ASTM F 136, UNS R56401) and Ti-12Mo-6Zr-2Fe (TMZF) (ASTM F 1813) alloys that are used in joint replacement applications. Test coupon samples made from alloys' wrought bar stocks were polished then tested. Each material had 4 groups (n33) that were tested in 4 aqueous solutions: 1) pH 7.4, 2) pH 5, 3) pH 2, and 4) pH 2 with 1 M of H2O2. Potential dynamic polarization was conducted using a Princeton Applied Research VMC Potentiostat, with an Ag/AgCl electrode as the reference electrode, and it resembled method in ASTM F 2129-08. The samples were evaluated with Scanning Electron Microscope (SEM).Introduction:
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