Comprehensive Electrochemical Study of Biomedical Materials

This aim of this study is to provide a comprehensive examination of the electrochemical behavior of various biomedical materials in a common form with similar processing methods. Wire products comprising seventeen alloys and conditions at 0.762mm (0.030”) diameter have been tested per the ASTM International Standard F 2129 – Standard Test Method for Conducting Cyclic Potentiodynamic Polarization Measurements to Determine the Corrosion Susceptibility of Small Implant Devices. Tests were conducted in phosphate buffered saline solution at 37°C. Materials tested include: 302, 304V, 316LVM, 420, 455, 470, FWM1058®, MP35N®, 35N LT®, L-605, Nitinol (four surface finish conditions), Cp Ti Gr 1, Ti-6Al-4V ELI, 35N LT-DFT®-41Ag. Comparative results, graphs and tabular summaries are provided to serve as a reference for the medical device designer.