Galvanic Corrosion among Ti–6Al–4V ELI Alloy, Co–Cr–Mo Alloy, 316L-Type Stainless Steel, and Zr–1Mo Alloy for Orthopedic Implants

In orthopedics, occasionally, different types of metals are used in applications which they contact with each other. However, few studies have electrochemically investigated the galvanic corrosion orthopedic implants formed metals. this study, Ti–6Al–4V ELI alloy, Co–Cr–Mo and 316L type stainless steel, a newly developed Zr–1Mo alloy as low-magnetic susceptibility material was evaluated saline. Coupling alloys did not exhibit localized maintained highly stable passive films. steel temporary occurred. Similarly, coupling alloys, both were finally repassivated spontaneously immersion time. The degree smaller than that steel. No current observed when coupled. A slight flowed or coupled other alloys; however, recovered to zero after certain period owing repassivation. metal ions detected from couplings Zr–1Mo.