Wearing and Corrosion Resistance of TAMZ Alloy Implanted by Carbon Ion in Hank's Body Fluid

The wear ability and the corrosion resistance of TAMZ alloy implanted by carbon ions were investigated in Hank's body fluid. The results show that the uniformly modified layer formed by implanting carbon ion on TAMZ alloy surface is composed of TiC and Ti with carbon content of 1.07wt%. The thickness of the carbon ions implanted layer is 9 μm. Electrochemical test results indicate that the implanted alloy corrosion potentials and the charge transfer resistance are all increased, and the anodic polarization current density is decreased in Hank's body fluid. This is because the disordered carbide film is formed, which blocks the dissolution of alloying elements. In Hank's body fluid, the friction coefficient and the wear rate of the TAMZ alloy implanted by carbon ions are less than those of TAMZ matrix, but hardness is increased after implantation. In addition, the implanted alloy's anodic polarization current density is decreased and the charge transfer resistance is increased after friction. It means that the modified layer formed by implanting carbon ions has the excellent wear resistance and the corrosion resistance in a simulated human body fluid.