Ti-6Al-4V (TC4) has received increasing attention as biomaterial but also raised concerns about the long-term safety of releasing of metal ions and poor wear resistance. In this work, an ZrO₂/TiO₂ alloyed layer was prepared on TC4 by plasma surface alloying with Zr and subsequently annealed in the air for improved corrosion and wear resistant. To assess the corrosion performance of the alloyed layer, the specimens were measured by open circuit potential, electrochemical impedance spectroscopy and potentiodynamic polarization in simulated body fluid solution. The result shows that the ZrO₂/TiO₂ alloyed layer exhibits strikingly high polarization resistance, wide passive region and very low current density, indicating the excellent corrosion resistance. The layer also displays significant improvement of wear resistance. Furthermore, the alloyed layer restricts cell adhesion and spreading. We infer that the ZrO₂/TiO₂ alloyed layer might be potentially useful implanted devices such as biosensors, bioelectronics or drug delivery devices.

Ti-6Al-4V（TC4）作为生物材料受到越来越多的关注，但也引起人们对释放金属离子的长期安全性和较差的耐磨性的担忧。在这项工作中，通过与Zr进行等离子表面合金化，在TC4上制备了ZrO ₂ / TiO ₂合金层，然后在空气中进行退火，以改善腐蚀和耐磨性。为了评估合金层的腐蚀性能，通过在模拟体液溶液中的开路电势，电化学阻抗谱和电位动力学极化对样品进行了测量。结果表明，ZrO ₂ / TiO ₂合金层具有极高的抗极化性，较宽的无源区和非常低的电流密度，表明具有极好的耐腐蚀性。该层还显示出耐磨性的显着改善。此外，合金层限制了细胞粘附和扩散。我们推断ZrO ₂ / TiO ₂合金层可能是潜在有用的植入设备，例如生物传感器，生物电子学或药物输送设备。