Surface Modification of Ti6Al4V by Plasma Copper and Nickel Alloying Process

摘要:

利用等离子表面合金化技术对Ti6Al4V表面进行Cu/Ni合金化处理, 采用SEM研究了温度对合金层微观结构的影响, 采用GDS和XRD对合金层的成分和相组成进行测试。结果表明，850 ℃制备的合金层与基体冶金结合，厚度约7 μm，主要由Ti, Ti2Ni, TiNi, Cu0.81Ni0.19 和 CuTi相组成。抗菌结果表明，合金化试样在12 h内展现了优良的抗菌性能。表面合金层也显著提高了钛合金的耐磨性能

Abstract:

Plasma surface copper and nickel alloying was applied to Ti6Al4V alloy. The effects of treatment temperatures on the microstructures were investigated by scanning electron microscope (SEM). The chemical composition and phase constituents of the alloyed layer were analyzed using glow discharge spectrum (GDS) and X-ray diffraction (XRD). The results show that the alloyed layer prepared at 850 oC with about 7 μm in thickness is bonded strongly to the Ti6Al4V substrate and consists of unbound Ti, Ti2Ni, TiNi, Cu0.81Ni0.19 and CuTi. The results indicate that the treated samples exhibit excellent antibacterial properties within 12 h. The wear resistance of titanium alloy is also improved.