采用双层辉光等离子渗金属技术在TC4钛合金表面制备渗锆层，研究了渗锆层的显微组织、相组成以及摩擦磨损性能，并与 TC4钛合金基体的摩擦磨损性能进行了对比.结果表明：TC4钛合金表面的渗锆层厚度约为10μm；渗锆层的组织连续、均匀、致密，与基体结合良好，锆含量由表层向基体内部呈梯度分布；渗锆层的摩擦因数和比磨损率约为TC4钛合金基体的45．9％和13．6％，摩擦磨损性能明显提高.
Zr-alloyed layer was prepared on TC4 titanium alloy surface by using the double glow plasma alloying technique.The microstructure,phase component and friction and wear properties of the layer were studied, and the friction and wear properties of Zr-alloyed layer were compared with that of TC4 titanium alloy substrate. The results show that the thickness of Zr-alloyed layer on TC4 titaniuim alloy was about 10 μm.The Zr-alloyed layer was continuous,uniform and compact,and well combined with the substrate.The content of Zr in Zr-alloyed layer exhibited gradient distribution from the surface to substrate.The friction coefficient and specific wear rate of Zr-alloyed layer were 45.9% and 13.6% of that of TC4 titanium alloy substrate,friction and wear properties of Zr-alloyed layer was higher than that of TC4 titanium alloy substrate.
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