钛基-TiN-TiC系梯度薄膜材料的生物摩擦磨损特性研究

Studies on Properties of Biofriction and Wear of Ti Matrix-TiN-TiC Gradient Film Materials

在SRV试验机上用血清润滑对钛合金及钛基 -TiN-TiC梯度薄膜与UHAMWPE摩擦副摩擦磨损性能进行了测试与比较 ,并对其磨损机理进行了分析。研究结果表明 ,钛基 -TiN -TiC梯度薄膜材料表面硬度得到提高 ,达到 2 6 3 0Hv ,与基体结合强度提高到 5 .8kg/cm2 ,有很好的承载能力和抗剥离能力 ,生物耐磨性明显提高 ,为发展耐磨性好的人工关节材料探索了一条新的途径。

Properties of biofriction and wear and the wear mechanism of friction pairs of Ti6Al4V,Ti matrix-gradient film materials including Ti6Al4V-TiN,Ti6Al4V-TiN-TiCN,Ti6Al4V-TiN-TiC etc.with UHMWPE in serum lubrication at 37℃ have been studied.It has been shown that the Ti6Al4V-TiN-TiC gradient film material possesses highest hardness among other Ti matrix-gradient film materials,and its hardness reaches 2630Hv.Its adhesive strength to Ti substrate is higher,5.8kg/cm2.Its surface is able to suffer load,to resist peeling and resist wear.It is a new kind of artifical joint materials.