(1. 山东科技职业学院 机电工程系，潍坊 261053；
2. 有研亿金新材料股份有限公司，北京 102200；
3. 重庆理工大学 材料科学与工程学院，重庆 400054)
摘 要: 采用TE66微磨粒磨损实验机对外科植入材料Ti-Zr-Nb-Mo-Sn(TLM)钛合金在Hank’s模拟人体体液中的微磨粒磨损行为进行研究。通过正交实验结果可知：影响TLM钛合金微磨粒磨损行为的各因素的显著程度由高到低依次为料浆浓度、载荷、滑移速度、磨粒及滑移距离，并研究料浆浓度对TLM钛合金微磨损行为的影响。结果表明：不同载荷下，由于单位体积内的磨粒数量增加致使TLM钛合金的磨损体积随料浆浓度增加而增加；摩擦因数在微磨损-腐蚀共同作用下随料浆浓度增加先增加而后降低，主要是由于随着微磨损-腐蚀的进行，在摩擦副表面产生氧化膜或钝化膜，而这些膜具有一定的润滑作用致使摩擦因数降低；同时可得知在浓度相同时，载荷越大，摩擦因数越大。
关键字: TLM合金；微磨粒磨损；Hank’s溶液；腐蚀-磨损；外科植入
（1. Department of Mechanical and Electrical Engineering,
Shandong Vocational College of Science and Technology, Weifang 261053, China;
2. Grikin Advanced Materials Co., Ltd., Beijing 102200, China;
3. School of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400054, China）
Abstract:The micro-scale abrasive wear behavior of surgical implant material TLM alloy in Hank’s simulated body fluids (SBF) were studied by using the TE66 machine. The results of orthogonal experiments show that the impact importance extent, slurry concentration, load, sliding speed, abrasive and sliding distance impact the micro-scale abrasive wear behavior of medical material TLM alloy from high to low. Due to the abrasive amount of in unit volume increasing, the wear volume of TLM titanium alloy increases with increasing slurry concentration at different loads. And because of the oxide film or passivation coating was induced during the micro-abrasion and corrosion process, the friction coefficient increases, and then decreases with increasing slurry concentration. Under the same concentration, the greater the load is, the bigger the coefficient of friction is.
Key words: TLM alloy; micro-scale abrasive wear; Hank’s solution; corrosion; wear; surgical implants
