(1. 山東科技職業(yè)學(xué)院 機電工程系，濰坊 261053；
2. 有研億金新材料股份有限公司，北京 102200；
3. 重慶理工大學(xué) 材料科學(xué)與工程學(xué)院，重慶 400054)
摘 要: 采用TE66微磨粒磨損實驗機對外科植入材料Ti-Zr-Nb-Mo-Sn(TLM)鈦合金在Hank’s模擬人體體液中的微磨粒磨損行為進(jìn)行研究。通過正交實驗結(jié)果可知：影響TLM鈦合金微磨粒磨損行為的各因素的顯著程度由高到低依次為料漿濃度、載荷、滑移速度、磨粒及滑移距離，并研究料漿濃度對TLM鈦合金微磨損行為的影響。結(jié)果表明：不同載荷下，由于單位體積內(nèi)的磨粒數(shù)量增加致使TLM鈦合金的磨損體積隨料漿濃度增加而增加；摩擦因數(shù)在微磨損-腐蝕共同作用下隨料漿濃度增加先增加而后降低，主要是由于隨著微磨損-腐蝕的進(jìn)行，在摩擦副表面產(chǎn)生氧化膜或鈍化膜，而這些膜具有一定的潤滑作用致使摩擦因數(shù)降低；同時可得知在濃度相同時，載荷越大，摩擦因數(shù)越大。
關(guān)鍵字: TLM合金；微磨粒磨損；Hank’s溶液；腐蝕-磨損；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
