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中文摘要：
采用牛关节软骨与不锈钢摩擦副在人工膝关节模拟运动试验机上进行模拟膝关节运动的摩擦学试验研究,探讨载荷和时间对摩擦磨损行为的影响并分析其作用机理,同时对软骨表面进行分析.结果表明：随着载荷从640增至1 000 N,牛软骨表面磨痕的宽度和深度均增大;在同样载荷下,随着模拟运动时间从20增至60 min,牛软骨表面磨痕的宽度和深度增大.软骨磨损表面的磨痕和破损表面检测有铁元素的存在,表明不锈钢材料在摩擦过程中发生转移.试验后得到的磨粒包括长条形的金属磨粒和圆形的软骨成分磨粒.
英文摘要：
The tribological behavior of bovine articular cartilage against stainless steel was evaluated by using an artificial knee joint simulation test bench in knee simulated motion.The influences of load and time on the tribological behavior of friction pair were investigated,and their worn surface was analyzed.The results showed that the width and depth of cracks in cartilage surface increased with the increase of the load from 640 to 1 000 N.When time increased from 20 minutes to 1 h,the width and depth of cracks in cartilage surface increased.Iron was observed on the worn surface of articular cartilage,indicating the material transfer.There were two kinds of wear particles,including metal wear particle in long strip shape and wear particle of cartilage composition in round shape.
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