骨科植入物金属材料生物摩擦腐蚀研究进展

发布时间：2018-04-25 22:21

本文选题：骨科植入物 + 金属材料　；参考：《摩擦学学报》2017年01期

【摘要】：骨科植入物的生物摩擦腐蚀耦合行为对人工假体使用寿命有重要影响.本文作者概述了生物摩擦腐蚀耦合行为研究的试验方案和主要分类,其中按照摩擦方式不同,可将其分为磨粒磨损腐蚀、微动腐蚀、滑动(摩擦)腐蚀、模拟器仿真(摩擦)腐蚀等类型,分析了影响该行为的主要因素,包括摩擦、电化学、材料和溶液因素等.通过调研国内外文献,综述了钛合金、钴铬钼合金和不锈钢三种主要金属材料在微动腐蚀、滑动摩擦腐蚀和模拟器摩擦腐蚀三类损伤模式下的研究现状.接着介绍了钝化膜去除、磨屑颗粒产生和金属离子释放过程,以及摩擦腐蚀耦合损伤机理.最后总结未来应在假体真实工作环境模拟和再现、有机物(如白蛋白)等人体体液中特有物质对植入物耦合行为影响和其他假体如人工椎间盘生物摩擦腐蚀等三个方面开展深入研究.
[Abstract]:The biotribological corrosion coupling behavior of orthopedic implants has an important effect on the life of artificial prosthesis. In this paper, the authors summarize the experimental schemes and main classification of the coupling behavior of biological friction corrosion. According to the different friction modes, they can be divided into abrasive wear corrosion, fretting corrosion, sliding (friction) corrosion. The simulator simulates the corrosion (friction) and analyzes the main factors affecting the behavior, such as friction, electrochemistry, material and solution, etc. The research status of titanium alloy, cobalt-chromium-molybdenum alloy and stainless steel in fretting corrosion, sliding friction corrosion and simulator tribological corrosion is reviewed. Then the passivating film removal, debris generation and metal ion release are introduced, as well as the coupled damage mechanism of friction corrosion. Finally, we conclude that the real working environment of prosthesis should be simulated and reproduced in the future. The effects of organic compounds (such as albumin) on implant coupling behavior and other prostheses such as artificial disc biotribological corrosion were deeply studied.
【作者单位】：深圳清华大学研究院生物医用材料及植入器械重点实验室;清华大学机械工程系;清华大学摩擦学国家重点实验室;
【基金】：中国博士后科学基金(2016T90802) 广东省自然科学基金(2016A030310028) 深圳市基础研究项目(JCYJ20160309153506046)~~
【分类号】：R318.08;R687

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