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首页> 外文期刊>Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear >Tribocorrosion of passive metals in the mixed lubrication regime: theoretical model and application to metal-on-metal artificial hip joints
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Tribocorrosion of passive metals in the mixed lubrication regime: theoretical model and application to metal-on-metal artificial hip joints

机译：混合润滑条件下钝态金属的摩擦腐蚀：理论模型及其在金属对金属人工髋关节中的应用

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摘要

Wear is a key problem limiting the lifetime and performance of total hip arthroplasty. The synovial fluid, acting as lubricant, can alleviate the wear of implants but also introduces corrosion. The interaction of mechanical wear and electrochemical corrosion, nominally tribocorrosion, has been proposed as one of the crucial degradation mechanisms of implants and recently saw significant progress in mechanistic understanding and modeling. This study presents a predictive wear model based on a mechanistic approach of tribocorrosion and lubrication and taking into account clinical relevant parameters such as normal load, velocity and clearance. Predicted wear rate corresponds well to the running-in wear rate from simulator experimental results and allows to identify the dominating wear mechanism and to evaluate the influence of several parameters. (C) 2014 Elsevier B.V. All rights reserved.
机译：磨损是限制全髋关节置换术寿命和性能的关键问题。滑液作为润滑剂，可以减轻植入物的磨损，但也会引起腐蚀。机械磨损和电化学腐蚀（名义上为摩擦腐蚀）的相互作用已被提出作为植入物的关键降解机理之一，最近在机理理解和建模方面取得了重大进展。这项研究提出了一种基于摩擦腐蚀和润滑的机械方法的预测磨损模型，并考虑了与临床相关的参数，例如法向载荷，速度和间隙。预测的磨损率与模拟器实验结果中的磨合磨损率非常吻合，可以识别主要的磨损机理并评估几个参数的影响。 （C）2014 Elsevier B.V.保留所有权利。

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