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首页> 外文期刊>Tribology International >Experimental and submodeling technique to investigate the wear of silicon nitride against Ti6Al4V alloy with bio-lubricants for various gait activities
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Experimental and submodeling technique to investigate the wear of silicon nitride against Ti6Al4V alloy with bio-lubricants for various gait activities

机译：实验和子模型技术研究各种步态活动的生物润滑剂对Ti6Al4V合金的氮化硅磨损

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摘要

The present work focused on analyzing the wear and friction coefficients of Si3N4 against titanium alloy grade 5 material using ball-on-disc tribometer for a sliding distance of 20 km with five different bio-lubricants. Later using finite element submodeling technique, post implantation wear is predicted for 2 years considering four different gait activities which includes normal walking, stairs down 25 kg, carrying 25 kg and lifting 40 kg. The friction coefficient value is found to be least for sesame oil. The increase in percentage difference in friction coefficients for phosphate buffer saline (PBS), distilled water, Ringer's solution and saline solution are 77.27%, 81.81%, 84.09% and 86.36% when compared with sesame oil. The percentage difference in reduction in wear coefficients for sesame oil, saline solution, Ringer's solution and PBS are 36.49%, 48.81%, 56.11% and 84.36%. The linear and volumetric wear is found to be quite low for all gait activities for PBS bio-lubricant. Overall the least linear and volumetric wear are obtained for normal walking gait activity followed by Stair down 25 kg, Carrying 25 kg and Lifting 40 kg gait activity.
机译：本工作的重点是使用球形盘摩擦计分析Si3N4对钛合金5级材料的磨损和摩擦系数，用于含有五种不同的生物润滑剂20公里的滑动距离。后来使用有限元子模型技术，考虑到四种不同的步态活动，预测植入后磨损2年，包括正常行走，楼梯下台25公斤，携带25千克，升降40公斤。发现摩擦系数值至少适用于芝麻油。与芝麻油相比，磷酸盐缓冲盐水（PBS），蒸馏水，林格氏溶液和盐水溶液的摩擦系数摩擦系数差异增加77.27％，81.81％，84.09％和86.36％。芝麻油，盐溶液，林格溶液和PBS的磨损系数减少的百分比差异为36.49％，48.81％，56.11％和84.36％。对于PBS生物润滑剂的所有步态活动，发现线性和体积磨损非常低。整体而言，对于正常的行走步态活动，可以获得最小的线性和体积磨损，然后楼梯下降25公斤，携带25kg并提升40kg步态活动。

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