Abstract The abrasive wear behavior of elastomers has attracted a lot of attention and interest in order to better comprehend its effect on the service performance of the fluid sealing pairs. The objective of this work was to study the tribological performance of the fluid sealing pairs under various abrasive concentration conditions. Therefore, this study developed an abrasive wear test experiment for an acrylonitrile–butadiene rubber (NBR) cylinder against 316L stainless steel plate tribo-pairs to evaluate reciprocating sliding tests under different particle concentrations. Results demonstrate that the abrasives feature strong aggressivity, which impedes the formation of a good friction-reduction water film, results in weak lubrication, changes the friction coefficient and wear rate, and deteriorates the tribological performance of the tribo-pairs. The friction coefficients of the low abrasive concentration are relatively small, and the friction coefficient increases with increasing abrasive concentration. At different abrasive concentrations and sizes, the rubber matrix is attacked in various forms by the hard particles, which appear as pinning, particle agglomeration embedment, and abrasive flow erosion. Particle concentration affects the damage behavior of the tribo-pairs, and the particles easily enter the interface of the tribo-pairs when their concentration is high.

中文翻译：

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污染水润滑条件下颗粒浓度对NBR密封副摩擦学性能的影响

摘要 弹性体的磨粒磨损行为引起了广泛的关注和兴趣，以更好地理解其对流体密封副使用性能的影响。这项工作的目的是研究流体密封副在各种磨料浓度条件下的摩擦学性能。因此，本研究针对 316L 不锈钢板摩擦副开发了丙烯腈 - 丁二烯橡胶 (NBR) 气缸的磨料磨损试验实验，以评估不同颗粒浓度下的往复滑动试验。结果表明，磨料具有很强的侵蚀性，阻碍了良好的减摩水膜的形成，导致润滑弱，改变了摩擦系数和磨损率，并降低摩擦对的摩擦学性能。低磨料浓度的摩擦系数较小，随着磨料浓度的增加，摩擦系数增大。在不同的磨料浓度和尺寸下，橡胶基体受到硬颗粒的各种形式的攻击，表现为钉扎、颗粒团聚嵌入和磨料流侵蚀。粒子浓度影响摩擦对的损伤行为，当粒子浓度高时，粒子很容易进入摩擦对的界面。橡胶基体受到硬颗粒的各种形式的攻击，表现为钉扎、颗粒团聚嵌入和磨料流侵蚀。粒子浓度影响摩擦对的损伤行为，当粒子浓度高时，粒子很容易进入摩擦对的界面。橡胶基体受到硬颗粒的各种形式的攻击，表现为钉扎、颗粒团聚嵌入和磨料流侵蚀。粒子浓度影响摩擦对的损伤行为，当粒子浓度高时，粒子很容易进入摩擦对的界面。