论文标题
波动会影响摩擦和磨损
Waviness affects friction and abrasive wear
论文作者
论文摘要
延长寿命并减少能耗，对磨料磨损的透彻了解至关重要。表面形貌复杂性对摩擦学行为的潜在至关重要的影响已经被掩盖，因为粗糙度和波浪性通常被认为是简单的标量数量。在这里，滑动轨道的完整波动曲线用于阐明表面地形对磨料磨损的影响。轴承钢销和磁盘以互动式泥浆作为界面培养基进行了摩擦学测试。已经发现，即使是较小的表面偏差（尽管最小化和控制）也可以显着增加摩擦系数 - 高达91％。摩擦波动不仅与磁盘的初始波动性曲线密切相关，而且这些小波动与不均匀分布的高磨损相关。
To prolong lifetime and reduce energy consumption, a thorough understanding of abrasive wear is essential. The potentially crucial influence of surface topography intricacies on tribological behavior have been obscured, since roughness and waviness are often considered simple scalar quantities. Here, the complete waviness profile of the sliding track was used to shed light on the influence of surface topography on abrasive wear. Bearing steel pins and disks were tribologically tested with Al2O3-based slurries as interfacial medium. It was found that even small surface deviations (albeit minimized and controlled for) can significantly increase the friction coefficient - up to 91 %. Not only are frictional fluctuations strongly correlated with the disks' initial waviness profile, these small fluctuations correlate with unevenly-distributed high wear.
