Running-in and micropitting behaviour of steel surfaces under mixed lubrication conditions
Running-in and micropitting behaviour of steel surfaces under mixed lubrication conditions
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DOI：
10.1016/j.triboint.2016.03.007
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发表时间：
2016-09-01
影响因子：
6.2
通讯作者：
Evans, H. P.
中科院分区：
文献类型：
--
作者：
Clarke, A.;Weeks, I. J. J.;Evans, H. P.
本文研究了淬硬钢表面在混合润滑条件下的磨合。成对的表面的相同和不同的硬度一起加载在滚动/滑动条件下，在一个双盘钻机，和表面形貌的演变进行了研究，使用原位轮廓术。粗糙度参数，高度分布和轮廓重新定位的评估表明，这些表面的磨合是一个快速的过程中，最突出的粗糙尖端在初始加载周期进行塑性变形。最后，这对硬度相等的圆盘，在一系列单独的实验中进一步运行后，被发现患有微点蚀。这种微点蚀主要发生沿着突出的凸体的尖端，并讨论了跑合和表面失效之间的潜在联系。(C)2016年6月，作者。爱思唯尔有限公司出版
The paper investigates the running-in of hardened steel surfaces under mixed lubrication conditions. Pairs of surfaces of both equal and differing hardness were loaded together under rolling/sliding conditions in a twin-disk rig, and the evolution of surface topography was investigated using in-situ profilometry. Evaluation of roughness parameters, height distributions and profile relocation showed that the running-in of these surfaces is a rapid process where the most prominent asperity tips undergo plastic deformation during the initial loading cycles. Finally, the pair of equal hardness disks, following further running in a separate series of experiments, was found to suffer from micro-pitting. This micropitting predominantly occurred along the tips of prominent asperities, and the potential link between running-in and surface failure is discussed. (C) 2016 The Authors. Published by Elsevier Ltd.