Running-in and micropitting behaviour of steel surfaces under mixed lubrication conditions

被引：69

作者：

Clarke, A. ^{[1
]}

Weeks, I. J. J. ^{[1
]}

Snidle, R. W. ^{[1
]}

Evans, H. P. ^{[1
]}

机构：

[1] Cardiff Univ, Cardiff Sch Engn, Cardiff, S Glam, Wales

来源：

TRIBOLOGY INTERNATIONAL | 2016年 / 101卷

基金：

英国工程与自然科学研究理事会;

关键词：

Running-in; Mixed lubrication; Roughness; CONTACTS;

D O I：

10.1016/j.triboint.2016.03.007

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

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.

引用

页码：59 / 68

页数：10

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