Journal
TRIBOLOGY INTERNATIONAL
Volume 121, Issue -, Pages 148-160Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2018.01.050
Keywords
Cylinder liner; Two-process surfaces; Coefficient of friction; Surface topography; Low temperature
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The experiments were carried out using an Optimol SRV5 oscillating wear tester under lubrication. Specimens were cut from gray cast iron cylinder liners honed and/or plateau honed with diamond or ceramic stones. Counter-specimens were cut from chromium-coated compression ring. Short time tests of 30 min duration were conducted at a temperature of -20 degrees C, with a stroke of 3 nun. In addition, for a few sliding assemblies, durations of tests at the low temperature were extended to 24 h. For comparison, similar tests for a smaller number of sliding pairs were carried out at a temperature of 80 degrees C. Before and after tests cylinder liner surface topographies were measured by a white light interferometer Talysurf CCI Lite. It was found that the changes of liner height and frictional resistance at the low temperature were smaller from those tested at the elevated temperature. Two process textures tested at the low temperature led to a smaller final coefficient of friction, compared to one process surfaces; opposed results were obtained at the high temperature.
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