Structural evolution in copper layers during sliding under different lubricant conditions
Source abstract
Abstract
Friction and wear of copper rubbed in a wide range of loads and sliding velocities were studied. The results of friction and wear experiments in PAO-4 lubricant are presented as the Stribeck curve where the boundary, mixed and elasto-hydrodynamic lubrication regimes are considered. The structural state of surface layers in different lubricant regimes is studied by optical and scanning electron microscopy and X-ray photoelectron spectroscopy analyses. The dominant friction and wear mechanisms in different lubrication regimes are discussed. Severe plastic deformation of subsurface layers under friction is correlated with the nanocrystalline structure obtained by different methods of grain refinement.
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Research context
OpenAlex topics: Metal and Thin Film Mechanics · Advanced materials and composites · Force Microscopy Techniques and Applications
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References (28)
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