Abstract
We fabricated contoured nanostripe (CNS) surface consisting of Cr and Cu multilayer films having a contour like grooves by wet blasting. Depth of nanoscale grooves (nanogrooves) on the substrate is 60 to180 nm. The friction tests at a constant load were carried out using an Al ball under a lubricating condition. The CNS substrate having dense nano-grooves showed the lowest wear. The substrate having nano-grooves showed good lubricating properties. Durability of CNS surface probably depended on interfacial strength between films. The friction loop showed that the CNS surface had locally friction reduction properties.
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