Abstract
In this study, contoured nanostripe (CNS) surfaces were fabricated and their friction properties were examined. First, shot blasting was carried out on stainless steel substrates to form shallowly and deeply dented substrates, which had random asperities. Next, multilayer films of Ag and Cu were deposited on each substrate, which was then polished to form contoured nanogrooves. The friction properties of the CNS surfaces were evaluated under lubricating conditions using a ball-on-plate-type reciprocating friction tester. Random asperities coated with Ag or Cu were also evaluated as reference. An Al2O3 ball was used as the counter specimen. The CNS surfaces were found to have low friction coefficients. In particular, the surface fabricated on the deeply dented substrate showed the highest durability, and CNS patterns clearly remained on this surface after the friction tests.
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