Abstract
The application of solid lubricants offers high potential in terms of resource-efficiency in contacts under relative motion. The disadvantage of this lubrication method is the high risk of interface failure after the coating has been worn. In order to predict the service life of coated surfaces, it is necessary to determine the microscopic wear behaviour by analysing the coating hardness and coefficient of friction (CoF). Due to layer thicknesses under 3 µm, these parameters can only be determined using nanoindents and nano-scratch-tests. These tests require a transfer of material properties and tribological parameters from the nano to the micro level. The transfer method to the micro level and validity of the values determined at the nano level is presented while also describing challenges due to different influences of the respective size level. Additionally, oscillating sliding tests are carried out to determine the friction properties during sliding, which correspond to reference tests performed on the micro level.
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Heimes, N. et al. (2021). Investigation of the Scaling of Friction Coefficients from the Nano to the Micro Level for Base Materials and Coatings. In: Behrens, BA., Brosius, A., Hintze, W., Ihlenfeldt, S., Wulfsberg, J.P. (eds) Production at the leading edge of technology. WGP 2020. Lecture Notes in Production Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-62138-7_17
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DOI: https://doi.org/10.1007/978-3-662-62138-7_17
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