The advantages and challenges of nanotribologyTuesday (27.09.2016) 15:15 - 15:30 Part of:
In engineering macroscale applications, tribology is the collective interaction of the microasperities of those two metals that are in contact and move relative to each-other. We use a nanoindenter with a micrometer sized asperity to simulate the contact of microasperities and to fundamentally understand friction, wear and microstructure evolution. This contribution investigates the deformation due to single and multi-stroke friction experiments of a diamond tip on metal [1,2] or fused silica surfaces . We will compare the observed mechanisms to those commonly observed in macroscale laboratory experiments and macroscale applications. Additionally, we quantify the plastic and elastic deformation in comparison to nanoindentation. For austenite steel, we investigates the details of abrasion and crack formation. Using the fused silica data, we verify the friction experiments and the influence of the experimental setup. We give guidelines for best practice and identify the boundaries of tribology research with a nanoindenter.
 S. Brinckmann, C.A.C. Fink, G. Dehm, Nanotribology in austenite: Normal force dependence, Wear, dx.doi.org/10.1016/j.wear.2015.04.023 (2015)
 S. Brinckmann, G. Dehm, Nanotribology in austenite: plastic plowing and crack formation, Wear, dx.doi.org/10.1016/j.wear.2015.05.001 (2015)
 S. Brinckmann, G. Dehm, Friction experiments with a nanoindenter: applicability and challenges, (submitted)
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