title: Applicability of Macroscopic Wear and Friction Laws on the Atomic Length Scale.
abstract: Using molecular dynamics, we simulate the abrasion process of an atomically rough Fe surface with multiple hard abrasive particles. By quantifying the nanoscopic wear depth in a time-resolved fashion, we show that Barwell's macroscopic wear law can be applied at the atomic scale. We find that in this multiasperity contact system, the Bowden-Tabor term, which describes the friction force as a function of the real nanoscopic contact area, can predict the kinetic friction even when wear is involved. From this the Derjaguin-Amontons-Coulomb friction law can be recovered, since we observe a linear dependence of the contact area on the applied load in accordance with Greenwood-Williamson contact mechanics.
authors.affiliation: Austrian Center of Competence for Tribology, AC2T research GmbH, Viktor-Kaplan-Straße 2, 2700 Wiener Neustadt, Austria.
authors.forename: S J
authors.initials: SJ
authors.lastname: Eder
authors.affiliation: Austrian Center of Competence for Tribology, AC2T research GmbH, Viktor-Kaplan-Straße 2, 2700 Wiener Neustadt, Austria.|Institute of Applied Physics, Vienna University of Technology, Wiedner Hauptstraße 8-10/134, 1040 Vienna, Austria.
authors.forename: G
authors.initials: G
authors.lastname: Feldbauer
authors.affiliation: Austrian Center of Competence for Tribology, AC2T research GmbH, Viktor-Kaplan-Straße 2, 2700 Wiener Neustadt, Austria.
authors.forename: D
authors.initials: D
authors.lastname: Bianchi
authors.affiliation: Austrian Center of Competence for Tribology, AC2T research GmbH, Viktor-Kaplan-Straße 2, 2700 Wiener Neustadt, Austria.
authors.forename: U
authors.initials: U
authors.lastname: Cihak-Bayr
authors.affiliation: Institute of Applied Physics, Vienna University of Technology, Wiedner Hauptstraße 8-10/134, 1040 Vienna, Austria.
authors.forename: G
authors.initials: G
authors.lastname: Betz
authors.affiliation: Austrian Center of Competence for Tribology, AC2T research GmbH, Viktor-Kaplan-Straße 2, 2700 Wiener Neustadt, Austria.|Institute of Applied Physics, Vienna University of Technology, Wiedner Hauptstraße 8-10/134, 1040 Vienna, Austria.
authors.forename: A
authors.initials: A
authors.lastname: Vernes