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Importance of surface oxide for the tribology of a Zr-based metallic glass

  • Thermally grown surface oxide layers dominate the single-asperity tribological behavior of a Zr60Cu30Al10 glass. Increase in oxidation time leads to an increased contribution of shearing and a corresponding decreased contribution of ploughing to friction. This change in the dominating friction and wear mechanism results in an overall minor decrease of the friction coefficient of oxidized surfaces compared to the metallic glass sample with native surface oxide. Our results demonstrate the importance of creating a stable oxide layer for practical applications of metallic glasses in micro-devices involving sliding contact.

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Document Type:Article
Author:S. J. Kang, Kai T. Rittgen, S. G. Kwan, H. W. Park, Roland BennewitzORCiD, Arnaud Caron
Parent Title (English):Friction
First Page:115
Last Page:122
Year of first Publication:2017
Release Date:2022/08/31
Tag:friction; metallic glasses; nanotribology; surface oxide; wear
Impact:01.869 (2017)
Research Groups:Interactive Surfaces
DDC classes:500 Naturwissenschaften und Mathematik / 530 Physik
Open Access:Open Access
Signature:INM 2017/021
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International