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

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

Abstract 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 frict...

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Bibliographic Details
Main Authors: S. J. Kang, K. T. Rittgen, S. G. Kwan, H. W. Park, R. Bennewitz, A. Caron
Format: Article
Language:English
Published: SpringerOpen 2017-03-01
Series:Friction
Subjects:
metallic glasses
surface oxide
friction
wear
nanotribology
atomic force microscopy
Online Access:http://link.springer.com/article/10.1007/s40544-017-0149-7
Description
Summary:Abstract 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.
ISSN:2223-7690
2223-7704

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