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Published in: Tribology Letters 4/2020

01-12-2020 | Original Paper

Environment-Dependent Tribological Properties of Bulk Metallic Glasses

Authors: Morgan R. Jones, Andrew B. Kustas, Ping Lu, Michael Chandross, Nicolas Argibay

Published in: Tribology Letters | Issue 4/2020

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Abstract

The macroscale friction and wear properties of the Zr44Cu10Ni10Ti11Be25 metallic glass were investigated as a function of environmental oxygen concentration and contact force. We found remarkably low and predictable friction when both oxidation and frictional heating (that can lead to thermomechanically-driven crystallization) were supressed. Conversely, oxidation and the formation of a mixed metal-oxide layer was shown to increase the friction coefficient while significantly reducing wear rates. Depending on conditions, the wear rates ranged from values comparable to highly wear-resistant materials like polymer and 2D solid lubricant nanocomposites to those that are found with soft, pure, high-wear metals. These results reveal that the competition between material removal and the deformation-induced mixing of oxide particles can dramatically reduce wear rates, suggesting opportunities for optimization of tribological performance.

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Metadata
Title
Environment-Dependent Tribological Properties of Bulk Metallic Glasses
Authors
Morgan R. Jones
Andrew B. Kustas
Ping Lu
Michael Chandross
Nicolas Argibay
Publication date
01-12-2020
Publisher
Springer US
Published in
Tribology Letters / Issue 4/2020
Print ISSN: 1023-8883
Electronic ISSN: 1573-2711
DOI
https://doi.org/10.1007/s11249-020-01364-z

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