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Optimizing Bulk Metallic Glasses for Robust, Highly Wear-Resistant Gears

Hofmann, Douglas C. and Andersen, Laura M. and Kolodziejska, Joanna and Roberts, Scott N. and Borgonia, John-Paul and Johnson, William L. and Vecchio, Kenneth S. and Kennett, Andrew (2017) Optimizing Bulk Metallic Glasses for Robust, Highly Wear-Resistant Gears. Advanced Engineering Materials, 19 (1). Art. No. 1600541. ISSN 1438-1656.

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Despite their promising mechanical properties and ability to be manufactured like plastics, bulk metallic glasses (BMGs) are slow to emerge as a structural engineering material. Because BMGs properties are highly correlated with processing, it is necessary to test them in a relevant engineering application. In the current work, CuZr-based BMGs are developed with excellent wear performance when used as gears. It is shown that in order to optimize the wear performance of these gears, toughness should be maximized. This contrasts the conventional design strategy, where wear performance increases with increasing hardness. Finally, a new low-cost manufacturing method for casting net-shaped macroscale gears is developed.

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Additional Information:© 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. Issue online: 24 January 2017; Version of record online: 4 October 2016; Manuscript Revised: 1 September 2016; Manuscript Received: 29 July 2016.
Issue or Number:1
Record Number:CaltechAUTHORS:20170206-082047697
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Official Citation:Hofmann, D. C., Andersen, L. M., Kolodziejska, J., Roberts, S. N., Borgonia, J.-P., Johnson, W. L., Vecchio, K. S. and Kennett, A. (2017), Optimizing Bulk Metallic Glasses for Robust, Highly Wear-Resistant Gears . Adv. Eng. Mater., 19: n/a, 1600541. doi:10.1002/adem.201600541
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:74059
Deposited By: Tony Diaz
Deposited On:06 Feb 2017 17:34
Last Modified:03 Oct 2019 16:34

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