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http://hdl.handle.net/10397/104305
| Title: | Stick-slip dynamics in a Ni₆₂Nb₃₈ metallic glass film during nanoscratching | Authors: | Han, DX Wang, G Ren, JL Yu, LP Yi, J Hussain, I Song, SX Xu, H Chan, KC Liaw, PK |
Issue Date: | 1-Sep-2017 | Source: | Acta materialia, 1 Sept 2017, v. 136, p. 49-60 | Abstract: | Stick-slip dynamics during nanoscratching is investigated for the Ni62Nb38 metallic glass. Detrended fluctuation analysis is introduced to explore the influence of loading force on the temporal scaling and stick-slip behavior. The self-similar characteristics and complexity in the temporal scale of the lateral force signal are investigated. A modified Cauchy class model is used for the stochastic stick-slip process, which connects the fractal dimension and the Hurst exponent and features the positive correlation process. The confidence intervals of the differential friction coefficient at different loading forces elucidate the inhomogeneous (and homogeneous) shear-branching processes during the nanoscratching process. | Keywords: | Fractal dimension Metallic glass film Nanoscratching Self-similar behavior Stick-slip dynamics |
Publisher: | Acta Materialia Inc | Journal: | Acta materialia | ISSN: | 1359-6454 | EISSN: | 1873-2453 | DOI: | 10.1016/j.actamat.2017.06.061 | Rights: | © 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ The following publication Han, D. X., Wang, G., Ren, J. L., Yu, L. P., Yi, J., Hussain, I., Song, S. X., Xu, H., Chan, K. C., & Liaw, P. K. (2017). Stick-slip dynamics in a Ni62Nb38 metallic glass film during nanoscratching. Acta Materialia, 136, 49–60 is available at https://doi.org/10.1016/j.actamat.2017.06.061. |
| Appears in Collections: | Journal/Magazine Article |
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| Chan_Stick-slip_Dynamics_Metallic.pdf | Pre-Published version | 1.93 MB | Adobe PDF | View/Open |
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