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http://hdl.handle.net/10397/12496
Title: | Temperature dependent dynamics transition of intermittent plastic flow in a metallic glass. I. Experimental investigations | Authors: | Liu, ZY Wang, G Chan, KC Ren, JL Huang, YJ Bian, XL Xu, XH Zhang, DS Gao, YL Zhai, QJ |
Issue Date: | 2013 | Source: | Journal of applied physics, 2013, v. 114, no. 3, 33520, p. 033520-1-033520-8 | Abstract: | Cooling shrinkage can increase the atomic packing density of metallic glasses, which can influence their elastic and plastic behaviour. In the present study, the compressive deformation behaviour of a Zr-based metallic glass at temperatures well below the glassy transition temperature, say 123 K to room temperature, is experimentally revealed. The elastic modulus and the shear modulus at different temperatures are measured to elucidate the yield strength changes with temperature according to the model of shear transformation zones. In the plastic regime, based on the SEM observation and the digital scattering correlation method, an enhanced interaction between the elastic shear strain fields initiated by neighbouring shear bands is discussed, which explains the amplitude of serration events decreasing with the temperature decreasing. | Publisher: | American Institute of Physics | Journal: | Journal of applied physics | ISSN: | 0021-8979 | EISSN: | 1089-7550 | DOI: | 10.1063/1.4815943 | Rights: | © 2013 AIP Publishing LLC. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Z. Y. Liu et al., J. Appl. Phys. 114, 033520 (2013) and may be found at https://dx.doi.org/10.1063/1.4815943 |
Appears in Collections: | Journal/Magazine Article |
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