@article{1dac418e6452491ba4976e62eeb9dc86,
title = "Manipulation of free volumes in a metallic glass through Xe-ion irradiation",
abstract = "The origin of the deformation in metallic glasses is attributed to rearrangements of atoms in some structurally weak spots behaving as flow units, which are associated with free volumes. In the present study, Xe-ion beam is used to manipulate the free-volume fraction, and influence on the mechanical behavior of a Zr-based metallic glass. The irradiation at low dosages can change the structure by increasing the free volume, and by homogenising the distribution of free volume. The increase in the free-volume fraction is equivalent to the increase in the deformation temperature, thus resulting in the decrease in the yield strength. The analysis of stochastic strain burst size in the metallic glass irradiated at different dosages indicates that the strain burst depends on the yield strength and homogeneity of the glassy phase. The results of this study highlight the fact that the quantitative manipulation of the homogeneity and the amount of free volumes can be achieved through low-dose ion irradiation, which can modify the mechanical behavior of metallic glasses.",
keywords = "Free volume manipulation, In-situ tension, Irradiation, Metallic glasses, Micro-pillar compression",
author = "Bian, {X. L.} and G. Wang and Chen, {H. C.} and L. Yan and Wang, {J. G.} and Q. Wang and Hu, {P. F.} and Ren, {J. L.} and Chan, {K. C.} and N. Zheng and A. Teresiak and Gao, {Y. L.} and Zhai, {Q. J.} and J. Eckert and J. Beadsworth and Dahmen, {K. A.} and Liaw, {P. K.}",
note = "Funding Information: The work described in this paper was supported by grants from the MOST (No. 2015CB856804 ), NSF of China (Nos. 51171098 , 51222102 and 11271339 ), the RGC of the Hong Kong ( Nr. PolyU511211 ), the Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning. PKL appreciates the financial support from the US National Science Foundation ( DMR-0909037 , CMMI-0900271 , and CMMI-1100080 ), the Department of Energy (DOE), Office of Nuclear Energy's Nuclear Energy University Program (NEUP) 00119262 , and the DOE, Office of Fossil Energy, National Energy Technology Laboratory ( DE-FE-0008855 and DE-FE-0024054 ), and the U.S. Army Research Office Project ( W911NF-13-1-0438 ) with C. Huber, C.V. Cooper, D. Finotello, A. Ardell, E. Taleff, V. Cedro, R. Dunst, R.O. Jensen, L. Tan, S.N. Mathaudhu, and S. Lesica as contact monitors. KAD and PKL thank DOE for support through project FE0011194 with the project managers, S. Markovich and D. Sterr. LY appreciates the strategic priority research program of TMSR ( XDA02040100 ), and the China–Australia Joint Research Project ( 2014DFG60230 ). Publisher Copyright: {\textcopyright} 2016 Acta Materialia Inc.",
year = "2016",
month = mar,
doi = "10.1016/j.actamat.2016.01.002",
language = "English (US)",
volume = "106",
pages = "66--77",
journal = "Acta Materialia",
issn = "1359-6454",
publisher = "Elsevier Limited",
}