Park, Kyoung-Won Fleury, Eric Seok, Hyun-Kwang Kim, Yu-Chan 2024-01-20T16:33:12Z 2024-01-20T16:33:12Z 2021-09-05 2011-08 0966-9795 https://pubs.kist.re.kr/handle/201004/130127 To clarify the difference in the plasticity of metallic glasses observed experimentally under tension and compression, the changes in the structural state induced during the deformation of Cu65Zr35 glassy alloy were analyzed by means of molecular dynamics (MD) simulation. Although mechanical responses were distinct, no clear difference was detected in the change in the short-range order of the deformed structures, except for the intensive collapse of the (0,3,6,4) bonding in the elastic regime seen in the extended sample. To explain the difference in the plasticity and particularly the brittleness of bulk metallic glass (BMG) in the tensile mode, we examine the degree of strain localization and discuss the role of normal stress on the activation of shear transformation zones (STZs) during tension and compression in the elastic regime. (C) 2011 Elsevier Ltd. All rights reserved. English ELSEVIER SCI LTD SHEAR LOCALIZATION ICOSAHEDRAL ORDER DUCTILITY DYNAMICS Deformation behaviors under tension and compression: Atomic simulation of Cu65Zr35 metallic glass Article 10.1016/j.intermet.2011.03.024 1 INTERMETALLICS, v.19, no.8, pp.1168 - 1173 INTERMETALLICS 19 8 1168 1173 scie scopus 000292179500011 2-s2.0-79957625292 Chemistry, Physical Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Chemistry Materials Science Metallurgy & Metallurgical Engineering Article SHEAR LOCALIZATION ICOSAHEDRAL ORDER DUCTILITY DYNAMICS Glasses metallic Brittleness and ductility Fracture mode Yield stress Simulations atomistic