The size-dependent non-localized deformation in a metallic alloy. (May 2015)

• Record Type: Journal Article
• Authors: Zhong, C.; Zhang, H.; Cao, Q.P.; Wang, X.D.; Zhang, D.X.; Jiang, J.Z.
• Is Part Of: Scripta materialia. Volume 101(2015)
• Page Start: 48
• Page End: 51
• Publication Date: 2015-05
• Subjects: Metallic glass -- Molecular dynamic simulation -- Tensile behavior -- Size effect; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2015.01.015
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract : The tensile behaviors of Cu50 Zr50 metallic glass (MG) films with the same cooling history as a function of film thickness are systematically studied by molecular dynamics simulations. It clearly reveals that with decreasing film thickness, a transition from the localized deformation to the non-localized deformation indeed occurs in Cu50 Zr50 MG films, which might be a general phenomenon for all MGs. The thickness-dependent deformation mode change observed here, is then reasonably explained by the Griffith crack-propagation criterion.