Key factors of deformation mechanism of Cu-Ag alloy
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Date
2022
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Access Rights
info:eu-repo/semantics/closedAccess
Abstract
This work focused on the effect of the structural order and dimensionality on the deformation mechanism of Cu-Ag alloy and the triggering factors of this mechanism. It is revealed that (i) the weakness of the system develops from bulk to nanoscale and crystalline to amorphous systems, (ii) Cu-Ag nanowires are more flexible than their bulk counterparts, (iii) crystalline Cu-Ag alloys are stiffer than amorphous systems. The reason for early yielding and less stiffness of amorphous Cu-Ag nanowire with respect to bulk material is the less fraction of ideal icosahedra. Cu atoms are a key factor to characterize the mechanical response of both amorphous Cu-Ag alloys. While there are two different deformation modes in crystalline systems, the only mode observed in the amorphous alloy is homogeneous deformation. The presence of (0,5,2,x) (x = 5,6) polyhedral is the reason for the transition of deformation from homogeneous to inhomogeneous in the crystalline Cu-Ag alloys.
Description
Keywords
Molecular Dynamics Simulations, Tensile Deformation, Embedded Atom Method, Cu-Ag Alloy, Deformation Transition, Strength, Voronoi Tessellation, Metallic-Glass, Strength, Behavior, Order, Microstructure, Simulation, Dynamics, Phases
Journal or Series
Journal Of Non-Crystalline Solids
WoS Q Value
Q1
Scopus Q Value
Q2
Volume
576
