Composition and grain size effects on the structural and mechanical properties of CuZr nanoglasses

S Adibi, PS Branicio, YW Zhang, SP Joshi - Journal of Applied Physics, 2014 - pubs.aip.org
Nanoglasses (NGs), metallic glasses (MGs) with a nanoscale grain structure, have the
potential to considerably increase the ductility of traditional MGs while retaining their …

Direct experimental evidence of nano-voids formation and coalescence within shear bands

Y Shao, GN Yang, KF Yao, X Liu - Applied Physics Letters, 2014 - pubs.aip.org
Fracture mechanisms of metallic glasses are fundamentally different from that of crystalline
alloys. Nano-voids formation and coalescence inside shear bands were believed to be one …

On the origin of softening in the plastic deformation of metallic glasses

M Zhang, Y Chen, W Li - International Journal of Plasticity, 2019 - Elsevier
In the plastic deformation of amorphous materials, dilatation occurs universally with
softening. However, the critical question that whether softening is caused by dilatation or not …

On the characteristic length scales associated with plastic deformation in metallic glasses

P Murali, YW Zhang, HJ Gao - Applied Physics Letters, 2012 - pubs.aip.org
Atomistic simulations revealed that the spatial correlations of plastic displacements in three
metallic glasses, FeP, MgAl, and CuZr, follow an exponential law with a characteristic length …

Probing the role of Johari–Goldstein relaxation in the plasticity of metallic glasses

M Zhang, Y Chen, RG He, SF Guo, J Ma… - Materials Research …, 2019 - Taylor & Francis
Johari–Goldstein (JG) relaxation closely relates to the shear transformation zones (STZs) in
the flow of metallic glasses (MGs). However, the actual role played by JG relaxation in the …

Deformation processes in an amorphous nanometer-sized metallic particle

F Delogu - Physical Review B—Condensed Matter and Materials …, 2008 - APS
Molecular dynamics simulations have been employed to investigate the mechanical
response to a uniaxial compression of an amorphous alloy particle with a radius of 5 nm …

Structure evolution of bulk Zr60Cu20Pd10Al10 amorphous alloy during rolling deformation

PN Zhang, JF Li, Y Hu, YH Zhou - Journal of materials science, 2008 - Springer
Abstract Bulk Zr 60 Cu 20 Pd 10 Al 10 amorphous alloy was rolled at room temperature up to
96% reduction in thickness without fracture. The changes of microstructure and hardness …

Characterization of open volume regions in a simulated Cu-Zr metallic glass

A Bharathula, W Luo, W Windl, KM Flores - Metallurgical and Materials …, 2008 - Springer
Optimizing the structural reliability of bulk metallic glass (BMG) components demands a
detailed understanding of the atomic structure of the glass, particularly the defects that …

Nano-and micro-indentation studies on lithium borate–barium bismuth niobate glasses

K Das, C Karthik, KBR Varma, U Ramamurty - Journal of non-crystalline …, 2008 - Elsevier
The structure and mechanical properties of multifunctional lithium tetra-borate based
glasses and glass–ceramics of the system (100− x) Li2B4O7− x (BaO–Bi2O3–Nb2O5) with …

Icosahedral coordination and atomic rearrangements in deformed metallic glasses

F Delogu - Acta materialia, 2011 - Elsevier
Numerical simulations were employed to explore local atomic rearrangements taking place
in metallic glasses undergoing shear deformation. The study focuses in particular on …