On the origin of shear banding instability in metallic glasses

MQ Jiang, LH Dai - Journal of the Mechanics and Physics of Solids, 2009 - Elsevier
To uncover the physical origin of shear-banding instability in metallic glass (MG), a
theoretical description of thermo-mechanical deformation of MG undergoing one …

Toughness enhancement and heterogeneous softening of a cryogenically cycled Zr–Cu–Ni–Al–Nb bulk metallic glass

BS Li, S Xie, JJ Kruzic - Acta Materialia, 2019 - Elsevier
In this study, as-cast and cold-rolled Zr 63.78 Cu 14.72 Ni 10 Al 10 Nb 1.5 bulk metallic glass
(BMG) samples were subjected to 20, 70, 120, and 170 cryogenic thermal cycles prior to …

Fe-based bulk metallic glass matrix composite with large plasticity

SF Guo, L Liu, N Li, Y Li - Scripta Materialia, 2010 - Elsevier
Using alloy design, an Fe77Mo5P9C7. 5B1. 5 bulk metallic glass matrix composite
reinforced by in situ formed ductile α-Fe dendrites has been developed. In contrast to the …

Relaxation processes and physical aging in metallic glasses

B Ruta, E Pineda, Z Evenson - Journal of Physics: Condensed …, 2017 - iopscience.iop.org
Since their discovery in the 1960s, metallic glasses have continuously attracted much
interest across the physics and materials science communities. In the forefront are their …

Manipulation of free volumes in a metallic glass through Xe-ion irradiation

XL Bian, G Wang, HC Chen, L Yan, JG Wang, Q Wang… - Acta Materialia, 2016 - Elsevier
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 …

Brittle to ductile transition in densified silica glass

F Yuan, L Huang - Scientific reports, 2014 - nature.com
Current understanding of the brittleness of glass is limited by our poor understanding and
control over the microscopic structure. In this study, we used a pressure quenching route to …

Signature of viscous flow units in apparent elastic regime of metallic glasses

Z Wang, P Wen, LS Huo, HY Bai, WH Wang - Applied Physics Letters, 2012 - pubs.aip.org
We characterize and identify the flow units in two typical metallic glasses (MGs), which have
markedly different β-relaxation behaviors and mechanical properties. The viscoelastic …

Energy dissipation in fracture of bulk metallic glasses via inherent competition between local softening and quasi-cleavage

MQ Jiang, Z Ling, JX Meng, LH Dai - Philosophical Magazine, 2008 - Taylor & Francis
Compression, tension and high-velocity plate impact experiments were performed on a
typical tough Zr41. 2Ti13. 8Cu10Ni12. 5Be22. 5 (Vit 1) bulk metallic glass (BMG) over a wide …

Correlation between relaxations and plastic deformation, and elastic model of flow in metallic glasses and glass-forming liquids

WH Wang - Journal of Applied Physics, 2011 - pubs.aip.org
We study the similarity and correlations between relaxations and plastic deformation in
metallic glasses (MGs) and MG-forming liquids. It is shown that the microscope plastic …

Gradient nanostructure, phase transformation, amorphization and enhanced strength-plasticity synergy of pure titanium manufactured by ultrasonic surface rolling

L Lei, Q Zhao, Y Zhao, C Wu, S Huang, W Jia… - Journal of Materials …, 2022 - Elsevier
In this study, ultrasonic surface rolling process (USRP) was used to fabricate a gradient
nanostructured commercial pure titanium. The site-specific microstructure, refining …