Online citations, reference lists, and bibliographies.
← Back to Search

Expanding The Homogeneous Regime Of Deformation In Bulk Metallic Glass By Electromigration-induced Rejuvenation

Q. Chen, M. Zhang, Jiachang Gu, Q. Cao, C. Zhang, X. Han, L. Li, W. Wang, L. Liu
Published 2020 · Materials Science

Save to my Library
Download PDF
Analyze on Scholarcy
The origin of plasticity in bulk metallic glasses (BMGs) is highly elusive due to their complicated amorphous atomic structures. Nonetheless, there is a general consensus that the homogeneous regime of deformation on the deformation map of BMGs is constrained by high temperature and low strain rate. Here we report an expanded homogeneous regime in a Zr55Cu30Al10Ni5 BMG, which is achieved by applying a pulsed electric current to the BMG specimen subjected to external loading. The BMG specimen exhibits homogeneous elongation and necking, rather than shear banding as it should without pulsed current. The results indicate that the pulsed current produces an additional effective “temperature increment” ∼0.15Tg (Tg, the glass transition temperature) apart from the Joule heating effect. This expanded homogeneous regime is attributed primarily to electromigration-induced dynamic rejuvenation which promotes homogeneously distributed deformation by enlarging the shear transformation zones. These findings could benefit understandings of plasticity in glassy materials. Homogeneous deformation in metallic glasses is facilitated by high temperature and low strain rate. Here, the window for homogeneous deformation is expanded by the application of a pulsed current during tensile loading of a Zr55Cu30Al10Ni5 metallic glass, attributed to dynamic rejuvenation.
This paper references
Recent advances on electromigration in very-large-scale-integration of interconnects
K. N. Tu (2003)
Deformation and flow of amorphous solids: Insights from elastoplastic models
Alexandre Nicolas (2018)
Newtonian flow of Zr55Cu30Al10Ni5 bulk metallic glassy alloys
A. Reger-Leonhard (2000)
The elastic properties, elastic models and elastic perspectives of metallic glasses
W. Wang (2012)
Grain Boundary-Mediated Plasticity in Nanocrystalline Nickel
Z. Shan (2004)
Atomic-Level Processes of Shear Band Nucleation in Metallic Glasses.
D. Şopu (2017)
Proximity of a metal-insulator transition in icosahedral phases of high structural quality.
Klein (1991)
On the evolution of free volume during the deformation of metallic glasses at high homologous temperatures
R. Ekambaram (2008)
Deformation-Mechanism Maps: The Plasticity and Creep of Metals and Ceramics
H. J. Frost (1982)
Full icosahedra dominate local order in Cu64Zr34 metallic glass and supercooled liquid
J. Ding (2014)
Super Plastic Bulk Metallic Glasses at Room Temperature
Y. Liú (2007)
Biased surface fluctuations due to current stress.
O. Bondarchuk (2007)
Liquid-glass transition, a free-volume approach
M. H. Cohen (1979)
Energy Storage in Metallic Glasses via Flash Annealing
Stefan Küchemann (2018)
Plastic deformation in metallic glasses
A. S. Argon (1979)
recent developments in theory, simulations, and experiments
T. C. Hufnagel (2016)
Visualizing the Electron Scattering Force in Nanostructures
C. Tao (2010)
Electromigration in ULSI interconnects
C. M. Tan (2007)
comparisons to metallic glass data
M. L. Falk (2004)
Electron-beam-assisted superplastic shaping of nanoscale amorphous silica
K. Zheng (2010)
Making glassy solids ductile at room temperature by imparting flexibility into their amorphous structure
Z. Fan (2018)
Dynamics of viscoplastic deformation in amorphous solids
M. Falk (1998)
Electromigration in ULSI Interconnections
C. Tan (2010)
A microscopic mechanism for steady state inhomogeneous flow in metallic glasses
F. Spaepen (1977)
Diffusion in Metallic Glasses and Supercooled Melts
F. Faupel (2000)
Mechanical behavior of amorphous alloys
C. Schuh (2007)
Homogeneous deformation of bulk metallic glasses
T. G. Nieh (2006)
Shear bands in metallic glasses
A. Greer (2013)
Deformation of metallic glasses: Recent developments in theory, simulations, and experiments
T. Hufnagel (2016)
Characterization of nanoscale mechanical heterogeneity in a metallic glass by dynamic force microscopy.
Y. Liu (2011)
A first report on deformation-mechanism maps
M. Ashby (1972)
Atomistic free-volume zones and inelastic deformation of metallic glasses.
J. Ye (2010)
insights from elastoplastic models
A. Nicolas (2018)
Thermal effects in the shear-transformation-zone theory of amorphous plasticity: comparisons to metallic glass data.
M. Falk (2004)
Observation of Atomic Diffusion at Twin-Modified Grain Boundaries in Copper
Kuan-Chia Chen (2008)
Dislocations in a simple cubic lattice
F. R. N. Nabarro (1947)
A universal criterion for plastic yielding of metallic glasses with a (T/Tg) 2/3 temperature dependence.
W. Johnson (2005)
Deformation behavior of the Zr41.2Ti13.8Cu12.5Ni10Be22.5 bulk metallic glass over a wide range of strain-rates and temperatures
J. Lu (2003)
Defective twin boundaries in nanotwinned metals.
Y. Wang (2013)
Deformation and flow in bulk metallic glasses and deeply undercooled glass forming liquids—a self consistent dynamic free volume model
W. Johnson (2002)
Electromigration in stressed thin films.
Tu (1992)
Mechanical Relaxation-to-Rejuvenation Transition in a Zr-based Bulk Metallic Glass
M. Zhang (2017)

Semantic Scholar Logo Some data provided by SemanticScholar