Results 41 to 50 of about 155,930 (300)

Understanding the deformation mechanism of individual phases of a ZrTi-based bulk metallic glass matrix composite using in situ diffraction and imaging methods [PDF]

open access: yes, 2014
The plasticity of a ZrTi-based bulk metallic glass composite consisting of glassy matrix and crystalline dendritic phase was studied in-situ under identical tensile loading conditions using scanning electron microscopy and synchrotron X-ray diffraction ...
Connolley, Thomas   +3 more
core   +2 more sources

Coarse-grained description of localized inelastic deformation in amorphous metals [PDF]

open access: yes, 2009
The sequence of shear transformation events that lead to a shear band transition in amorphous metals is described by a spatially random coarse-grained model calibrated to obey the thermodynamic scaling relations that govern flow in a real glass.
Konrad Samwer   +3 more
core   +1 more source

Interface Instability in Shear-Banding Flow [PDF]

open access: yesPhysical Review Letters, 2006
We report on the spatio-temporal dynamics of the interface in shear-banding flow of a wormlike micellar system (cetyltrimethylammonium bromide and sodium nitrate in water) during a start-up experiment. Using the scattering properties of the induced structures, we demonstrate the existence of an instability of the interface between bands along the ...
Lerouge, Sandra   +2 more
openaire   +3 more sources

Structural mechanisms of formation of adiabatic shear bands [PDF]

open access: yesFracture and Structural Integrity, 2016
The paper focuses on the experimental and theoretical study of plastic deformation instability and localization in materials subjected to dynamic loading and high-velocity perforation.
Mikhail Sokovikov   +6 more
doaj   +2 more sources

Deformation-driven catalysis of nanocrystallization in amorphous Al alloys

open access: yesBeilstein Journal of Nanotechnology, 2016
Nanocrystals develop in amorphous alloys usually during annealing treatments with growth- or nucleation-controlled mechanisms. An alternative processing route is intense deformation and nanocrystals have been shown to develop in shear bands during the ...
Rainer J. Hebert   +3 more
doaj   +1 more source

Shear bands in granular flow through a mixing length model [PDF]

open access: yes, 2007
We discuss the advantages and results of using a mixing-length, compressible model to account for shear banding behaviour in granular flow. We formulate a general approach based on two function of the solid fraction to be determined.
A. Santomaso   +9 more
core   +1 more source

Shear band dynamics from a mesoscopic modeling of plasticity

open access: yes, 2010
The ubiquitous appearance of regions of localized deformation (shear bands) in different kinds of disordered materials under shear is studied in the context of a mesoscopic model of plasticity.
Bulatov V V   +12 more
core   +1 more source

Deformation Microstructure And Texture Transformations In FCC Metals Of Medium-To-High Stacking Fault Energy: Critical Role Of Micro- And Macro-Scale Shear Bands

open access: yesArchives of Metallurgy and Materials, 2015
Microstructure and texture development in medium-to-high stacking fault energy face centred cubic metals were investigated in order to examine the role of lattice re-orientation on slip propagation across grain boundaries and to characterize the ...
Paul H., Miszczyk M. M.
doaj   +1 more source

Shear banding in metallic glasses described by alignments of Eshelby quadrupoles [PDF]

open access: yes, 2017
Plastic deformation of metallic glasses performed well below the glass transition temperature leads to the formation of shear bands as a result of shear localization.
Hieronymus-Schmidt, Vitalij   +3 more
core   +2 more sources

Shear band mediated microstructure in an accumulative roll bonded α-brass alloy during strain path changes and annealing

open access: yesJournal of Materials Research and Technology
Strain path changes of the accumulative roll bonded 90Cu–10Zn brass and its influence on the shear band structure is the aim of the present study. The effect of post-annealing was also studied in terms of shear bands and texture development.
Mohammad Reza Toroghinejad   +2 more
doaj   +1 more source

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