Results 51 to 60 of about 998 (119)
Deformation Behavior of Ti48Zr18V12Cu5Be17 Semi-Solid Amorphous Composites
CrystalsIn the light of increasing research into amorphous composites and their applications, as-cast specimens of multicomponent Ti48Zr18V12Cu5Be17 amorphous composites were prepared via water-cooled copper mold suction casting.
Xinhua Huang +5 more
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Nanocrystalline Phase Formation inside Shear Bands of Pd-Cu-Si Metallic Glass
Advances in Materials Science and Engineering, 2014 Pd77.5Cu6Si16.5 metallic glass was prepared by fluxing treatment and water quenching method. To avoid possible artifacts, shear bands were created by indentation after TEM sample preparation.
Yang Shao, Guannan Yang, Kefu Yao
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Geophysical Research Letters, 2018 Omega bands are curved aurora forms that evolve from a quiet arc located along the poleward edge of a diffuse auroral band within the midnight to morningside auroral oval. They usually propagate eastward. Because omega bands are a significant contributor
Jiang Liu +7 more
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Finite width of quasistatic shear bands [PDF]
Physical Review E, 2008 I study the average deformation rate of an amorphous material submitted to an external uniform shear strain rate, in the geometry known as the split-bottom configuration. The material is described using a stochastic model of plasticity at a mesoscopic scale.
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Ductility by shear band delocalization in the nano-layer of gradient structure
Materials Research Letters, 2019 Nanostructured (NS) metals typically fail soon after yielding, starting with the formation of narrow shear bands. Here we report the observation of shear band delocalization in gradient metals.
Fuping Yuan +5 more
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Strain Localization during Equal-Channel Angular Pressing Analyzed by Finite Element Simulations
Metals, 2018 Equal-Channel Angular Pressing (ECAP) is a method used to introduce severe plastic deformation into a metallic billet without changing its geometry.
Tobias Daniel Horn +4 more
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Hardening of shear band in metallic glass
Scientific Reports, 2017 AbstractStrain hardening, originating from defects such as the dislocation, avails conventional metals of high engineering reliability in applications. However, the hardenability of metallic glass is a long-standing concern due to the lack of similar defects.
J. G. Wang +8 more
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Shear-band thickness and shear-band cavities in a Zr-based metallic glass
Acta Materialia, 2017 Abstract Strain localization into shear bands in metallic glasses is typically described as a mechanism that occurs at the nano-scale, leaving behind a shear defect with a thickness of 10–20 nm. Here we sample the structure of a single system-spanning shear band that has carried all plastic flow with high-angle annular dark field scanning ...
C. Liu +3 more
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Numerical simulation of systems of shear bands in ductile metal with inclusions
AIP Advances, 2016 We develop a method for numerical simulations of high strain-rate loading of mesoscale samples of ductile metal with inclusions. Because of its small-scale inhomogeneity, the composite material is prone to localized shear deformation (adiabatic shear ...
JeeYeon N. Plohr, Bradley J. Plohr
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Shear‐Band Dynamics in Metallic Glasses
Advanced Functional Materials, 2015 The future of metallic glasses as an advanced structural and functional material will to a great extent depend on the understanding and control of their mesoscopic flow defects called shear bands. These defects are sweet‐and‐sour; sweet because they mediate macroscopic plasticity at room temperature, and sour because they quickly promote failure.
Maass Robert, Loeffler Joerg F.
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