Avalanches and plastic flow in crystal plasticity: an overview
Crystal plasticity is mediated through dislocations, which form knotted configurations in a
complex energy landscape. Once they disentangle and move, they may also be impeded by …
complex energy landscape. Once they disentangle and move, they may also be impeded by …
Heterogeneous lamella structure unites ultrafine-grain strength with coarse-grain ductility
Grain refinement can make conventional metals several times stronger, but this comes at
dramatic loss of ductility. Here we report a heterogeneous lamella structure in Ti produced …
dramatic loss of ductility. Here we report a heterogeneous lamella structure in Ti produced …
A micropillar compression investigation into the plastic flow properties of additively manufactured alloys
Solidification cells and a high density of dislocations are two common features of additively
manufactured (AM) alloys that are processed using techniques such as laser powder bed …
manufactured (AM) alloys that are processed using techniques such as laser powder bed …
A hard/soft layered micro-structured CuCrZr alloy with strength, ductility and electrical conductivity synergy
F Han, Y Jiang, F Cao, L Cai, S Liang - Materials Characterization, 2023 - Elsevier
Layered CuCrZr alloys with different hardness ratios of heterogeneous hard/soft
microstructures were prepared by powder metallurgy combined with rolling and annealing …
microstructures were prepared by powder metallurgy combined with rolling and annealing …
Theoretical and numerical investigations of single arm dislocation source controlled plastic flow in FCC micropillars
The 'dislocation source'controlled plastic behaviors in submicron single crystals, which differ
significantly from macroscopic plastic flow, are widely observed in recent in situ TEM tests. In …
significantly from macroscopic plastic flow, are widely observed in recent in situ TEM tests. In …
Size-dependent microstructural evolution and mechanical properties of crystalline/amorphous high-entropy alloy nanostructured multilayers: Cu/FeCoCrNiBSi vs Ni …
YF Zhao, B Chen, YQ Wang, JY Zhang, SZ Li, K Wu… - Acta Materialia, 2023 - Elsevier
Magnetron sputtering technique was employed to synthesize crystalline/amorphous high-
entropy alloy (AHEA) X/AHEA (X= Cu and Ni, AHEA= Fe 20 Co 20 Cr 20 Ni 20 B 10 Si 10) …
entropy alloy (AHEA) X/AHEA (X= Cu and Ni, AHEA= Fe 20 Co 20 Cr 20 Ni 20 B 10 Si 10) …
Controlling strain bursts and avalanches at the nano-to micrometer scale
We demonstrate, through three-dimensional discrete dislocation dynamics simulations, that
the complex dynamical response of nano-and microcrystals to external constraints can be …
the complex dynamical response of nano-and microcrystals to external constraints can be …
Stochastic behaviors in plastic deformation of face-centered cubic micropillars governed by surface nucleation and truncated source operation
Three dimensional dislocation dynamics (DD) simulations are performed to investigate the
governing mechanism of size dependent plastic deformation in submicron face-centered …
governing mechanism of size dependent plastic deformation in submicron face-centered …
Heat treatment behavior and strengthening mechanisms of CNT/6061Al composites fabricated by flake powder metallurgy
The carbon nanotubes reinforced 6061Al composites (CNT/6061Al) with CNTs uniformly
dispersed were fabricated by flake powder metallurgy process. The mechanical properties of …
dispersed were fabricated by flake powder metallurgy process. The mechanical properties of …
[HTML][HTML] Mechanical, microstructural and in-situ neutron diffraction investigations of equi-biaxial Bauschinger effects in an interstitial-free DC06 steel
Bauschinger effects typically describe a reduction of yield strength after a load path change
under uniaxial loading conditions. Here, we use in-plane loading to investigate, for the first …
under uniaxial loading conditions. Here, we use in-plane loading to investigate, for the first …