Results 1 to 10 of about 32,459 (292)
Grain Rotation in Plastic Deformation [PDF]
Quantum Beam Science, 2019 The plastic deformation behaviors of crystalline materials are usually determined by lattice dislocations. Below a certain particle or grain size, focus is placed on the grain-boundary-mediated mechanisms (e.g., grain rotation, grain boundary sliding ...
Bin Chen +3 more
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Disconnection flow-mediated grain rotation. [PDF]
Proc Natl Acad Sci U S A, 2023 Grain rotation is commonly observed during the evolution of microstructures in polycrystalline materials of different kinds, including metals, ceramics, and colloidal crystals. It is widely accepted that interface migration in these systems is mediated by the motion of line defects with step and dislocation character, i.e., disconnections. We propose a
Qiu C +3 more
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Detecting grain rotation at the nanoscale. [PDF]
Proc Natl Acad Sci U S A, 2014 Significance The plastic deformation of nanomaterials has long been wrapped in mystery. Grain rotation is suggested to be a dominant mechanism of plastic deformation for ultrafine nanomaterials. However, the in situ observation of grain rotation has been made possible only for coarse-grained materials. Here we report the in situ high-pressure
Chen B +5 more
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Grain rotation mediated by grain boundary dislocations in nanocrystalline platinum. [PDF]
Nat Commun, 2014 Grain rotation is a well-known phenomenon during high (homologous) temperature deformation and recrystallization of polycrystalline materials. In recent years, grain rotation has also been proposed as a plasticity mechanism at low temperatures (for example, room temperature for metals), especially for nanocrystalline grains with diameter d less than ...
Wang L +8 more
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Annealing-Induced Grain Rotation In Ultrafine-Grained Aluminum Alloy
Reviews on Advanced Materials Science, 2018 Results of in situ transmission electron microscopic studies of annealing-induced evolution of grain boundary misorientations in ultrafine-grained aluminum alloy Al-4%Cu-0.5%Zr (wt.%) processed by high pressure torsion are presented.
Danilenko V. N. +2 more
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Effect of grain shape on the dynamics of granular materials in 2D rotating drum [PDF]
EPJ Web of Conferences, 2021 We experimentally investigate the effect of the grain shape on the flow of granular material. The grain shape is modified to highlight the effect of grain circularity on granular flow in a 2D rotating drum.
Preud’homme Nicolas +3 more
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Grain Rotation Accommodated GBS Mechanism for the Ti-6Al-4V Alloy during Superplastic Deformation
Crystals, 2021 An investigation of flow behavior and the deformation mechanism for Ti-6Al-4V alloy during the superplastic deformation process is presented in this paper.
Junzhou Yang, Jianjun Wu
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Nanotechnology Reviews, 2021 In this paper, the mechanical behavior of gradient nano-grained copper under uniaxial deformation was investigated using molecular dynamics simulations.
Zhang Jiarui +4 more
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Зерновое хозяйство России, 2023 Winter wheat is the main grain crop in the Central Blackearth region. The purpose of the current study was to estimate the effect of basic tillage practices and doses of mineral fertilizers in crop rotations on the productivity, grain quality and ...
I. I. Gureev +5 more
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In-situ EBSD characterization of deformation behavior of primary alpha phase in Ti-6Al-4V [PDF]
MATEC Web of Conferences, 2020 Uniaxial tension experiments and electron back-scatter diffraction were performed on a bimodal Ti-6Al-4V alloy to study the deformation behavior of primary hcp-Ti (αp).
Li Wansong +3 more
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