Results 11 to 20 of about 3,974 (264)
Shock-induced sliding of (0 0 1) twist grain boundaries in Cu
Results in Physics, 2022 Using molecular dynamics simulations, we investigate shock-induced sliding of a set of (0 0 1) twist grain boundaries (GBs) in Cu bicrystal, with shock direction parallel to GB and low shock strength.
Xiaojiang Long +4 more
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Grain Boundary Relaxation in Bi-Crystals: Mechanical Spectroscopy and Molecular Dynamics Simulations
Archives of Metallurgy and Materials, 2015 Different Au-Ag-Cu samples have been studied by mechanical spectroscopy. Both polycrystals and bi-crystals show a relaxation peak at 800 K, accompanied by an elastic modulus change.
Maier A.-K. +3 more
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Metals, 2022 Shear-coupled grain boundary motion (SCGBM) is an important mechanism of plastic deformation, especially in the cases of ultrafine-grained or nanocrystalline materials at low temperatures.
Zhiwen Bai +3 more
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On the Common Origin of Structural Superplasticity in Different Classes of Materials
Reviews on Advanced Materials Science, 2018 The present model starts with an assumption that grain/ interphase boundary sliding (GBS) that is dominant during optimal superplastic flow is slower than the accommodation processes of dislocation emission from sliding boundaries, highly localized ...
Padmanabhan K. A., Basariya M. Raviathul
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Le Journal de Physique Colloques, 1987 It is well known that grain boundary processes - intercrystalline sliding and grain boundary migration - make an important contribution to high temperature deformation of polycrystalline materials, particularly for metals. More recently, these processes have been correlated with the atomic structure of the boundaries.
Ignat, M., Frost, H.
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Simultaneous grain boundary motion, grain rotation, and sliding in a tricrystal [PDF]
Mechanics of Materials, 2015 Grain rotation and grain boundary (GB) sliding are two important mechanisms for grain coarsening and plastic deformation in nanocrystalline materials. They are in general coupled with GB migration and the resulting dynamics, driven by capillary and external stress, is significantly affected by the presence of junctions.
Basak, Anup, Gupta, Anurag
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Scientific Reports, 2018 Recent developments of nanostructured materials with grain sizes in the nanometer to submicrometer range have provided ground for numerous functional properties and new applications.
Kaveh Edalati +2 more
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Hot ductility of Fe-36Ni invar alloy
工程科学学报, 2016 The hot ductility behaviors of Fe-36Ni alloy in the temperature range of 900-1200 ℃ were investigated by using a Gleeble-3800 thermal simulator. The influence factors and mechanism of action on the hot ductility were systematically analyzed by FaetSage ...
HE Yu-tian +5 more
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Using High-Pressure Torsion to Achieve Superplasticity in an AZ91 Magnesium Alloy
Metals, 2020 An AZ91 magnesium alloy (Mg-9%, Al-1% Zn) was processed by high-pressure torsion (HPT) after solution-heat treatment. Tensile tests were carried out at 423, 523, and 623 K in the strain rate range of 10−5−10−1 s−1 to evaluate the occurrence of ...
Roberto B. Figueiredo +1 more
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Damping Mechanism of SiC Particle Reinforced Al Matrix Composites
MATEC Web of Conferences, 2016 The low-frequency internal friction behavior of SiC particle reinforced Al matrix composites was studied over a temperature range from 23°C to 550°C at frequencies of 0.1, 1 and 5 Hz.
Li Xiao +5 more
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