Interaction of precipitate with shear–coupled grain boundary migration
Sign Up to like & getrecommendations! Published in 2019 at "Acta Mechanica"
DOI: 10.1007/s00707-019-02538-0
Abstract: Shear-coupled grain boundary migration (SCGBM) has already been observed in extensive experiments and serves as an effective mechanism for the grain growth in nanocrystalline materials. Meanwhile, it is well known that precipitates strongly inhibit the… read more here.
Keywords: grain boundary; boundary migration; shear coupled; grain ... See more keywords
{1 0 −1 2} twin boundaries migration accompanied by void in magnesium
Sign Up to like & getrecommendations! Published in 2020 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2020.109857
Abstract: Abstract Grain boundary (GB) migration plays a vital role in the plastic deformation of nanopolycrystalline metals. Molecular dynamics (MD) simulation on a bicrystalline Mg model is employed to investigate the mechanism of basal-prismatic (BP) boundary… read more here.
Keywords: migration accompanied; boundary migration; boundaries migration; void ... See more keywords
Effects of magnesium dopants on grain boundary migration in aluminum-magnesium alloys
Sign Up to like & getrecommendations! Published in 2020 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2020.110130
Abstract: Abstract Atomistic simulations have been used to study the grain boundary (GB) migration in pure Al and Mg-doped Al binary alloys. The results of shearing simulations indicate that the effect of dopants on the GB… read more here.
Keywords: grain boundary; boundary migration; magnesium dopants; effects magnesium ... See more keywords
Grain growth of nanocrystalline aluminum under tensile deformation: A combined in situ TEM and atomistic study
Sign Up to like & getrecommendations! Published in 2021 at "Materialia"
DOI: 10.1016/j.mtla.2021.101068
Abstract: Abstract Nanocrystalline Al thin films have been strained in situ in a transmission electron microscope using two separate nanomechanical techniques involving a push-to-pull device and a microelectromechanical system (MEMS) device. Deformation-induced grain growth was observed… read more here.
Keywords: boundary migration; grain growth; tensile; deformation ... See more keywords
Role of surface finish on interface grain boundary migration in vacuum diffusion bonding
Sign Up to like & getrecommendations! Published in 2017 at "Vacuum"
DOI: 10.1016/j.vacuum.2016.12.021
Abstract: Abstract The objective of this study was to get insight into the role of surface finish on interface grain boundary migration during vacuum diffusion bonding of stainless steel. The results showed that two types of… read more here.
Keywords: interface grain; grain boundary; boundary migration;
Reconciling grain growth and shear-coupled grain boundary migration
Sign Up to like & getrecommendations! Published in 2017 at "Nature Communications"
DOI: 10.1038/s41467-017-01889-3
Abstract: Conventional models for grain growth are based on the assumption that grain boundary (GB) velocity is proportional to GB mean curvature. We demonstrate via a series of molecular dynamics (MD) simulations that such a model… read more here.
Keywords: grain boundary; boundary migration; migration; grain growth ... See more keywords
In situ atomistic observation of disconnection-mediated grain boundary migration
Sign Up to like & getrecommendations! Published in 2019 at "Nature Communications"
DOI: 10.1038/s41467-018-08031-x
Abstract: Shear-coupled grain boundary (GB) migration is of general significance in the deformation of nanocrystalline and polycrystalline materials, but comprehensive understanding of the migration mechanism at the atomic scale remains largely lacking. Here, we systematically investigate… read more here.
Keywords: migration; grain boundary; boundary migration; disconnection mediated ... See more keywords
Boundary migration in a 3D deformed microstructure inside an opaque sample
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DOI: 10.1038/s41598-017-04087-9
Abstract: How boundaries surrounding recrystallization grains migrate through the 3D network of dislocation boundaries in deformed crystalline materials is unknown and critical for the resulting recrystallized crystalline materials. Using X-ray Laue diffraction microscopy, we show for… read more here.
Keywords: recrystallization; migration deformed; deformed microstructure; boundary migration ... See more keywords
Effect of grain boundary migration in Cu–Cr–Zr–Ti manufactured using different casting processes
Sign Up to like & getrecommendations! Published in 2019 at "Materials Science and Technology"
DOI: 10.1080/02670836.2019.1636179
Abstract: ABSTRACT Grain boundary migration in different casting processes directly affects the grain size of the ingot, which affects the mechanical properties of the alloy. In this study, Cu–Cr–Zr–Ti rods are manufactured using upward continuous casting… read more here.
Keywords: grain boundary; manufactured using; boundary migration; casting processes ... See more keywords
Misorientation dependence of the grain boundary migration rate: role of elastic anisotropy
Sign Up to like & getrecommendations! Published in 2020 at "Philosophical Magazine"
DOI: 10.1080/14786435.2020.1779368
Abstract: ABSTRACT In this work, numerical computations of image forces and stored energy during the growth of a strain free grain within a recovered matrix containing an array of identical dislocations are performed. A decrease of… read more here.
Keywords: elastic anisotropy; grain boundary; boundary migration; energy ... See more keywords