Review on superior strength and enhanced ductility of metallic nanomaterials

IA Ovid'Ko, RZ Valiev, YT Zhu - Progress in materials science, 2018 - Elsevier
Nanostructured metallic materials having nanocrystalline and ultrafine-grained structures
show exceptional mechanical properties, eg superior strength, that are very attractive for …

Nonequilibrium grain boundaries in bulk nanostructured metals and their recovery under the influences of heating and cyclic deformation

AA Nazarov - Letters on materials, 2018 - lettersonmaterials.com
Extrinsic grain boundary dislocations (EGBDs) are formed in grain boundaries during plastic
deformation of polycrystals EGBDs cause a nonequilibrium structure of grain boundaries …

Strengthening and Weakening by Dislocations in Monolayer MoS2

L Yang, J Liu, Y Lin, K Xu, X Cao, Z Zhang… - Chemistry of …, 2021 - ACS Publications
Dislocations govern the properties of crystals. Yet, how pentagon–heptagon (5| 7) pairs in
grain boundaries (GBs) affect the mechanical properties of MoS2 remains poorly known …

Multiscale modeling of polycrystalline graphene: A comparison of structure and defect energies of realistic samples from phase field crystal models

P Hirvonen, MM Ervasti, Z Fan, M Jalalvand… - Physical Review B, 2016 - APS
We extend the phase field crystal (PFC) framework to quantitative modeling of
polycrystalline graphene. PFC modeling is a powerful multiscale method for finding the …

Influence of grain boundary state on electrical resistivity of ultrafine grained aluminium

TS Orlova, AM Mavlyutov, AS Bondarenko… - Philosophical …, 2016 - Taylor & Francis
An ultrafine grained (UFG) structure has been obtained in commercial purity Al by high-
pressure torsion (HPT). Changes in microhardness and electrical resistivity of the UFG …

Disclinations in polycrystalline graphene and pseudo-graphenes. Review

AE Romanov, MA Rozhkov… - Letters on …, 2018 - lettersonmaterials.com
Assembling of pseudo-graphene from grain boundaries with structural units 5-7. In this
review, we consider wedge disclinations as the main structural defects in 2D graphene …

[HTML][HTML] Elastic fields of straight wedge disclinations axially piercing bodies with spherical free surfaces

AL Kolesnikova, MY Gutkin, AV Proskura… - International journal of …, 2016 - Elsevier
Linear elasticity problem for a straight wedge disclination, which axially pierces a hollow
sphere (a spherical layer), is solved analytically. The disclination displacements, stresses …

Electrical resistivity of polycrystalline graphene: Effect of grain-boundary-induced strain fields

SE Krasavin, VA Osipov - Scientific Reports, 2022 - nature.com
We have revealed the decisive role of grain-boundary-induced strain fields in electron
scattering in polycrystalline graphene. To this end, we have formulated the model based on …

[HTML][HTML] A mesoscopic theory of dislocation and disclination fields for grain boundary-mediated crystal plasticity

V Taupin, L Capolungo, C Fressengeas… - International Journal of …, 2015 - Elsevier
A coarse-grained extension of a recent nanoscale elasto-plastic model of polar dislocation
and disclination density fields is developed to model grain boundary-mediated plasticity in …

Effect of grain boundaries on the electron work function of ultrafine grained aluminum

TS Orlova, AV Ankudinov, AM Mavlyutov… - Reviews on Advanced …, 2018 - degruyter.com
The electron work function (EWF) of ultrafine grained (UFG) aluminum structured by high
pressure torsion (HPT) has been investigated. For the first time, the dependence of the EWF …