Thermally-activated dislocation mobility in bcc metals: An accelerated molecular dynamics study
Sign Up to like & getrecommendations! Published in 2021 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2021.110804
Abstract: Abstract Plastic deformation in metals is controlled by dislocation density and mobility. In bcc metals the mobility of screw dislocations, which takes place by temperature- and stress-driven nucleation of critical kink-pairs, is most essential for… read more here.
Keywords: dislocation mobility; molecular dynamics; mobility; dislocation ... See more keywords
The role of hydrogen in the edge dislocation mobility and grain boundary-dislocation interaction in α-Fe
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Hydrogen Energy"
DOI: 10.1016/j.ijhydene.2021.07.061
Abstract: Abstract The atomistic mechanisms of dislocation mobility depending on the presence of hydrogen were investigated for two edge dislocation systems that are active in the plasticity of α-Fe, specifically ½ {110} and ½ {112}. In… read more here.
Keywords: grain boundary; dislocation; hydrogen; edge dislocation ... See more keywords
Irradiation in BCC materials: Defect-induced changes of the effective dislocation mobility and their relation with the dose-dependent fracture response
Sign Up to like & getrecommendations! Published in 2021 at "Progress in Nuclear Energy"
DOI: 10.1016/j.pnucene.2021.103926
Abstract: Abstract The mechanical response of nuclear structural materials and their lifetime are strongly affected by radiation effects. This influence is of concern, especially in body centered cubic materials, which exhibiting a well-defined ductile to brittle… read more here.
Keywords: response; defect induced; dislocation; dose dependent ... See more keywords
Data-driven modeling of dislocation mobility from atomistics using physics-informed machine learning
Sign Up to like & getrecommendations! Published in 2024 at "npj Computational Materials"
DOI: 10.1038/s41524-024-01394-4
Abstract: Dislocation mobility, which dictates the response of dislocations to an applied stress, is a fundamental property of crystalline materials that governs the evolution of plastic deformation. Traditional approaches for deriving mobility laws rely on phenomenological… read more here.
Keywords: physics informed; dislocation mobility; mobility; physics ... See more keywords
Spectrum of dislocation mobility resonances in NaCl crystals under ultralow magnetic fields in EPR scheme
Sign Up to like & getrecommendations! Published in 2024 at "AIP Advances"
DOI: 10.1063/5.0177619
Abstract: Dislocation motions are studied in NaCl crystals exposed to an EPR impact under crossed ultralow magnetic fields, the Earth field BEarth ∼ 50 µT, and the AC pumping field B̃(ν) of the amplitude 2.5 µT… read more here.
Keywords: nacl crystals; dislocation mobility; dislocation; ultralow magnetic ... See more keywords
The effects of surface kink nucleation on the dislocation mobility for bcc metals: a kinetic Monte Carlo study
Sign Up to like & getrecommendations! Published in 2025 at "Modelling and Simulation in Materials Science and Engineering"
DOI: 10.1088/1361-651x/adab0c
Abstract: Dislocation plasticity in bcc metals at low temperatures and stresses is well known to be controlled by screw dislocation mobility. Screw dislocations move by the nucleation of kink-pairs on the dislocation line and is a… read more here.
Keywords: kinetic monte; dislocation mobility; bcc metals; dislocation ... See more keywords