Dislocation nucleation and evolution at the ferrite-cementite interface under cyclic loadings
Sign Up to like & getrecommendations! Published in 2020 at "Acta Materialia"
DOI: 10.1016/j.actamat.2019.12.052
Abstract: Abstract Fatigue is of significant importance to the engineering applications of the structural materials. High-strength pearlite steel consisting of a ductile ferrite phase and a brittle cementite phase is a widely used structural metal for… read more here.
Keywords: phase; ferrite cementite; dislocation; cementite interface ... See more keywords
Effect of structural anisotropy on the dislocation nucleation and evolution in 6H SiC under nanoindentation
Sign Up to like & getrecommendations! Published in 2019 at "Ceramics International"
DOI: 10.1016/j.ceramint.2019.04.131
Abstract: Abstract Single crystalline 6H SiC possesses complex microstructure and its deformation is strongly anisotropic. With the aid of molecular dynamics analysis, this paper investigated the dislocation nucleation and evolution in 6H SiC under nanoindentation on… read more here.
Keywords: sic nanoindentation; dislocation nucleation; nanoindentation; dislocation ... See more keywords
Homogeneous and heterogeneous dislocation nucleation in diamond
Sign Up to like & getrecommendations! Published in 2018 at "Diamond and Related Materials"
DOI: 10.1016/j.diamond.2018.07.005
Abstract: Abstract Dislocation nucleation plays a key role in plastic deformation of diamond crystal. In this paper, homogeneous and heterogeneous nucleation nature for diamond 1 6 112 glide set dislocation and 1 2 110 shuffle set… read more here.
Keywords: homogeneous heterogeneous; nucleation; dislocation nucleation; diamond ... See more keywords
Dislocation nucleation in Al single crystal at shear parallel to (111) plane: Molecular dynamics simulations and nucleation theory with artificial neural networks
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Plasticity"
DOI: 10.1016/j.ijplas.2021.102953
Abstract: Abstract We develop the theory of homogeneous nucleation of dislocations, which predicts plasticity incipience in FCC single crystal using material properties at elastic stage. In contrast to previous nucleation theories, we show that the work… read more here.
Keywords: dislocation nucleation; defect energy; nucleation; dislocation ... See more keywords
Anomalous entropy-driven kinetics of dislocation nucleation
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DOI: 10.1038/s41467-025-56272-4
Abstract: The kinetics of dislocation reactions, such as dislocation multiplication, controls the plastic deformation in crystals beyond their elastic limit, therefore critical mechanisms in a number of applications in materials science. We present a series of… read more here.
Keywords: nucleation; dislocation; kinetics dislocation; entropy driven ... See more keywords
Coupled misorientation and solute segregation effects on dislocation nucleation from grain boundaries in Al alloys
Sign Up to like & getrecommendations! Published in 2025 at "Materials Research Letters"
DOI: 10.1080/21663831.2025.2579331
Abstract: Understanding the coupling effect of misorientation and solute segregation on dislocation nucleation from grain boundaries (GBs) is important for designing nanocrystalline metals. By molecular dynamics simulations, we demonstrate the segregation behavior of the solutes Cu… read more here.
Keywords: dislocation; dislocation nucleation; solute segregation;
Effects of Re, W and Co on dislocation nucleation at the crack tip in the γ-phase of Ni-based single-crystal superalloys by atomistic simulation
Sign Up to like & getrecommendations! Published in 2019 at "Royal Society Open Science"
DOI: 10.1098/rsos.190441
Abstract: The effects of Re, W and Co on dislocation nucleation at the crack tip in Ni have been studied by the molecular dynamics method. The results show that the activation energy of dislocation nucleation is… read more here.
Keywords: effects dislocation; crack tip; dislocation; dislocation nucleation ... See more keywords
Using in situ UO2 bicrystal sintering to understand grain boundary dislocation nucleation kinetics and creep
Sign Up to like & getrecommendations! Published in 2024 at "Journal of the American Ceramic Society"
DOI: 10.1111/jace.19960
Abstract: Capillary evolution at bicrystal UO2 grain boundaries is characterized using in situ transmission electron microscopy. The discontinuous nature of the densification process, both particle rotation and axial strain, along with the large activation stress for… read more here.
Keywords: boundary dislocation; using situ; grain boundary; grain ... See more keywords