Journal Article10.1007/BF02646988
An In Situ Transmission Electron Microscope Deformation Study of the Slip Transfer Mechanisms in Metals
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TL;DR: In this paper, the slip transfer mechanism across grain boundaries in 310 stainless steel, high-purity aluminum, and a Ni-S alloy have been studied by using thein situ transmission electron microscope (TEM) deformation technique.
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Abstract: The slip transfer mechanisms across grain boundaries in 310 stainless steel, high-purity aluminum, and a Ni-S alloy have been studied by using thein situ transmission electron microscope (TEM) deformation technique. Several interactions between mobile lattice dislocations and grain boundaries have been observed, including the transfer and generation of dislocations at grain boundaries and the nucleation and propagation of a grain boundary crack. Quantitative conditions have been established to correctly predict the slip transfer mechanism.
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Citations
The effects of microstructure and morphology on fracture nucleation and propagation in martensitic steel alloys
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Dislocation interactions at the grain boundary in FCC bicrystals: An atomistically-informed dislocation dynamics study
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TL;DR: In this paper , atomistic simulations and three-dimensional dislocation dynamics simulations were performed to investigate dislocation interactions at various grain boundaries and their role in the plastic deformation of face-centered cubic (FCC) bicrystalline micropillars.
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The Effect of a Grain Boundary on Deformation in an Aluminum Bicrystal with a Common Tensile Axis of (100)
Keizo Kashihara,John A. Wert +1 more
TL;DR: In this paper, the effect of a grain boundary on deformation has been examined using an aluminum bicrystal specimen composed of crystals having a common tensile axis of [100] by the measurement of orientation change with the electron backscatter diffraction technique.
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References
Dislocation and grain boundary interactions in metals
TL;DR: In this paper, the passage of dislocations through grain boundaries in face centered cubic and body centered cubic polycrystalline metals was studied using dynamic in situ high voltage electron microscopy (HVEM), static transmission electron microscope (TEM), and anisotropic elastic stress analysis.
486
Multiple slip in bicrystal deformation
TL;DR: In this article, the tensile deformation of bicrystal specimens with longitudinal grain boundaries has been considered, both from the point of view of macroscopic plasticity and from that of dislocation theory.
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