Grain Boundary Energy
Simulating Grain Boundary Energy Using Molecular Dynamics
... the grain boundaries at different misorientations is shown in Figure 2 for both before and after re- laxation of ...the grain boundaries, but also the atoms adjacent to the grain boundaries also ...
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Grain Boundary Energy and Tensile Ductility in Superplastic Cation doped TZP
... respective grain boundary energy has been systematically measured by a thermal grooving technique with atomic force ...the grain boundary energy to stabilize the grain ...
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Phase Field Simulation of the Effect of Anisotropy in Grain Boundary Energy on Growth kinetics and Morphology of Grain Structure
... in grain boundary energy on kinetics of grain growth and topological properties of grain structure in two dimensions was simulated by the phase field ...anisotropic grain ...
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Contribution of the space charge on the grain boundary energy in yttria-stabilized zirconia
... GB energy c 0 b (the capillary driving force for grain growth) consists of three major components: (a) c R b due to the misorientation between neighboring grains, (b) c s b due to the size misfit between ...
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Fundamentals of grain boundaries and grain boundary migration
... the boundary structure is comprised of dislocation networks of three Burgers vectors ...free grain boundary energy is ...its energy E d per unit length is thus expressed ...
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Grain boundary energies in copper
... 2: GRAIN BOUNDARY STUDIES 2.1 Importance of grain boundary energy studies The presence o£ grain boundaries in polycrystalline materials has a marked effect on a variety of ...
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Comparison of the Advantages Conferred by Mobility and Energy of the Grain Boundary in Inducing Abnormal Grain Growth Using Monte Carlo Simulations
... of grain-boundary ...the grain-boundary energy plays a critical role in inducing ...specific grain has a high percentage of low-energy grain boundaries with the ...
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Effect of Ion Implantation on the Mechanical Properties of the Grain and Grain Boundary Regions of Inconel X750
... the grain boundary ...the energy of a grain boundary has, to our knowledge, not been reported studies have been made of the effect of dissimilar segregant atoms on the energy and ...
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Effects of Grain Boundary Sliding and Plastic Deformation of Grains on the Formation of Grain Boundary Cracks in a Double Cylindrical Bicrystal of a Cu SiO2 Alloy
... inside grain with a second grain wrapped around its curved side ...the grain-boundary energy under fixed orientation relationships between ...of grain-boundary cracks at ...
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Grain boundary precipitation in Inconel 718 and ATI 718Plus
... on grain boundaries, it does not appear to grow on every grain ...the grain boundaries that were seen to be precipitate-free were twin ...remaining grain boundaries had misorientations that ...
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Grain Boundary Transport Mechanisms of Oxidation Behaviors in Alumina
... deeper grain boundary grooves under both ...deeper grain boundary grooves following annealing in a reducing atmosphere compared to an oxidizing ...surface energy and grain ...
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Grain Boundary Sliding and Atomic Structures in Alumina Bicrystals with [0001] Symmetric Tilt Grain Boundaries
... coincidence grain boundaries. The grain boundary energies were measured by the thermal grooving technique, and they were found to strongly depend on the grain boundary ...those ...
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Grain boundary relaxation and its effect on plasticity in nanocrystalline Fe
... the grain boundaries. Assuming the grain shape to be the regular 14-sided tet- rakaidecahedron, and the grain size to be the maximum di- ameter of an inscribed sphere, 8 the ...
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Enhanced grain boundary embrittlement of an Fe grain boundary segregated by hydrogen (H)
... INTRODUCTION Grain-boundary (GB) embrittlement in metals is often enhanced by impurity segregation at the ...gation energy at the free surface is lower than that at the ...surface energy more ...
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Grain Boundary Structure Dependence of Extrinsic Grain Boundary Dislocation Emission Phenomena: A Molecular Dynamics Study
... the grain boundaries to act as dislocation sources affects the mechanical characteristics of UFG metals, the relationship between the annealing process and these mechanical characteristics can be analyzed as ...
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Effects of Impurities on an Al Grain Boundary
... the boundary expands substantially and the charge density decreases significantly over the ...Al grain boundary according to the nature ofeach species, which seems to dominate the mechanism ...
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High Temperature Grain Boundary Plasticity in Ceramics
... Another important point is in the well-known fact that the strain rate-flow stress relationship in TZP is affected by impurities. Figure 2 shows a summary of the logarithmic plot of the strain rate-flow stress relationship ...
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Grain Boundary Diffusion in Metals: Recent Developments
... Grain Boundary Diffusion in Metals: Recent Developments Christian Herzig and Sergiy ...in grain boundary (GB) diffusion study is presented with emphasis on physical phenomena encountered in GB ...
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Pipe and grain boundary diffusion of He in UO₂
... gradient energy minimisa- tion during which atomic positions and supercell parameters were relaxed, the system was equilibrated at 1500 K and 0 GPa for 200 ps in the NPT ensemble using Nos é–Hoover thermostat and ...
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Effects of Grain Boundary Disorder on Yield Strength
... of Grain Boundary Disorder on Yield Strength Abstract It was recently reported that segregation of Zr to grain boundaries (GB) in nanocrystalline Cu can lead to the formation of disordered ...
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