Grain boundary structure generation and definition
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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Relationship of grain boundary structure and mechanical properties of Inconel 690
... through grain boundaries. Dislocations that can not glide easily through grain boundaries pile up in the regions adjacent to the grain ...the grain boundary, as shown in Figure ...the ...
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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 ...
6
Fundamentals of grain boundaries and grain boundary migration
... Small angle twist boundaries require two sets of screw dislocations and in the most general case of mixed LAGBs the boundary structure is comprised of dislocation networks of three Burgers vectors [5]. By ...
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Enhanced grain boundary embrittlement of an Fe grain boundary segregated by hydrogen (H)
... electronic structure during straining have been investigated using first-principles fully relaxed tensile tests to gain a deeper understanding of GB embrittlement enhanced by impurity ...tronic structure ...
10
Structure and Configuration of Boundary Dislocations on Low Angle Tilt Grain Boundaries in Alumina
... angle grain boundaries with periodically arranged disloca- tions, the total elastic repulsive force on a dislocation from all the other dislocations should be balanced with the attractive force due to the stacking ...
7
Effect of grain boundary structure on the intercrystalline damaging of austenic steel during brazing
... along grain boundaries, which looks like ...angle grain boundaries – our goal was to enhance the number of special coincident site lattice type grain boundaries with thermomechanical ...
5
Grain boundary energies in copper
... atomic structure of grain boundaries has been studied extensively using computer ...the boundary is then found by computer ...proper boundary conditions and finding relaxation techniques ...
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Grain Boundary Structure of Ultrafine Grained Pure Copper Fabricated by Accumulative Roll Bonding
... different grain boundary plane from that of the STGB, the mixed structure consisting of the structural unit and the facetted coherent plane probably has lower energy than the grain ...
7
Rich-grain-boundary PtRuNi with network structure as efficient catalysts for methanol oxidation reaction
... network structure is an efficient way to increase the electrocatalytic activity of a ...network-like structure of PtRuNi with rich grain boundaries characterized via scanning electron microscopy and ...
6
Effects of Impurities on an Al Grain Boundary
... the boundary expands substantially and the charge density decreases significantly over the ...electronic structure ofan Al grain boundary according to the nature ofeach species, which seems to ...
7
High Temperature Grain Boundary Plasticity in Ceramics
... the grain boundary quantum structure on the high temperature plasticity in ...the grain boundary quantum structure through the cation-doping will be an effective method for ...
7
Grain Boundary Diffusion in Metals: Recent Developments
... Our general understanding of GB diffusion in intermetallic compounds has still to be improved on the atomistic level in many details. For example, particular diffusion mechanisms in GBs, the effect of the order and of ...
14
Pipe and grain boundary diffusion of He in UO₂
... and grain boundaries on He diffusion in UO 2 ...and grain boundaries was investigated for the temperature range 2300 –3000 ...each structure, as a function of distance from the dislocation or ...
12
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 ...
10
Dislocation Grain Boundary Interactions in Irradiated Metals
... a grain boundary dislocations can be accommodated within ...into grain boundary type ...the grain boundary and the location on the grain boundary from which ...
19
Atomic Structure of Faceted Σ 3 CSL Grain Boundary in Silicon: HRTEM and Ab initio Calculation
... observed structure 19) is not exactly same as the ...disordered structure such as grain ...observed structure did not coincide with Kohyama’s model 5) of the {112} 3 CSL boundary which ...
5
Combined in situ microstructural study of the relationships between local grain boundary structure and passivation on microcrystalline copper
... of applying analytical methods sensitive to the electrochemically-induced local alterations of the topmost surface. Recently, ECSTM (Electro-Chemical Scanning Tunneling Microscopy) has been applied to microcrystalline ...
28
Modification of Local Structure and Its Influence on Electrical Activity of Near (310) Σ5 Grain Boundary in Bulk Silicon
... GB structure as the growth of crystal was found to produce the change in electrical activity of the ...the grain, I 0 , as a function of the distance from the ...GB structure transformed into more ...
5
A Study of UO2 Grain Boundary Structure and Thermal Resistance Change under Irradiation using Molecular Dynamics Simulations
... processes; grain refining is more significant at high temperature zone; and interactions between fuel and cladding, for example interdiffusion, are also controlled by ...for Generation IV reactors, to show ...
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