Grain boundary sliding
Incompatibility stresses and lattice rotations due to grain boundary sliding in heterogeneous anisotropic elasticity
... the grain boundary plane, a line is pinned in order to mimic the effect of a triple ...of grain boundary sliding, as a stress generator and as a stress relaxation mechanism, is then ...
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Strain localization in ultramylonitic marbles by simultaneous activation of dislocation motion and grain boundary sliding (Syros, Greece)
... of grain size sensitive deformation mecha- nisms can be found in the ultramylonitic marbles, which are characterized by (1) an extremely small grain size ( ∼ 3 µm), (2) grain boundary triple ...
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Two Dimensional Observation of Grain Boundary Sliding of ODS Ferritic Steel in High Temperature Tension
... at grain boundaries, which are stacked at boundaries and creates strong KAM ...some grain boundaries in this transition ...cooperative grain boundary sliding (CGBS), has been regarded ...
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Grain Boundary Sliding in a Superplastic Zinc Aluminum Alloy Processed Using Severe Plastic Deformation
... of grain boundary sliding, one face of the gauge surface of each specimen was polished to a mirror-like finish prior to tensile testing and then a series of parallel marker lines was drawn on the ...
6
The Role of Grain Boundary Sliding in Microstructural Evolution during Superplastic Deformation of a 7055 Aluminum Alloy
... ε = 1.7 × 10 − 3 s − 1 at which the material exhibits superplastic behavior with a total elongation of 720% and the coefficient m = 0.58. Partially recrystallized initial structure of the as-processed 7055 Al consisted ...
7
Grain Boundary Sliding Induced Creep of Powder Metallurgically Produced Nb 20Si 23Ti 6Al 3Cr 4Hf
... During pure dislocation creep, the deformation is con- trolled by a dynamic equilibrium between the formation and annihilation of dislocations in the sub-grains, which limit their mean free path. Even in small grains, ...
8
Grain Boundary Sliding in AZ31 Magnesium Alloys at Room Temperature to 523 K
... of grain-boundary sliding (GBS) at room temperature was demonstrated by the displacement of scribed lines across grain boundaries of deformed ...for grain boundary ...
7
Grain Boundary Sliding and Atomic Structures in Alumina Bicrystals with [0001] Symmetric Tilt Grain Boundaries
... Grain boundary sliding behavior was investigated for the ...tilt grain boundaries by the compression creep test under a con- stant stress of 15 MPa at 1723 K in ...tilt boundary until ...
5
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
... circular grain boundary where a large amount of GBS ...of grain-boundary cracks are explained by con- sidering plastic deformation of the IS and OS ...the grain boundary affects ...
5
Grain Boundary Related Deformation in ODS Ferritic Steel during Creep Test
... a sliding deformation at grain boundaries aligning 45° with a stress ...the grain boundary sliding is caused at speci fi c coincidence site lattice (CSL) in the recrystallized ODS ...
5
An Analysis of Flow Mechanisms in High Temperature Creep and Superplasticity
... of grain boundary sliding. The principle of this sliding is depicted schematically for a three-grain config- uration in ...the grain boundaries and in practice these offsets, ...
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Influence of Microstructures on the Notched Tensile Strength of Ti 4 5Al 3V 2Fe 2Mo Alloy
... and grain boundary sliding accompanied with orientation effect were obvious in the SB-593 specimen ...that grain boundary sliding occurred not only in the flat fracture region but ...
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A Reliability Study of Nanoparticles Reinforced Composite Lead Free Solder
... that grain boundary sliding is the predominant mode of TMF damage that occurs during the high-temper- ature dwell in a TMF ...the grain boundary slide could be constrained effectively ...
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Grain Refinement in As Cast 7475 Aluminum Alloy under Hot Equal Channel Angular Pressing
... It is well known that with increasing of temperature slip takes place more homogeneously, and so results in reduction of the tendency for grain fragmentation. Even if strain gradients are developed during hot ...
9
Compressive Deformation Behavior of Nanocrystalline Al Alloys at High Temperatures
... alloys, grain boundary sliding mechanism competes with dislocation mechanism because of relatively coarse grain size, depending on microstructures, alloying elements and test conditions, ...of ...
5
Influence of Phosphorus Microalloying on the Microstructure and Mechanical Properties of DA761 Superalloy
... inhibits grain boundary sliding and selective ...optimum grain boundary precipitation, obstruction of grain boundary oxidation and retardation of the creep ...
6
Computational Study of Grain Boundaries and Nano-Reactive Materials
... of grain boundary migration of metallic materials using molecular dynamics simulation, grain boundary mobilities and activation energies are often found to be different from experimentally ...
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The High temperature properties of Fe Ni Cr alloys
... at grain-boundaries and propogate along the grain- boundaries, the importance of suppressing these effects becomes ...strengthening grain-boundaries has been through precipitation and segregation of ...
363
Effects of Eutectic Compounds Formed along Grain Boundaries in Thixomolded® Alloy Mg96Zn2Y2 on Creep Deformation
... 8(b), grain boundaries and a scribe line are shown by solid lines and broken line, ...the grain boundaries and interfaces between the - Mg matrix and the eutectic ...when grain boundary ...
7
Links between metamorphism and deformation in feldspar at mid-crustal conditions
... to grain boundaries, and occurs in hydrous phases and fluid inclusions (Bucher and Stober, ...the grain boundary sliding (GBS) that is required for the material to maintain continuity during ...
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