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Roughness characterization and shearing dislocation failure for rock–backfill interface
Shearing dislocation is a common failure type for rock–backfill interfaces because of backfill sedimentation and rock strata movement in backfill...
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Multi-Phase-Field Simulation of the Dynamic Dragging of Dislocation on the Solute Atoms and Point Defects
Point defects and dislocation can be induced in dual-phase stainless steels in the circumstance of irradiation. These defects affect the phase...
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Dislocation structure during nano-indentation and surface topographic maps
Dislocation structure evolution during nano-indentation is investigated using a three-dimensional multi-scale discrete dislocation plasticity model....
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Anomalous response to creep deformation from dislocation density during electrically assisted creep aging
Adding numerous dislocations into metallic materials before the forming stage significantly enhances their deformability. However, this beneficial...
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Strengthening from dislocation restructuring and local climb at platelet linear complexions in Al-Cu alloys
Stress-driven segregation at dislocations can lead to structural transitions between different linear complexion states. In this work, we examine how...
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Multi-scale investigation of short-range order and dislocation glide in MoNbTi and TaNbTi multi-principal element alloys
Refractory multi-principal element alloys (RMPEAs) are promising materials for high-temperature structural applications. Here, we investigate the...
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Precipitate and dislocation-density interactions affecting strength and ductility in inconel alloys
Grain and precipitate morphologies, orientations, and distributions in precipitation hardened nickel alloy 718 are directly affected by material...
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Serrated plastic flow in deforming complex concentrated alloys: universal signatures of dislocation avalanches
Under plastic flow, multi-element high/medium-entropy alloys (HEAs/MEAs) commonly exhibit complex intermittent and collective dislocation dynamics...
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Pb induced dislocation defects of PtCo systems: Strain-triggered oxygen reduction reaction for PEMFC
Design and development of advanced electrocatalysts with high performance and low Pt consumption are crucial for reducing the kinetic energy barrier...
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Quantifying the Dislocation Cell Contribution to the Yield Strength of 316L Steel
The present work investigates the contribution of dislocation cell to the yield strength of additively manufactured (AM) 316L steel through...
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Interrelationship of Manufacturing, Surface Morphology, and Properties of Titanium
Manufacturing of titanium parts modifies the surface morphology mostly with the goal of a functionalization like grooves to change the wettability or...
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Strategies for dislocation density reduction in CdTe epilayers grown directly on (211) Si substrates using MOVPE
Two different techniques, namely in-situ cycle annealing and post-growth patterning and annealing, were studied to reduce dislocation density in...
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Effect of varied initial dislocation densities on the anisotropic behavior of creep-aging in Al–Cu–Li alloy
Accurate forming predictions for the third-generation Al–Cu–Li alloys challenged by anisotropic creep-aging (CA) behavior. The creep-aging...
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Models of dislocation glide and strengthening mechanisms in bcc complex concentrated alloys
The mechanical response of complex concentrated alloys (CCAs) deviates from that of their pure and dilute counterparts due to the introduction of a...
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Modeling dislocation interactions with grain boundaries in lath martensitic steels
Martensitic steels are widely used as a structural material in critical components of fossil fuel and nuclear power plants, such as boilers, pipes,...
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Role of interfaces on the mechanical response of accumulative roll bonded nanometallic laminates investigated via dislocation dynamics simulations
Unraveling the effects of continuous dislocation interactions with interfaces, particularly at the nanometer length scales, is key to a broader...
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Comparison of Dislocation Loop Formation Resistance in Nanocrystalline and Coarse-Grained Refractory High Entropy Alloys
In nanocrystalline high entropy alloys (HEAs), the difference in chemistry and the density of interfaces play a role in the microstructure evolution,...
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Non-destructive characterization of dislocation density in annealed pure iron using nonlinear ultrasonic combined with recurrence quantification analysis
To achieve a non-destructive, high-sensitivity, and in situ characterization of the dislocation density in metals, an integrated strategy is proposed...
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Dislocation Density Reduction in MOVPE-Grown (211) CdTe/Si by Post-Growth Patterning and Annealing
We studied the effectiveness of post-growth patterning and annealing on threading dislocation (TD) reduction in (211) CdTe/Si epilayers grown using...
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Dislocation-Based Finite Element Modeling of an Off-Axis Twist Extrusion with Variable Helix Angles
This study presents a comprehensive investigation into the deformation behavior and microstructural characteristics of pure aluminum during off-axis...
