Defect phases–thermodynamics and impact on material properties
Two approaches in materials physics have proven immensely successful in alloy design:
First, thermodynamic and kinetic descriptions for tailoring and processing alloys to achieve a …
First, thermodynamic and kinetic descriptions for tailoring and processing alloys to achieve a …
Disordered interfaces enable high temperature thermal stability and strength in a nanocrystalline aluminum alloy
Lightweighting of structural materials has proven indispensable in the energy economy,
predicated on alloy design with high strength-to-weight ratios. Modern aluminum alloys have …
predicated on alloy design with high strength-to-weight ratios. Modern aluminum alloys have …
Dislocation cells in additively manufactured metallic alloys characterized by electron backscatter diffraction pattern sharpness
Metallic alloys produced by additive manufacturing often host complex and hierarchical
microstructures with grains exhibiting large orientation gradients, along with sub-grain …
microstructures with grains exhibiting large orientation gradients, along with sub-grain …
Interplay of chemistry and faceting at grain boundaries in a model Al alloy
The boundary between two crystal grains can decompose into arrays of facets with distinct
crystallographic character. Faceting occurs to minimize the system's free energy, ie, when …
crystallographic character. Faceting occurs to minimize the system's free energy, ie, when …
Molecular dynamics study of hydrogen Cottrell atmosphere in aluminum: Influence of solute-solute interactions in the dislocation core
Cottrell atmospheres form when solute atoms segregate to dislocations, and is one of the
most basic processes by which solutes alter mechanical properties of materials. In the case …
most basic processes by which solutes alter mechanical properties of materials. In the case …
Linear complexions directly modify dislocation motion in face-centered cubic alloys
Linear complexions are defect phases that form in the presence of dislocations and thus are
promising for the direct control of plasticity. In this study, atomistic simulations are used to …
promising for the direct control of plasticity. In this study, atomistic simulations are used to …
The hidden structure dependence of the chemical life of dislocations
Dislocations are one-dimensional defects in crystals, enabling their deformation, mechanical
response, and transport properties. Less well known is their influence on material chemistry …
response, and transport properties. Less well known is their influence on material chemistry …
Atomic-scale study of compositional and structural evolution of early-stage grain boundary precipitation in Al–Cu alloys through phase-field crystal simulation
Interfacial solute clustering is an essential step preceding grain boundary (GB) precipitation.
Both states, ie, clusters and precipitates, alter the mechanical, chemical, and corrosion …
Both states, ie, clusters and precipitates, alter the mechanical, chemical, and corrosion …
Effect of a micro-scale dislocation pileup on the atomic-scale multi-variant phase transformation and twinning
In this paper, we perform concurrent atomistic–continuum (CAC) simulations to assess the
contribution of the internal stress induced by the microscale dislocation pileup at an …
contribution of the internal stress induced by the microscale dislocation pileup at an …
Wedge disclination description of emergent core-shifted grain boundaries at free surfaces
Emergent grain boundaries at free surface control material properties such as nanomaterial
strength, catalysis, and corrosion. Recently the restructuring of emergent boundaries on …
strength, catalysis, and corrosion. Recently the restructuring of emergent boundaries on …