Recent progress in the phase-field dislocation dynamics method
S Xu - Computational Materials Science, 2022 - Elsevier
The phase-field dislocation dynamics (PFDD) method, originated in 2002, is a continuum
dislocation model that uses order parameters to describe dislocation slips in crystalline …
dislocation model that uses order parameters to describe dislocation slips in crystalline …
The effect of local chemical ordering on Frank-Read source activation in a refractory multi-principal element alloy
In this work, we investigate the operation of Frank-Read (FR) sources in a refractory multi-
principal element alloy (MPEA). Simulations of discrete dislocation motion in MPEAs is …
principal element alloy (MPEA). Simulations of discrete dislocation motion in MPEAs is …
Local slip resistances in equal-molar MoNbTi multi-principal element alloy
In this work, we calculate the local slip resistances (LSRs) in equal-molar MoNbTi multi-
principal element alloy via molecular static simulations. We consider dislocations of either …
principal element alloy via molecular static simulations. We consider dislocations of either …
Dislocation transmission across Σ3 {112} incoherent twin boundary: a combined atomistic and phase-field study
Grain boundaries (GBs) in polycrystalline materials act as impediments to dislocation motion
and result in strengthening. Understanding slip transmission through GBs, specifically twin …
and result in strengthening. Understanding slip transmission through GBs, specifically twin …
Interaction of extended dislocations with nanovoid clusters
Voids of nanoscale dimensions in irradiated metals can act as obstacles to dislocation
motion and cause strengthening. In this work, nanovoid strengthening and the influences of …
motion and cause strengthening. In this work, nanovoid strengthening and the influences of …
Generalized stacking fault energies and Peierls stresses in refractory body-centered cubic metals from machine learning-based interatomic potentials
The generalized stacking fault energies (GSFE) and Peierls stresses are strongly related to
the mechanical properties of refractory metals. In this work, the GSFE curves and Peierls …
the mechanical properties of refractory metals. In this work, the GSFE curves and Peierls …
Frank-Read source operation in six body-centered cubic refractory metals
Abstract The Frank-Read (FR) source is a well-known intragranular dislocation source that
plays an important role in size-dependent dislocation multiplication in metallic crystals. In …
plays an important role in size-dependent dislocation multiplication in metallic crystals. In …
Density functional theory calculations of generalized stacking fault energy surfaces for eight face-centered cubic transition metals
In this work, we use density functional theory to calculate the entire generalized stacking
fault energy (GSFE) surface for eight transition metals with a face-centered cubic structure …
fault energy (GSFE) surface for eight transition metals with a face-centered cubic structure …
Atomistic calculations of the generalized stacking fault energies in two refractory multi-principal element alloys
In this work, we utilize atomistic simulations to calculate the generalized stacking fault
energies (GSFEs), which are related to the dislocation glide process, on four types of slip …
energies (GSFEs), which are related to the dislocation glide process, on four types of slip …
Comparative modeling of the disregistry and Peierls stress for dissociated edge and screw dislocations in Al
Many elementary deformation processes in metals involve the motion of dislocations. The
planes of glide and specific processes dislocations prefer depend heavily on their atomic …
planes of glide and specific processes dislocations prefer depend heavily on their atomic …