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 …
Phase transformations, fracture, and other structural changes in inelastic materials
VI Levitas - International Journal of Plasticity, 2021 - Elsevier
Review of selected fundamental topics on the interaction between phase transformations,
fracture, and other structural changes in inelastic materials is presented. It mostly focuses on …
fracture, and other structural changes in inelastic materials is presented. It mostly focuses on …
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 …
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 …
Exceptional tensile ductility and strength of a BCC structure CLAM steel with lamellar grains at 77 kelvin
J Zhou, J Wang, J Ren, RO Ritchie, Z Wang… - International Journal of …, 2024 - Elsevier
The low-temperature tensile brittleness of body-centered cubic (BCC) metals and alloys can
seriously compromise their service applications. In this study, we prepared a BCC structured …
seriously compromise their service applications. In this study, we prepared a BCC structured …
Role of layer thickness and dislocation distribution in confined layer slip in nanolaminated Nb
Confined layer slip (CLS) is considered as the primary mechanism for plastic deformation in
nanolaminates. It depicts the confined motion of a single dislocation between two parallel …
nanolaminates. It depicts the confined motion of a single dislocation between two parallel …
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 …
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 …
Role of stacking fault energy in confined layer slip in nanolaminated Cu
Metallic nanolaminates exhibit superior strength compared to their coarsely laminated
counterparts. For layer thicknesses in the range of a few to tens of nanometers, the strength …
counterparts. For layer thicknesses in the range of a few to tens of nanometers, the strength …