Refractory multi-principal element alloys (RMPEAs) are promising materials for high-
temperature structural applications. Here, we investigate the role of short-range ordering …

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 …

The compositional heterogeneity in high-entropy alloys (HEAs) has been reported to be an
inherent entity, which significantly alters the mechanical properties of materials by tuning the …

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 …

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 …

As a common feature observed in irradiated metallic materials, the formation of dislocation
channels has been extensively studied and is considered to play a key role in irradiation …

Obstacles, such as voids and precipitates, are prevalent in crystalline materials. They
strengthen crystals by serving as barriers to dislocation glide. In this work, we develop a …

The phase-field dislocation dynamics (PFDD) model is extended to simulate cross-slip in
body-centered cubic materials. The model makes use of a non-orthogonal, body-centered …

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 …

In this work, the intragranular distributions of the densities of geometrically necessary
dislocations (GNDs) generated in a polycrystalline tantalum (Ta) sample loaded in shock …