Single-phase body-centered cubic (bcc) refractory medium-or high-entropy alloys can retain
compressive strength at elevated temperatures but suffer from extremely low tensile ductility …

Atomistic-based multiscale and molecular dynamics modeling are powerful tools to simulate
the localized strain problems, offering tremendous opportunities to bridge the knowledge …

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 …

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 …

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 …

We present a new classical interatomic potential designed for simulation of the W-Mo-Nb
system. The angular-dependent format of the potential allows for reproduction of many …

First principles calculation is conducted to systematically investigate the effects of alloying
elements (Mo, Re, Os, Ta, Ti, and V) on phase stability, stacking fault energy, ductility, and …

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 …

Metallic nanowires are widely employed as small-scale structural materials due to their
characteristically small volume and high strength compared with their bulk counterparts …

When high-Peierls-barrier materials such as iron (Fe) and tungsten (W) are deformed,
dislocation kinks can be easily activated. The subsequent kink dynamics may dictate the …