Refractory multi-principal element alloys (RMPEAs) draw great interest with their superior
mechanical properties and extremely high melting points, yet the strengthening mechanism …

Grain boundaries (GBs) in polycrystalline materials act as impediments to dislocation motion
and result in strengthening. Understanding slip transmission through GBs, specifically twin …

The integration of traditional “brick-and-mortar” structure with graphene additives
demonstrates remarkable efficiency for enhancing the toughness of metal matrix …

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 …

Grain boundary plasticity dominates the mechanical behavior of materials, and the
introduction of intragranular nanotwins can achieve coordination between strength and …

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

Despite much experimental and simulation effort, the existence of a Hall-Petch to inverse
Hall-Petch transition in nanocrystalline ceramics remains elusive. By employing molecular …

Twinning is a significant deformation mode in zirconium (Zr). Here we investigated the
primary displacement cascades near the twin boundary (TB) and mechanical properties in …

Misfit dislocations at bimetal interfaces play a key role in interface-induced deformation
mechanism, which in turn determines the strengthening and softening at different length …

Molecular dynamics simulations are performed to explore nanoindentation characteristics of
tungsten, and the influences of grain size, indenter velocity, indenter size, and temperature …