Density functional theory models developed over the past decade provide unique
information about the structure of nanoscale defects produced by irradiation and about the …

Ductile to brittle transition (DBT) is a well-known phenomenon responsible for deteriorating
the low temperature fracture toughness of ferritic steels. It is unambiguous to state that the …

Inorganic semiconductors with superior plasticity are highly desired in current flexible
electronics, which however are rarely discovered owing to their intrinsic covalent and ionic …

Body-centered cubic metals including steels and refractory metals suffer from an abrupt
ductile-to-brittle transition (DBT) at a critical temperature, hampering their performance and …

Understanding the competing modes of brittle versus ductile fracture is critical for preventing
the failure of body-centered cubic (BCC) refractory metals. Despite decades of intensive …

Metallic glasses are commonly brittle, as they generally fail catastrophically under uniaxial
tension. Here we show pronounced macroscopic tensile plasticity achieved in a La-based …

Focusing on metallic glasses as model systems, we review the features and mechanisms of
the β-relaxations, which are intrinsic and universal to supercooled liquids and glasses, and …

Refractory high-entropy alloys (RHEAs) are of interest for ultrahigh-temperature
applications. To overcome their drawbacks—low-temperature brittleness and poor creep …

The inherent brittle mode in dislocated lath martensitic steel is cleavage on {100} planes in
the microstructure. The transition to {100} cleavage fracture on cooling determines the …

The strain rate dependence of the brittle-to-ductile transition (BDT) temperature was
investigated in notched and un-notched miniature bars made of high-purity polycrystalline …