The conventional role played by precipitates in crystalline solids is in blocking the motion of
dislocations and for consequentially hardening, a mechanism attributed to Orowan's finding …

The interaction between glissile dislocations and precipitates within a continuum is
responsible for marked increases in material strength. Due to their desirable engineering …

Traditionally, precipitates in a material are thought to serve as obstacles to dislocation glide
and cause hardening of the material. This conventional wisdom, however, fails to explain …

Many common engineering alloys are strengthened by precipitates with plate-like
geometries. The mechanics of precipitation strengthening, while well resolved with spherical …

Whereas conventional precipitation hardening is well-known to feature a single hardness
peak, recently, double-peak precipitation hardening was observed, where the first peak …

In an attempt to better understand the effect of the difference between the shear moduli of
the particle and matrix on the flow stress and the work hardening, a numerical approach …

Solutes added to stabilize nano-crystalline metals against grain growth, may segregate to
grain boundaries and triple junctions where they can affect the process of the dislocation …

Dispersions of nanoscale precipitates in metallic alloys have been known to play a key role
in strengthening, by increasing their strain hardenability and providing resistance to …

The classical precipitation-strengthening models, described by either the Orowan
mechanism or the cutting mechanism, rely on a single average size and dispersion of the …

This work examines the interaction of screw dislocations with Guinier–Preston (GP) zones
using atomistic simulations. Both Orowan looping and cross-slip mechanisms are found to …