Exact(2)
The algorithm is applied to study vacancy absorption into an edge dislocation in aluminum where vacancy accumulation in the core leads to nucleation of a double-jog that then operates as a sink for additional vacancies; this corresponds to the initial stages of dislocation climb modeled with explicit atomistic resolution.
From the TEM dark-field images and the temperature-dependent grain-size distribution, it can be concluded that during these early stages of dislocation recovery the grain size decreases by a factor of 2 by heating (cf. Fig. 6).
Similar(58)
On the other hand, it is such unrecovered energy that would make the material enter a stable stage of dislocation substructure earlier during cycling.
Ms. Cremins and Ms. Castro choreographically explore states of dislocation.
The SHR true strain curves of the annealed specimens are divided into four different stages: dynamic recovery of dislocations (stage I), active TRIP (stage II), slow TRIP (stage III) and mechanical twinning (stage IV).
Three annealing stages have been detected and consistently interpreted as annealing-out of mainly point defects and their agglomerates (stage I), formation of dislocation cells and recrystallized strain-free grains (stage II) and grain growth (stage III).
Early stages of cycling show dislocation multiplication.
The focus is on the early stages of creep, where dislocation plasticity is confined to narrow γ channels.
They suggested four stages of ligamentous disruption, progressing in a radial to ulnar direction, with volar lunate dislocation (into the space of Poirier) being the final stage.
The unaltered behaviour of MBE on continued cycling shows the saturation stage where the stabilization of dislocation substructure maintains the MBE level.
During the transient stage of the formation of dislocation cells, the stress amplitude was inversely proportional to the average diameter of dislocation cells.
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