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deformation twins in nanocrystalline materials . Attention here is focused on the GB dynamics in metallic nanocrystals, by means of well-designed in situ nanomechanical testing integrated with molecular dynamics ...
Abstract A theoretical model of microscopic mechanisms of the nucleation and development of deformation twins in nanocrystalline materials has been developed. Within the model, we have studied ...
Nanocrystalline - twinned materials exhibit significantly higher strength and ductility than nanocrystalline face-centered cubic (f.c.c.) materials without twins . In this investigation, a dislocation ...
Nanoscale fracture processes initiated at intersections of deformation twins and grain boundaries (GBs) in nanocrystalline and ultrafine-grained materials are theoretically described. Within ...
Experiments have revealed that stress-driven grain growth can strongly affect the movement and distribution of the dislocations in nanocrystalline materials . Meanwhile, nanotwinning often originates ...
will examine the dynamic behavior of nanocrystalline aluminum using atomistic simulations. The dynamic behavior of this material is discussed in terms of competing deformation mechanisms--slip and twinning ...
A theoretical model is developed to investigate the effects of the nanoscale twin and the dislocation pileup at the twin boundary on crack blunting in nanocrystalline materials . In the model ...
The effect of growth- twins on friction, wear, and microstructural evolution of nanocrystalline (NC) aluminum is investigated using molecular dynamics simulations. NC Al with growth- twins has been ...
A new micromechanism of nucleating deformation twins in nanocrystalline and ultrafine-grained materials under action of severe mechanical stresses has been proposed and theoretically described ...
, grainboundaries and twin boundaries existing in nanocrystalline copper, as well as the highprobability for atoms to move across grains in nanocrystalline materials . Nanocrystalline metals demonstrate a range ...
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