Grain growth of nanocrystalline aluminum under tensile deformation: A combined in situ TEM and atomistic study
Nanocrystalline Al thin films have been strained in situ in a transmission electron
microscope using two separate nanomechanical techniques involving a push-to-pull device …
microscope using two separate nanomechanical techniques involving a push-to-pull device …
Increased strain rate sensitivity due to stress-coupled grain growth in nanocrystalline Al
A combined experimental/simulation approach has been used to characterize the
underlying deformation mechanisms associated with stress-assisted grain growth in …
underlying deformation mechanisms associated with stress-assisted grain growth in …
In situ TEM observations of fast grain-boundary motion in stressed nanocrystalline aluminum films
Free-standing nanocrystalline Al thin films have been strained in situ in a transmission
electron microscope at room-temperature. Extensive grain-boundary migration accompanies …
electron microscope at room-temperature. Extensive grain-boundary migration accompanies …
Experimental observations of stress-driven grain boundary migration
In crystalline materials, plastic deformation occurs by the motion of dislocations, and the
regions between individual crystallites, called grain boundaries, act as obstacles to …
regions between individual crystallites, called grain boundaries, act as obstacles to …
Plastic deformation of nanocrystalline aluminum at high temperatures and strain rate
The deformation of nanocrystalline aluminum was studied using molecular dynamics
simulation at homologous temperatures up to 0.97. The microstructures and stress–strain …
simulation at homologous temperatures up to 0.97. The microstructures and stress–strain …
Competing grain-boundary-and dislocation-mediated mechanisms in plastic strain recovery in nanocrystalline aluminum
Recent experiments have demonstrated that plastic strains in nanocrystalline aluminum and
gold films with grain sizes on the order of 50 nm are partially recoverable. To reveal the …
gold films with grain sizes on the order of 50 nm are partially recoverable. To reveal the …
Stress‐driven surface topography evolution in nanocrystalline Al thin films
Stress‐assisted grain growth at room temperature is identified as a plastic deformation
mechanism in nanocrystalline thin films. Unique surface relief is attributed to the direct …
mechanism in nanocrystalline thin films. Unique surface relief is attributed to the direct …
Athermal critical stresses for dislocation propagation in nanocrystalline aluminium
Molecular dynamics simulations investigating the mechanical properties of nanocrystalline
Al have revealed the importance of both dislocation nucleation at grain boundaries and …
Al have revealed the importance of both dislocation nucleation at grain boundaries and …
Influence of grain boundary structure and topology on the plastic deformation of nanocrystalline aluminum as studied by atomistic simulations
Nanocrystalline materials, with grain sizes below 100 nm, have been the subject of many
research studies in the recent past. At these reduced grain sizes, grain boundaries (GBs) …
research studies in the recent past. At these reduced grain sizes, grain boundaries (GBs) …
Quantitative grain growth and rotation probed by in-situ TEM straining and orientation mapping in small grained Al thin films
Despite abundant literature claims of mechanisms involving grain boundaries (GB)
mechanisms in the deformation of nanocrystalline metals and alloys, few are actually …
mechanisms in the deformation of nanocrystalline metals and alloys, few are actually …