Deformation in nanocrystalline metals
TL;DR: In this article, the authors review the current views on deformation mechanisms in nanocrystalline, face-centered cubic metals based on insights gained by atomistic computer simulations and compare these insights with recent striking experimental observations that can be compared with predictions made by the simulations.
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About: This article is published in Materials Today. The article was published on 01 May 2006. and is currently open access. The article focuses on the topics: Nanocrystalline material.
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Citations
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References
Molecular dynamics study of melting and freezing of small Lennard-Jones clusters
TL;DR: In this paper, the properties of small clusters of Lennard-Jones atoms were studied by using molecular dynamics simulations, and it was found that these clusters undergo a transition, analogous to a melting transition for bulk materials, from a low-energy solidlike structure at low temperatures to a set of higher energy liquidlike structures at high temperatures.
3K
Dislocation nucleation and defect structure during surface indentation
TL;DR: In this paper, an atomistic imaging of dislocation nucleation during displacement controlled indentation on a passivated surface is presented, where defects are located and imaged by local deviations from centrosymmetry.
2.1K
Mechanical behavior of nanocrystalline metals and alloys
TL;DR: In this article, the authors present an overview of the mechanical properties of nanocrystalline metals and alloys with the objective of assessing recent advances in the experimental and computational studies of deformation, damage evolution, fracture and fatigue, and highlighting opportunities for further research.
1.9K
Dislocation nucleation from a crack tip : an analysis based on the Peierls concept
TL;DR: In this paper, a periodic relation between shear stress and atomic shear displacement is assumed to hold along the most highly stressed slip plane emanating from a crack tip, which allows some small slip displacement to occur near the tip in response to small applied loading and, with increase in loading, the incipient dislocation configuration becomes unstable and leads to a fully formed dislocation which is driven away from the crack.
1.5K