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
Optimized many body potential for fcc metals
TL;DR: In this article, a formalism for optimized many body (OMB) potentials to describe the interatomic interactions in fcc metals is described. But the OMB approach is restricted to first nearest neighbors only, and employs a third-order Legendre polynomial to distinguish fcc and hcp structures, the strength of which can be adjusted to match the intrinsic stacking fault energy.
24
The Mechanical Behavior and Deformation of Bicrystalline Nanowires.
Garritt J. Tucker,Zachary H. Aitken,Julia R. Greer,Christopher R. Weinberger +3 more
- 01 Jan 2013
TL;DR: In this article, the competition between free surfaces and internal grain boundaries as preferential sites for dislocation nucleation during aluminum bicrystalline nanowires was investigated using molecular dynamics simulations at room temperature.
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In situ observation of deformation processes in nanocrystalline face-centered cubic metals.
TL;DR: Conventional deformation mechanisms are still active in nanocrystalline metals but with different weighting as compared with conventional materials with coarser grains, including PdxAu1−x thin films.
Transmission electron microscopy characterization of TiN/SiNx multilayered coatings plastically deformed by nanoindentation
TL;DR: In this article, the deformation behavior of these films provided an experimental support for the absence of dislocation activity in grains of 5-nm size, which is the predominant failure mechanism of these coatings.
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Impact of interfaces on the radiation response and underlying defect recovery mechanisms in nanostructured Cu-Fe-Ag
Michael Wurmshuber,David Frazer,Andrea Bachmaier,Yongqiang Wang,Peter Hosemann,Daniel Kiener +5 more
TL;DR: In this paper, the influence of different interface types and spacings on radiation effects in these materials was investigated using nanoindentation, showing that interface-rich bulk nanocomposites showed a slight decrease in hardness after irradiation, whereas the properties of a nanoporous material remain mostly unchanged.
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