Dislocations in solids
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This article is published in Acta Crystallographica Section A.The article was published on 1989-07-01 and is currently open access. It has received 345 citations till now.read more
Citations
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Planar Defects and Dislocations in C40 and FCC Lattices
TL;DR: In this article, the atomic planes at three different positions ABC form the stacking along the directions in the FCC lattice and similarly along the hexagonal axis in the C40 structure in transition metal silicides.
Journal ArticleDOI
Electronic Properties of Dislocations
TL;DR: In this paper, a model of dislocations as quantum wires is proposed, which is a consequence of the high strain level on the dislocation core modi-fying locally the band structure.
Аккомодация зернограничного скольжения и повышение трещиностойкости в деформируемых нанокристаллических материалах
С.В. Бобылев,И.А. Овидько +1 more
TL;DR: In this paper, it is shown that grain boundaries can serve as effective alternative sources of mobile dislocations when the standard dislocation sources are suppressed, and the discussed dislocation emission mechanisms are responsible for some specific, experimentally observed features of plastic deformation in nanocrystalline materials.
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Compositional dependence of serrated flow in nickel binary solid solutions during high-temperature microindentation
TL;DR: In this paper, the authors show that the load increment of the quasi-elastic segments scales linearly with the load at their starting point, and the slope of such linear relationships is normalized by the solute concentration and then plotted against the diffusion rate of transition metal solutes within the nickel lattice and along dislocation cores.
Dissertation
Mechanism-based constitutive modeling of L1₂ single-crystal plasticity
TL;DR: Parks et al. as mentioned in this paper developed a single-crystal continuum plasticity model for Ni 3A1 and combined the superkink-bypassing mechanism and self-unlocking mechanism to describe the unlocking of sessile screw dislocations and the deformation-induced evolution of dislocation states in the yield anomaly region.
References
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The conflicts between strength and toughness
TL;DR: This work focuses on the interplay between the mechanisms that individually contribute to strength and toughness, noting that these phenomena can originate from very different lengthscales in a material's structural architecture.
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Strong crystal size effect on deformation twinning
TL;DR: A ‘stimulated slip’ model is developed to explain the strong size dependence of deformation twinning in crystals, and the sample size in transition is relatively large and easily accessible in experiments, making the understanding of size dependence relevant for applications.
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Atomistic modeling of interfaces and their impact on microstructure and properties
Yuri Mishin,Mark Asta,Ju Li +2 more
TL;DR: An overview of the most recent developments in the area of atomistic modeling with emphasis on interfaces and their impact on microstructure and properties of materials is given in this paper, along with some challenges and future research directions in this field.
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A review on fundamental of high entropy alloys with promising high–temperature properties
TL;DR: In this paper, the microstructures of HESAs consisting of γ and γ′ phases are similar to that of Ni-base superalloys and refractory HEAs.
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Heterostructured materials: superior properties from hetero-zone interaction
Yuntian Zhu,Kei Ameyama,Peter M. Anderson,Irene J. Beyerlein,Huajian Gao,Hyoung Seop Kim,Enrique J. Lavernia,Suveen N. Mathaudhu,Haël Mughrabi,Robert O. Ritchie,Nobuhiro Tsuji,Xiangyi Zhang,Xiaolei Wu +12 more
Abstract: Heterostructured materials are an emerging class of materials with superior performances that are unattainable by their conventional homogeneous counterparts. They consist of heterogeneous zones wi...