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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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...
References
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Structural duality of 1/3⟨111⟩ twin-boundary disconnections
TL;DR: In this article, the authors investigate the structure of 1/3⟨111⟩ disconnections at Σ3 {111} twin boundaries in gold and find two distinct, relaxed structures: one with a localized core and the other with a dissociated core composed of a stacking fault terminated by a Shockley partial dislocation.
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Corroboration of a multiscale approach with all atom calculations in analysis of dislocation nucleation from surface steps
Darren Segall,C. Li,Guanshui Xu +2 more
TL;DR: In this paper, a comparative study of the influence of atomic-scale surface steps on dislocation nucleation at crystal surfaces based on an all-atom method and a hierarchal multiscale approach is presented.
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Plastic flow in solids with interfaces
Anurag Gupta,David J. Steigmann +1 more
TL;DR: In this article, a non-equilibrium theory of isothermal and diffusionless evolution of incoherent interfaces within a plastically deforming solid is developed, and the irreversible dynamics of the interface are driven by its normal motion, incoherency (slip and misorientation), and an intrinsic plastic flow; and purely by plastic deformation in the bulk away from the interface.
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Hybrid quantum/classical study of hydrogen-decorated screw dislocations in tungsten: Ultrafast pipe diffusion, core reconstruction, and effects on glide mechanism
TL;DR: In this paper, the virtual work principle was used to obtain energy barriers for dislocation glide, H segregation, and pipe diffusion in tungsten dislocations in the presence of hydrogen.
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Flow Stress of bcc Metals over a Wide Range of Temperature and Strain Rates
TL;DR: In this article, a physical-based model for the flow stress of bcc metals is presented, where both the thermally activated and viscous drag regimes are considered, and the diffusion-controlled regime at elevated temperature is also taken into account assuming the non-linear dependence of the activation volume on temperature.