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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Solute cluster evolution during deformation and high strain hardening capability in naturally aged Al–Zn–Mg alloy
TL;DR: In this paper, the effect of solute clusters on strain hardening has been investigated by tracing the microstructure evolution during deformation through synchrotron X-ray diffraction and atom probe tomography, and the experimental evidence strongly suggest that dislocation multiplication dominates over the entire deformation process until failure in NA alloys.
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Interaction of a moving { } twin boundary with perfect dislocations and loops in a hcp metal
Anna Serra,David Bacon +1 more
TL;DR: In this article, an atomic-scale computer simulation is used to investigate the interaction of a moving twin boundary in a hcp metal with either a straight 1/3 dislocation lying perpendicular to the direction of twinning shear or a periodic row of perfect dislocation loops.
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The Role of Nitrogen on the Deformation Response of Hadfield Steel Single Crystals
TL;DR: In this paper, the role of nitrogen content on the stress-strain response of Hadfield steel (HS) single crystals under compressive loading was studied and a visco-plastic self-consistent (VPSC) model was modified to account for precipitation and twinning length scales in HS with 1.06 wt pct nitrogen.
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Dynamic dislocation–defect analysis
TL;DR: The precision strain rate sensitivity (PSRS) method was proposed by as discussed by the authors, where the change in flow stress due to a set change in strain rate is taken to be an operational measure of the activation volume and its product with the flow stress gives rise to the operational activation work.
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Interactions between lattice dislocations and twin boundaries in tungsten: A comparative atomistic simulation study
TL;DR: In this paper, two distinct models of interatomic interactions are applied: an empirical Finnis-Sinclair potential and a bond-order potential, based on quantum mechanical principles within the tight-binding electronic-structure theory.
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...