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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Journal ArticleDOI
Structure and Strength of Dislocation Junctions: An Atomic Level Analysis
David Rodney,Rob Phillips +1 more
TL;DR: In this paper, the quasicontinuum method is used to simulate three-dimensional Lomer-Cottrell junctions both in the absence and in the presence of an applied stress.
Journal ArticleDOI
A three-dimensional continuum theory of dislocation systems: kinematics and mean-field formulation
TL;DR: In this paper, the authors propose a dislocation density measure which is able to account for the evolution of three-dimensional curved dislocations and a self-consistent theory is built upon the measure which accounts for both the long-range interactions of dislations and their short-range self-interaction which is incorporated via a line-tension approximation.
Journal ArticleDOI
Thermodynamic theory of dislocation-mediated plasticity
TL;DR: In this paper, the theory of polycrystalline plasticity in externally driven, nonequilibrium situations was reformulated by writing equations of motion for the flow of energy and entropy associated with dislocations.
Book ChapterDOI
Chapter 64 - Dislocation Core Effects on Mobility
TL;DR: In this article, the atomic structure and interactions in the dislocation core and their effects on dislocation mobility from the standpoint of theoretical concepts, physical models and simulation studies, with due consideration of relevant experimental results.
Estimating the strength of single-ended dislocation sources in micrometer-sized single crystals
TL;DR: In this article, 3D discrete dislocation dynamics simulations of micrometer-sized volumes are used to calculate the effects of anisotropy of dislocation line tension (increasing Poisson's ratio, {nu}) on the strength of single-ended dislocation sources and, to compare them with double-ended sources of equal length.
References
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Journal ArticleDOI
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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...