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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Spiral Patterns of Dislocations at Nodes in (111) Semi-coherent FCC Interfaces
TL;DR: Combining atomistic simulation and dislocation theory, these features are proven universal corresponding to the node density and the character of interface dislocations.
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Atomic-scale study of dislocation–stacking fault tetrahedron interactions. Part I: mechanisms
TL;DR: In this article, the authors describe the interaction between a moving dislocation and an individual stacking fault tetrahedra (SFT), which is distinguished by a small physical size of the order of ∼1-10nm.
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A new regime for mechanical annealing and strong sample-size strengthening in body centred cubic molybdenum
TL;DR: It is shown that significant mechanical annealing does occur in BCC, and a new regime of size effects in BCC metals is discovered, revealing deep connection in the dislocation dynamics of the two systems.
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Finite element simulations of martensitic phase transitions and microstructures based on a strain softening model
TL;DR: In this article, a new approach for modeling multivariant martensitic phase transitions (PT) and microstructure (MM) in elastic materials is proposed, based on a thermomechanical model for PT that includes strain softening and the corresponding strain localization during PT.
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Dislocation core reconstruction induced by carbon segregation in bcc iron
Lisa Ventelon,B. Lüthi,Emmanuel Clouet,Laurent Proville,Bernard Legrand,David Rodney,Francois Willaime +6 more
TL;DR: In this paper, it was shown that interstitial carbon atoms in ferritic steels stabilize a dislocation core configuration called a hard core which is otherwise unstable, and that at equilibrium all dislocations are expected to be fully decorated by carbon atoms.
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...