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
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Plastic deformation behavior during unloading in compressive cyclic test of nanocrystalline copper
Jiangjiang Hu,Jinyu Zhang,Zhonghao Jiang,Xiangdong Ding,Yusheng Zhang,Shuang Han,Jun Sun,Jianshe Lian +7 more
TL;DR: In this article, the experimental finding of significant plastic deformation that emerges in the unloading regime in the compressive cyclic test at room temperature of nanocrystalline Cu was reported.
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A nonplanar Peierls–Nabarro model and its application to dislocation cross-slip
TL;DR: In this paper, a semidiscrete Peierls-Nabarro model is introduced to study dislocation spreading at more than one slip plane, such as dislocation cross-slip and junctions.
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Detection of helium bubble formation at fcc-bcc interfaces using neutron reflectometry
TL;DR: In this paper, the critical helium fluence required to form He bubbles at interfaces between fcc and bcc metals was found to be stable at fcc-bcc interfaces prior to bubble formation.
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Rotating lattice single crystal architecture on the surface of glass
TL;DR: A novel approach to fabricate RLS crystal lines and 2D layers of unlimited dimensions via a recently discovered solid-to-solid conversion process using a laser to heat a glass to its crystallization temperature but keeping it below the melting temperature is reported.
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Shear melting of a hexagonal columnar crystal by proliferation of dislocations.
Laurence Ramos,François Molino +1 more
TL;DR: The analysis of the shear-thinning regime below the melting with that of synchrotron x-ray scattering data under shear proposes the melting to be due to a proliferation of dislocations, whose density is determined by both techniques to vary as a power law of theShear rate with a 2/3 exponent, as expected for a creep model of crystalline solids.
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...