Journal ArticleDOI
Growth Twins and Deformation Twins in Metals
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TLDR
In this article, a review of recent basic research on two classes of twins: growth twins and deformation twins is presented, focusing primarily on studies that aim to understand, via experiments, modeling, or both, the causes and effects of twinning at a fundamental level.Abstract:
This article reviews recent basic research on two classes of twins: growth twins and deformation twins. We focus primarily on studies that aim to understand, via experiments, modeling, or both, the causes and effects of twinning at a fundamental level. We anticipate that, by providing a broad perspective on the latest advances in twinning, this review will help set the stage for designing new metallic materials with unprecedented combinations of mechanical and physical properties.read more
Citations
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Towards strength–ductility synergy through the design of heterogeneous nanostructures in metals
TL;DR: In this paper, the authors review recent advances in overcoming this tradeoff, by purposely deploying heterogeneous nanostructures in an otherwise single-phase metal, and advocate this broad vision to help guide future innovations towards a synergy between high strength and high ductility.
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Mechanical properties of high-entropy alloys with emphasis on face-centered cubic alloys
TL;DR: In this paper, the authors review the principal mechanical properties of multi-principal element alloys with emphasis on the face-centered cubic systems, such as the CrCoNi-based alloys, and suggest their favorable mechanical properties and ease of processing by conventional means suggest extensive utilization in many future structural applications.
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Defect-interface interactions
TL;DR: In this paper, the authors review the present understanding of defect-interface interactions in single-phase and two-phase metal and oxide nanocomposites, emphasizing how interface structure affects interactions with point, line, and planar defects.
Journal ArticleDOI
Extra strengthening and work hardening in gradient nanotwinned metals.
TL;DR: This work indicates that simultaneous enhancement in strength and work hardening can be achieved by solely increasing the structural gradient in pure Cu, and provides insights into combining structural gradients at different length scales in order to push forward the strength limit of materials.
Journal ArticleDOI
Radiation damage in nanostructured materials
Xinghang Zhang,Khalid Hattar,Youxing Chen,Lin Shao,Jin Li,Cheng Sun,Kaiyuan Yu,Nan Li,Mitra L. Taheri,Haiyan Wang,Jian Wang,Michael Nastasi +11 more
TL;DR: In this paper, the authors summarized and analyzed the current understandings on the influence of various types of internal defect sinks on reduction of radiation damage in primarily nanostructured metallic materials, and partially on nanoceramic materials.
References
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Book
Theory of Dislocations
John Price Hirth,Jens Lothe +1 more
TL;DR: Dislocations in Isotropic Continua: Effects of Crystal Structure on Dislocations and Dislocation-Point-Defect Interactions at Finite temperatures.
Journal ArticleDOI
Ultrahigh strength and high electrical conductivity in copper
TL;DR: Pure copper samples with a high density of nanoscale growth twins are synthesized and show a tensile strength about 10 times higher than that of conventional coarse-grained copper, while retaining an electrical conductivity comparable to that of pure copper.
Journal ArticleDOI
Strengthening Materials by Engineering Coherent Internal Boundaries at the Nanoscale
TL;DR: An approach to optimize strength and ductility is outlined by identifying three essential structural characteristics for boundaries: coherency with surrounding matrix, thermal and mechanical stability, and smallest feature size finer than 100 nanometers.
Journal ArticleDOI
Revealing the Maximum Strength in Nanotwinned Copper
TL;DR: The maximum strength of nanotwinned copper samples with different twin thicknesses is investigated, finding that the strength increases with decreasing twin thickness, reaching a maximum at 15 nanometers, followed by a softening at smaller values that is accompanied by enhanced strain hardening and tensile ductility.
Journal ArticleDOI
The onset of twinning in metals: a constitutive description
TL;DR: In this article, a constitutive expression for the twinning stress in BCC metals is developed using dislocation emission from a source and the formation of pile-ups, as rate-controlling mechanism.