Journal ArticleDOI
Grain boundary segregation, chemical ordering and stability of nanocrystalline alloys: Atomistic computer simulations in the Ni–W system
TLDR
In this paper, atomistic computer simulations are used to investigate the equilibrium solute distribution and alloying energy in nanocrystalline Ni-W alloys, and the authors conclude that these alloying are synthesized in a metastable state.About:
This article is published in Acta Materialia.The article was published on 2007-07-01. It has received 222 citations till now. The article focuses on the topics: Grain boundary & Nanocrystalline material.read more
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Design of stable nanocrystalline alloys.
TL;DR: In this paper, a theoretical framework with which stable nanostructured tungsten alloys can be designed is developed, and a nanostructure stability map based on a thermodynamic model is applied to design stable nan-structure alloys.
Design of Stable Nanocrystalline Alloys
TL;DR: A theoretical framework to create stability maps to identify potential alloys with the greatest thermal stability is developed and a candidate alloy, W-Ti, is identified and demonstrated substantially enhanced stability for the high-temperature, long-duration conditions amenable to powder-route production of bulk nanostructured tungsten.
Journal ArticleDOI
Nanostructural hierarchy increases the strength of aluminium alloys
Peter V. Liddicoat,Xiaozhou Liao,Yonghao Zhao,Yuntian Zhu,Maxim Yu. Murashkin,Enrique J. Lavernia,Ruslan Z. Valiev,Simon P. Ringer +7 more
TL;DR: Aluminium alloys are engineer to contain a hierarchy of nanostructures and possess mechanical properties that expand known performance boundaries-an aerospace-grade 7075 alloy exhibits a yield strength and uniform elongation approaching 1 GPa and 5%, respectively.
Journal ArticleDOI
Grain boundary segregation engineering in metallic alloys: A pathway to the design of interfaces
Dierk Raabe,Michael Herbig,Stefanie Sandlöbes,Yujiao Li,Darius Tytko,Margarita Kuzmina,Dirk Ponge,Pyuck-Pa Choi +7 more
TL;DR: In this article, the authors proposed a solute decoration approach to manipulate specific grain boundary structures, compositions and properties that enable useful material behavior, such as energy, mobility, structure, and cohesion.
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
Recrystallization and Related Annealing Phenomena
F.J. Humphreys,M. Hatherly +1 more
TL;DR: In this paper, the authors discuss the extent to which we are able to formulate quantitative, physically-based models which can be applied to metal-forming processes, and the subjects treated in this book are all active research areas and form a major part of at least four regular international conference series.
Journal ArticleDOI
Bulk nanostructured materials from severe plastic deformation
TL;DR: In this article, the authors present methods of severe plastic deformation and formation of nanostructures, including Torsion straining under high pressure, ECA pressing, and multiple forging.
Journal ArticleDOI
Mechanical properties of nanocrystalline materials
TL;DR: The mechanical properties of nanocrystalline materials are reviewed in this paper, with emphasis on their constitutive response and on the fundamental physical mechanisms, including the deviation from the Hall-Petch slope and possible negative slope, the effect of porosity, the difference between tensile and compressive strength, the limited ductility, the tendency for shear localization, fatigue and creep responses.
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.