Grain size stabilization of mechanically alloyed nanocrystalline Fe-Zr alloys by forming highly dispersed coherent Fe-Zr-O nanoclusters

Chen, Y.Z.; Wang, K.; Shan, G.B.; Ceguerra, Anna V.; Li-jiang, Huang; Dong, Hao; Cao, Lijun; Ringer, Simon P.; Liu, F.

doi:10.1016/j.actamat.2018.07.070

Cited by 43 publications

(9 citation statements)

References 45 publications

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“…Besides stabilizing finer grain sizes, introducing nanoparticles into a material can increase the strength of the composite by dispersion strengthening. If a high density of NDs would be located in the grain interior, these NDs would certainly lead to a further enhancement of the yield strength, which has been observed, for example, in nanocrystalline Fe-Zr alloys [36,37].…”

Section: Impact Of Nds On Mechanical Propertiesmentioning

confidence: 91%

Synthesis of nanodiamond reinforced silver matrix nanocomposites: Microstructure and mechanical properties

Katzensteiner

Rosalie

Pippan

et al. 2020

Materials Science and Engineering: A

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Nanodiamond reinforced silver matrix nanocomposites with different nanodiamond content are produced from pure silver and nanodiamond powders by a combination of two severe plastic deformation methods, ball-milling and high-pressure torsion (HPT). The ball milling parameters are varied to improve the distribution of the nanodiamonds in the powder blends.An optimized processing route combining both processes has been developed to achieve a homogenous dispersion of small nanodiamond particles in a nanocrystalline silver matrix. The microstructure of these nanocomposites was characterized by scanning and transmission electron microscopy. The mechanical properties were characterized by microhardness measurements and tensile tests. An increasing amount of nanodiamonds (up to 5 wt% and 15 vol%, respectively) can raise the microhardness by up to 70 % and the tensile strength by up to 60 % of the values achieved in HPT deformed pure silver. The microhardness and tensile strength is about 5 times higher than microcrystalline pure silver.

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Section: Impact Of Nds On Mechanical Propertiesmentioning

confidence: 91%

Synthesis of nanodiamond reinforced silver matrix nanocomposites: Microstructure and mechanical properties

Katzensteiner

Rosalie

Pippan

et al. 2020

Materials Science and Engineering: A

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“…Clustering USYD (University of Sydney) reports on how to execute two clustering algorithms reproducibly via a cloudbased analysis platform called Atom Probe Workbench (CVL) (Ceguerra et al, 2014). The test case exemplifies how to perform clustering methods from the literature (Stephenson et al, 2007;Chen et al, 2018 (Kühbach et al 2021), the functionalities of which will be discussed in a forthcoming publication. 10.…”

Section: Resultsmentioning

confidence: 99%

Community-Driven Methods for Open and Reproducible Software Tools for Analyzing Datasets from Atom Probe Microscopy

Kühbach

London

Wang

et al. 2022

Microscopy and Microanalysis

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“…Follow-on studies have indicated enhanced stabilization through the uncontrolled or controlled formation of grain boundary oxides. [94,[129][130][131][132][133][134][135][136][137] To study the effect of such impurities and solutes on the stability against grain growth during high-temperature deformation, Lin et al [138] studied a 5083 Al bulk alloy produced via cryomilling and hot-isostatic pressing consolidation (HIP) with~244 nm grain sizes. After these processing steps, they discovered that the solutes and precipitates at the grain boundaries suppressed grain growth during annealing at 673 K for 5 hours (~262 nm post-annealing); however, when heated the sample at the same temperature for 1 hour, then quickly extruded (AR = 10, true strain~2.30) and quenched it, the grains had grown to~647 nm.…”

Section: On the Role Of ''Dirt'' On Grain Boundary Stabilizationmentioning

confidence: 99%

Building on Gleiter: The Foundations and Future of Deformation Processing of Nanocrystalline Metals

Mathaudhu

2020

Metall Mater Trans A

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In 1989, fueled by his prior reports and findings, Prof. Herbert Gleiter published a seminal work on the synthesis, processing, and possibilities for nanocrystalline materials. This spark exploded into the field of bulk nanocrystalline metals by severe plastic deformation processing, with the primary driver being attaining the ultimate strength of a metal through refinement of the grain sizes to a level approaching the theoretically possible limits. This paper will briefly explore the historical development of SPD and based on Turnbull's strategy of ''energizing and quenching'' materials to attain a desirable metastable state, present thoughts on incipient-related areas of exploration, including thermal stabilization through solute additions, the role of trace impurities and interstitials, the smallest grain size achievable (both theoretically and practically), and the captivating yet hazy character and role of the grain boundary. Lastly, some new approaches to making and then controlling the behavior of nanocrystalline materials will be presented. At each stage, opportunities for future study will be raised. On the 50th Anniversary of Metallurgical and Materials Transactions A, it is hoped that this report will build off the seed planted by Gleiter and inspire new work and collaborations in the years to come.

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Grain size stabilization of mechanically alloyed nanocrystalline Fe-Zr alloys by forming highly dispersed coherent Fe-Zr-O nanoclusters

Cited by 43 publications

References 45 publications

Synthesis of nanodiamond reinforced silver matrix nanocomposites: Microstructure and mechanical properties

Synthesis of nanodiamond reinforced silver matrix nanocomposites: Microstructure and mechanical properties

Community-Driven Methods for Open and Reproducible Software Tools for Analyzing Datasets from Atom Probe Microscopy

Building on Gleiter: The Foundations and Future of Deformation Processing of Nanocrystalline Metals

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