Preparation of nanocrystalline high-entropy alloys via cryomilling of cast ingots

Preparation of nanocrystalline high-entropy alloys via cryomilling of cast ingots J Mater Sci MECHANOCHEMICAL SYNTHESIS Mechanochemical Synthesis Preparation of nanocrystalline high-entropy alloys via cryomilling of cast ingots 1 2 1, Nirmal Kumar , C. S. Tiwary , and Krishanu Biswas * Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India Department of Materials Science and Engineering, Indian Institute of Technology Gandhinagar, Gandhinagar 382355, India Received: 16 February 2018 ABSTRACT Accepted: 21 May 2018 The advancement of nanotechnology demands large-scale preparation of nanocrystalline powder of innovative materials. High-entropy alloys (HEAs) Springer Science+Business exhibit unique properties: mechanical, thermal, magnetic etc., making them Media, LLC, part of Springer potentials candidates for applications in energy, environment and biomaterials Nature 2018 etc. Thus, there is a need to develop novel synthesis methods to prepare nanocrystalline high-purity HEAs in large quantity. Conventional mechanical alloying of the multicomponent metallic powder mixture requires larger milling time and it is prone to contaminations and phase transformation. The present investigation reports a unique approach, involving casting followed by cry- omilling, leading to formation of nanocrystalline HEAs powder, which are relatively contaminations free with narrow size distribution. Using examples of two FCC and one BCC single-phase HEAs, it has been shown that large-scale nanocrystalline HEAs http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Science Springer Journals

Preparation of nanocrystalline high-entropy alloys via cryomilling of cast ingots

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Publisher
Springer US
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Materials Science; Materials Science, general; Characterization and Evaluation of Materials; Polymer Sciences; Continuum Mechanics and Mechanics of Materials; Crystallography and Scattering Methods; Classical Mechanics
ISSN
0022-2461
eISSN
1573-4803
D.O.I.
10.1007/s10853-018-2485-z
Publisher site
See Article on Publisher Site

Abstract

J Mater Sci MECHANOCHEMICAL SYNTHESIS Mechanochemical Synthesis Preparation of nanocrystalline high-entropy alloys via cryomilling of cast ingots 1 2 1, Nirmal Kumar , C. S. Tiwary , and Krishanu Biswas * Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India Department of Materials Science and Engineering, Indian Institute of Technology Gandhinagar, Gandhinagar 382355, India Received: 16 February 2018 ABSTRACT Accepted: 21 May 2018 The advancement of nanotechnology demands large-scale preparation of nanocrystalline powder of innovative materials. High-entropy alloys (HEAs) Springer Science+Business exhibit unique properties: mechanical, thermal, magnetic etc., making them Media, LLC, part of Springer potentials candidates for applications in energy, environment and biomaterials Nature 2018 etc. Thus, there is a need to develop novel synthesis methods to prepare nanocrystalline high-purity HEAs in large quantity. Conventional mechanical alloying of the multicomponent metallic powder mixture requires larger milling time and it is prone to contaminations and phase transformation. The present investigation reports a unique approach, involving casting followed by cry- omilling, leading to formation of nanocrystalline HEAs powder, which are relatively contaminations free with narrow size distribution. Using examples of two FCC and one BCC single-phase HEAs, it has been shown that large-scale nanocrystalline HEAs

Journal

Journal of Materials ScienceSpringer Journals

Published: May 29, 2018

References

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