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Electronic transport and phonon properties of maximally disordered alloys: From binaries to high-entropy alloys

Published online by Cambridge University Press:  21 September 2018

Sai Mu ,
Zongrui Pei ,
Xianglin Liu Open the ORCID record for Xianglin Liu [Opens in a new window]  and
George M. Stocks
Sai Mu*
Affiliation:
Materials Science & Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
Zongrui Pei
Affiliation:
Materials Science & Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
Xianglin Liu
Affiliation:
Materials Science & Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
George M. Stocks*
Affiliation:
Materials Science & Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
*
a)Address all correspondence to these authors. e-mail: [email protected]
b)e-mail: [email protected]
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Abstract

Recent discoveries of multicomponent concentrated solid-solution alloys hold promise for enhanced properties—such as enhanced mechanical properties, radiation tolerance, high temperature strength, corrosion resistance and some novel functional properties, provide a new strategy for alloy design using extreme disorder. Yet, deep understanding of these intriguing properties is complicated by the very effects of disorder that make them interesting. All the desirable properties of these alloys ultimately originate from the disorder-induced properties of underlying electronic structure, lattice dynamics, and thermodynamics. Therefore, understanding the disorder-induced fundamental physical properties is prerequisite for the science-based design of this class of alloys for practical applications. Here, we elucidate the role of extreme (maximal) substitutional disorder plays in the fundamental physics of disordered alloys and review the recently developed theoretical methodologies in modeling the basic physical properties, particularly electronic structure, magnetism, electrical transport, and lattice vibrations in multicomponent concentrated solid-solution alloys.

Keywords

alloyelectronic structureelectron transportphonon scatteringdensity functional theory
Type
Invited Review
Information
Journal of Materials Research , Volume 33 , Issue 19: Focus Issue: Fundamental Understanding and Applications of High-Entropy Alloys , 14 October 2018 , pp. 2857 - 2880
Copyright
Copyright © Materials Research Society 2018 

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Footnotes

This section of Journal of Materials Research is reserved for papers that are reviews of literature in a given area.

References

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