High-Entropy Alloys for Advanced Nuclear Applications
Ed Pickering,Alexander Carruthers,Paul J. Barron,Simon C. Middleburgh,David E.J. Armstrong,Amy S. Gandy +5 more
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TLDR
In this paper, the authors assess the work done to date in the field of high-entropy alloys for nuclear applications, provide critical insight into the conclusions drawn, and highlight possibilities and challenges for future study.Abstract:
The expanded compositional freedom afforded by high-entropy alloys (HEAs) represents a unique opportunity for the design of alloys for advanced nuclear applications, in particular for applications where current engineering alloys fall short. This review assesses the work done to date in the field of HEAs for nuclear applications, provides critical insight into the conclusions drawn, and highlights possibilities and challenges for future study. It is found that our understanding of the irradiation responses of HEAs remains in its infancy, and much work is needed in order for our knowledge of any single HEA system to match our understanding of conventional alloys such as austenitic steels. A number of studies have suggested that HEAs possess ‘special’ irradiation damage resistance, although some of the proposed mechanisms, such as those based on sluggish diffusion and lattice distortion, remain somewhat unconvincing (certainly in terms of being universally applicable to all HEAs). Nevertheless, there may be some mechanisms and effects that are uniquely different in HEAs when compared to more conventional alloys, such as the effect that their poor thermal conductivities have on the displacement cascade. Furthermore, the opportunity to tune the compositions of HEAs over a large range to optimise particular irradiation responses could be very powerful, even if the design process remains challenging.read more
Citations
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The effects of irradiation on CrMnFeCoNi high-entropy alloy and its derivatives
TL;DR: In this article, a review of face-centred cubic CrMnFeCoNi, also known as the Cantor alloy, and the irradiation response of the Cantor Alloy and its sub-systems is presented.
Journal ArticleDOI
The effects of irradiation on CrMnFeCoNi high-entropy alloy and its derivatives
TL;DR: In this paper , a review of face-centred cubic CrMnFeCoNi, also known as the Cantor alloy, and the irradiation response of the Cantor Alloy and its sub-systems is presented.
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Recent Progress with BCC-Structured High-Entropy Alloys
TL;DR: In this article , the authors systematically review the mechanical properties of body-centered cubic (BCC)-structured high-entropy alloys (HEAs) and analyze the effect of alloying on their mechanical properties.
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Superior radiation tolerance via reversible disordering–ordering transition of coherent superlattices
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Effects of Fe atoms on hardening of a nickel matrix: Nanoindentation experiments and atom-scale numerical modeling
L. Kurpaska,Francesco Javier Dominguez-Gutiérrez,Yu Zhang,K. Mulewska,Hui Bei,A. Kosinska,Witold Chrominski,Iwona Jozwik,René Alvarez-Donado,Sofia Papanikolaou,Jacek Jagielski,Marquinez Jose Inaki Alava +11 more
TL;DR: In this paper , a combined experimental and atomistic-based computational approach via nanoindentation tests was used to study the significant hardening effect due to Fe concentrations in Ni-based alloys with face-centered-cubic structure.
References
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Nanostructured High-Entropy Alloys with Multiple Principal Elements: Novel Alloy Design Concepts and Outcomes
Jien-Wei Yeh,Swe-Kai Chen,Su-Jien Lin,Jon-Yiew Gan,Tsung-Shune Chin,Tsung-Shune Chin,Tao-Tsung Shun,Chun-Huei Tsau,Shou-Yi Chang +8 more
TL;DR: A new approach for the design of alloys is presented in this paper, where high-entropy alloys with multi-principal elements were synthesized using well-developed processing technologies.
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A critical review of high entropy alloys and related concepts
Daniel B. Miracle,Oleg N. Senkov +1 more
TL;DR: High entropy alloys (HEAs) are barely 12 years old as discussed by the authors, and the field has stimulated new ideas and inspired the exploration of the vast composition space offered by multi-principal element alloys.
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Microstructures and properties of high-entropy alloys
TL;DR: The concept of high entropy introduces a new path of developing advanced materials with unique properties, which cannot be achieved by the conventional micro-alloying approach based on only one dominant element as mentioned in this paper.
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A fracture-resistant high-entropy alloy for cryogenic applications
Bernd Gludovatz,Anton Hohenwarter,Dhiraj Catoor,Edwin H. Chang,Easo P. George,Easo P. George,Robert O. Ritchie,Robert O. Ritchie +7 more
TL;DR: This work examined a five-element high-entropy alloy, CrMnFeCoNi, which forms a single-phase face-centered cubic solid solution, and found it to have exceptional damage tolerance with tensile strengths above 1 GPa and fracture toughness values exceeding 200 MPa·m1/2.
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Special quasirandom structures.
TL;DR: It is shown that it is possible to design special quasirandom structures'' (SQS) that mimic for small {ital N} the first few, physically most relevant radial correlation functions of a perfectly random structure far better than the standard technique does.