Journal ArticleDOI
Critical Assessment 14: High entropy alloys and their development as structural materials
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TLDR
In this paper, the authors draw on extensive experience in the development of exquisite multiphase microstructures and define new high throughput experiments and computations that must be integrated to respond to this challenge.Abstract:
The field of high entropy alloys has exploded in its first 10 years. Vast opportunities for new compositions and microstructures are offered by this idea, but current efforts have become surprisingly focused on a narrow set of systems and on the search for single phase solid solution alloys. This perspective outlines the challenge to re-engage the full range of compositional and microstructural complexity in the search for new structural metals. We draw on extensive experience in the development of exquisite multiphase microstructures and define new high throughput experiments and computations that must be integrated to respond to this challenge. Broadening the scope is expected to provide dramatic new opportunities in the field of complex concentrated alloys.read more
Citations
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Journal ArticleDOI
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.
Journal ArticleDOI
Development and exploration of refractory high entropy alloys—A review
TL;DR: In this article, the authors reviewed open literature publications on refractory high entropy alloys (RHEAs) and refractor complex concentrated alloys(RCCAs) in the period from 2010 to the end of January 2018.
Journal ArticleDOI
High-entropy alloys: a critical assessment of their founding principles and future prospects
Ed Pickering,Nick Jones +1 more
TL;DR: In this article, the effect of entropic stabilisation of solid solutions, the severe distortion of their lattices, the sluggish diffusion kinetics and the properties derived from a cocktail effect of high-entropy alloys are investigated.
Journal ArticleDOI
Design of a twinning-induced plasticity high entropy alloy
Yun Deng,Yun Deng,Cemal Cem Tasan,Konda Gokuldoss Pradeep,Konda Gokuldoss Pradeep,Hauke Springer,Aleksander Kostka,Dierk Raabe +7 more
TL;DR: In this article, a liquid metallurgy synthesized, non-equiatomic Fe 40 Mn 40 Co 10 Cr 10 high entropy alloy is designed to undergo mechanically-induced twinning upon deformation at room temperature.
Journal ArticleDOI
Phase stability and mechanical properties of novel high entropy transition metal carbides
Tyler Harrington,Joshua Gild,Pranab Sarker,Cormac Toher,Christina M. Rost,Olivia F. Dippo,Cameron McElfresh,Kevin Kaufmann,Eduardo Marin,Lucas Borowski,Patrick E. Hopkins,Jian Luo,Stefano Curtarolo,Donald W. Brenner,Kenneth S. Vecchio +14 more
TL;DR: In this paper, a new ab initio entropy descriptor was developed to assist in selection of candidate compositions for synthesis of high entropy and entropy stabilized carbides. But the proposed descriptor is not suitable for high-energy ball milling and spark plasma sintering.
References
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Journal ArticleDOI
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.
Journal ArticleDOI
Microstructural development in equiatomic multicomponent alloys
Brian Cantor,Brian Cantor,I.T.H. Chang,I.T.H. Chang,P. Knight,P. Knight,A.J.B. Vincent,A.J.B. Vincent +7 more
TL;DR: In this paper, it was shown that the confusion principle does not apply, and other factors are more important in promoting glass formation of late transition metal rich multicomponent alloys.
Journal ArticleDOI
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.