A critical review of high entropy alloys and related concepts
Daniel B. Miracle,Oleg N. Senkov +1 more
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TLDR
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.Citations
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High-entropy alloys
TL;DR: This Review discusses model high-entropy alloys with interesting properties, the physical mechanisms responsible for their behaviour and fruitful ways to probe and discover new materials in the vast compositional space that remains to be explored.
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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.
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High entropy alloys: A focused review of mechanical properties and deformation mechanisms
TL;DR: In this article, the authors provide a detailed review of the deformation mechanisms of HEAs with the complex concentrated alloys (CCAs) with the FCC and BCC structures, highlighting both successes and limitations.
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Tuning element distribution, structure and properties by composition in high-entropy alloys.
Qingqing Ding,Yin Zhang,Xiao Chen,Xiaoqian Fu,Dengke Chen,Sijing Chen,Lin Gu,Fei Wei,Hongbin Bei,Yanfei Gao,Yanfei Gao,Minru Wen,Jixue Li,Ze Zhang,Ting Zhu,Robert O. Ritchie,Robert O. Ritchie,Qian Yu +17 more
TL;DR: Atomic-resolution chemical mapping reveals deformation mechanisms in the CrFeCoNiPd alloy that are promoted by pronounced fluctuations in composition and an increase in stacking-fault energy, leading to higher yield strength without compromising strain hardening and tensile ductility.
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High-entropy ceramics
TL;DR: In this paper, the authors discuss the current state of the disordered ceramics field by examining the applications and the high-entropy features fuelling them, covering both theoretical predictions and experimental results.
References
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Accelerated exploration of multi-principal element alloys for structural applications
TL;DR: In this paper, a strategy for accelerated discovery and exploration of multi-principal element alloys was developed and used to identify new alloys within a design window of desired microstructures and properties.
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Hydrogen storage properties of multi-principal-component CoFeMnTixVyZrz alloys
Yih-Farn Kao,Swe-Kai Chen,Jen-Haur Sheu,Jiun-Ting Lin,Wei-En Lin,Jien-Wei Yeh,Su-Jien Lin,Tzung-Hsien Liou,Chia-Wen Wang +8 more
TL;DR: In this paper, a multi-principal-element CoFeMnTiVZr alloy system for the absorption and desorption of hydrogen is presented, and the effects of values x, y, and z on the hydrogen storage properties are elucidated in terms of lattice constant, element segregation, hydride formation enthalpies of the alloy components and hydrogen.
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Microstructure and mechanical properties of twinned Al0.5CrFeNiCo0.3C0.2 high entropy alloy processed by mechanical alloying and spark plasma sintering
TL;DR: In this article, a nonmetallic carbon element, non-equiatomic Al 0.5 CrFeNiCo 0.3 C 0.2 high entropy alloy has been successfully prepared by mechanical alloying and spark plasma sintering (SPS) process.
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A New Thermodynamic Parameter to Predict Formation of Solid Solution or Intermetallic Phases in High Entropy Alloys (Postprint)
Oleg N. Senkov,Daniel B. Miracle +1 more
TL;DR: In this article, a simple thermodynamic criterion is proposed to predict the presence or absence of equilibrium intermetallic phases in a high entropy alloy at a given temperature T. The criterion was verified using 45 currently available HEAs, for which equilibrium phases and respective annealing temperature are reported.
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Mixing enthalpy of liquid phase calculated by miedema’s scheme and approximated with sub-regular solution model for assessing forming ability of amorphous and glassy alloys
Akira Takeuchi,Akihisa Inoue +1 more
TL;DR: In this paper, the forming ability of amorphous and glassy alloys has been assessed with mixing enthalpy (Δ H mix ) of a liquid phase based on Miedema's scheme.