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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Age hardening reaction of the Al0.3CrFe1.5MnNi0.5 high entropy alloy
L. C. Tsao,C.S. Chen,C.P. Chu +2 more
TL;DR: In this article, an Al 0.3 CrFe 1.5 MnNi 0.5 high entropy alloy was synthesized using a well-developed arc-melting and casting method, and the as-cast alloy ingot was heat treated for 8h at 650-750°C and then quenched in water to investigate the effects of age treatment on the microstructure and microhardness of the alloy.
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Nature of the interfaces between the constituent phases in the high entropy alloy CoCrCuFeNiAl.
Brian Welk,Robert E.A. Williams,Gopal B. Viswanathan,Mark A. Gibson,Peter K. Liaw,Hamish L. Fraser +5 more
TL;DR: The interfaces between the phase separated regions in the dendritic grains of laser-deposited samples of the high entropy alloy CoCrCuFeNiAl have been studied using aberration-corrected analytical (scanning) transmission electron microscopy (S)TEM and it was found that there is a transition region over which the chemical composition changes from the B2 to that of the bcc phase.
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Analysis of phase formation in multi-component alloys
TL;DR: In this paper, an attempt has been made to predict phase formation using a CALPHAD-based approach for a large number of compositions that are known to form FCC, BCC and a mixture of FCC and BCC phases.
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Microstructure and magnetic properties of mechanically alloyed FeSiBAlNi (Nb) high entropy alloys
TL;DR: In this paper, the effects of milling duration and composition on the microstructure and magnetic properties of equi-atomic FeSiBAlNi and FeSiAlNiNb high entropy alloys during mechanical alloying have been investigated using X-ray diffraction, differential scanning calorimetry, scanning electron microscopy, transmission electron microscope and alternating gradient magnetometry.