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Journal articles on the topic 'Multicomponent high-entropy alloy'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Tun, Khin Sandar, and Manoj Gupta. "Microstructural Evolution in MgAlLiZnCaY and MgAlLiZnCaCu Multicomponent High Entropy Alloys." Materials Science Forum 928 (August 2018): 183–87. http://dx.doi.org/10.4028/www.scientific.net/msf.928.183.

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In this research study, two light weight multi-component high entropy alloys (HEAs) consisting of six constituent elements were synthesized. The high entropy alloy having a chemical composition of Mg35Al33Li15Zn7Ca5Y5(atomic pct.) had a density of 2.25 g/cm3, while the high entropy alloy having a composition of Mg35Al33Li15Zn7Ca5Cu5(atomic pct.) had a density of 2.27 g/cm3. The strategy of non-equiatomic composition, high entropy of mixing coupled with low density was applied in designing the alloy systems. Disintegrated melt deposition (DMD) technique was used to synthesize the materials and

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2

KASHKAROV, E. B., T. L. MURASHKINA, D. G. KROTKEVICH, M. KOPTSEV, and A. M. LIDER. "Microstructure and phase composition of multicomponent Nb–Ni–Ti–Zr–Co alloys." Izvestiya vysshikh uchebnykh zavedenii. Fizika 67, no. 1 (2024): 55–62. https://doi.org/10.17223/00213411/67/1/7.

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The microstructure, phase composition and hardness of equimolar high entropy and multicomponent alloys Nb-Ni-Ti-Zr-Co synthesized by arc melting are presented. The microstructure and phase composition of the alloys were analyzed by scanning electron microscopy and X-ray diffraction, respectively. It was found that the BCC-(Nb, Ni, Ti, Zr, Co) and the niobium-enriched BCC-Nb(Ni, Ti, Zr, Co) phases were formed in the equimolar high entropy Nb20Ni20Ti20Zr20Co20 alloy, while in addition to the above BCC phases, B 2-Ni(Ti, Zr), B 2-CoZr, and ZrNi phases are present in different ratios in the Nb45(N

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3

Kushnerov, O. I., and V. F. Bashev. "The effect of cooling rate on the magnetic properties of Cu-Fe-Ni multicomponent alloys with Al and Si additions." Journal of Physics and Electronics 26, no. 1 (2018): 39–44. http://dx.doi.org/10.15421/331806.

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The paper explores the structure and magnetic properties of multicomponent high-entropy Al-Cu-Fe-Ni-Si alloys in as-cast and splat-quenched state. This alloy system is characterized by the absence of expensive components, such as Co, V, Mo, Cr, usually used for the production of high-entropy alloys while its characteristics are not inferior to those of more expensive alloys. Components of the studied high-entropy alloys were selected taking into account both criteria for designing and estimating their phase composition, which are available in the literature and based on the calculations of the

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4

Sharma, Ashutosh. "High Entropy Alloy Coatings and Technology." Coatings 11, no. 4 (2021): 372. http://dx.doi.org/10.3390/coatings11040372.

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Recently, the materials research community has seen a great increase in the development of multicomponent alloys, known as high entropy alloys (HEAs) with extraordinary properties and applications. In surface protection and engineering, diverse applications of HEAs are also being counted to benefit from their attractive performances in various environments. Thermally sprayed HEA coatings have outperformed conventional coating materials and have accelerated further advancement in this field. Therefore, this review article overviews the initial developments and outcomes in the field of HEA coati

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Derimow, Nicholas, and Reza Abbaschian. "Liquid Phase Separation in High-Entropy Alloys—A Review." Entropy 20, no. 11 (2018): 890. http://dx.doi.org/10.3390/e20110890.

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It has been 14 years since the discovery of the high-entropy alloys (HEAs), an idea of alloying which has reinvigorated materials scientists to explore unconventional alloy compositions and multicomponent alloy systems. Many authors have referred to these alloys as multi-principal element alloys (MPEAs) or complex concentrated alloys (CCAs) in order to place less restrictions on what constitutes an HEA. Regardless of classification, the research is rooted in the exploration of structure-properties and processing relations in these multicomponent alloys with the aim to surpass the physical prop

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Oleszak, Dariusz, Anna Antolak-Dudka, and Tadeusz Kulik. "High entropy multicomponent WMoNbZrV alloy processed by mechanical alloying." Materials Letters 232 (December 2018): 160–62. http://dx.doi.org/10.1016/j.matlet.2018.08.060.

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Mudry, S. I., R. M. Bilyk, R. Ye Ovsianyk, Yu O. Kulyk, and T. M. Mika. "Structural Features of InPbGaSnCu Molten High Entropy Alloy." Фізика і хімія твердого тіла 20, no. 4 (2019): 432–36. http://dx.doi.org/10.15330/pcss.20.4.432-436.

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X-ray diffraction method has been carried out to study the structure in the equiatomic InPbGaSnCu high entropy alloy in liquid state. Structure factors and pair correlation functions have been analyzed and used to determine the main structure parameters. Existence of shoulder on right hand side of principal peak and its transformation was the main feature of structure factors. Comparison of structure functions and main parameters obtained from them for multicomponent alloy with ones for constituent elements shown that mixing process is related with formation of structural inhomogeneities in li

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8

Shelyagin, V. D., A. V. Bernatskyi, O. V. Siora, V. I. Bondareva, and M. P. Brodnikovskyi. "Structure of laser welded joints of multicomponent high-entropy alloy of Nb–Cr–Ti–Al–Zr system." Paton Welding Journal 2021, no. 6 (2021): 26–31. http://dx.doi.org/10.37434/tpwj2021.06.04.

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9

Girzhon, Vasyl', Vladyslav Yemelianchenko, and Oleksandr Smolyakov. "High entropy coating from AlCoCrCuFeNi alloy, obtained by laser alloying." Acta Metallurgica Slovaca 29, no. 1 (2023): 44–49. http://dx.doi.org/10.36547/ams.29.1.1710.

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The structural-phase state of the Al-Co-Cr-Cu-Fe-Ni system high-entropy alloy obtained by laser alloying of technically pure aluminium surface layers was investigated by XRD, EDX and metallographic analyses. It is shown that in the process of laser alloying the formation of an an ordered multicomponent substitution solid solution based on BCC lattice took place, which is typical for high-entropy alloys. The process of heterogeneous crystallization of high-entropy alloys AlCoCrCuFeNi and Al3CoCrCuFeNi was modeled taking into account cooling rates of the melt. It is established that the formatio

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10

Kushnerov, Oleksandr I., V. F. Bashev, and Serhii I. Ryabtsev. "Structure and Properties of Melt-Quenched Al<sub>4</sub>CoCrCuFeNi High-Entropy Alloy." Defect and Diffusion Forum 431 (February 6, 2024): 47–54. http://dx.doi.org/10.4028/p-4gvjbc.

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The structure and mechanical properties of a multicomponent high-entropy Al4CoCrCuFeNi alloy in the as-cast and melt-quenched states were investigated. The alloy composition was analyzed based on the literature criteria for predicting the phase formation in high-entropy alloys, which considered the entropy and enthalpy of mixing, valence electron concentration as well as the atomic size difference of the components. The alloy films were synthesized by quenching from the melt using a splat-quenching technique. The cooling rate of the films was estimated to be ~ 106 K/s based on the film thickne

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11

Mehta, Abhishek, and Yong Ho Sohn. "Fundamental Core Effects in Transition Metal High-Entropy Alloys: “High-Entropy” and “Sluggish Diffusion” Effects." Diffusion Foundations 29 (April 2021): 75–93. http://dx.doi.org/10.4028/www.scientific.net/df.29.75.

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High entropy alloys (HEAs) are equimolar multi-principal-element alloys (MPEAs) that are different from traditional solvent-based multicomponent alloys based on the concept of alloy design. Based on initial work by Yeh and co-workers, HEAs were postulated to exhibit four “core” effects: high entropy, sluggish diffusion, lattice distortion, and cocktail effect. Out of these four proposed core effects, “high entropy” and “sluggish diffusion” effects were most debated in the literature as these core effects directly affect the thermodynamic and kinetic understanding of HEAs. The initial work on H

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12

Yao, Yonggang, Zhennan Huang, Pengfei Xie, et al. "Carbothermal shock synthesis of high-entropy-alloy nanoparticles." Science 359, no. 6383 (2018): 1489–94. http://dx.doi.org/10.1126/science.aan5412.

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The controllable incorporation of multiple immiscible elements into a single nanoparticle merits untold scientific and technological potential, yet remains a challenge using conventional synthetic techniques. We present a general route for alloying up to eight dissimilar elements into single-phase solid-solution nanoparticles, referred to as high-entropy-alloy nanoparticles (HEA-NPs), by thermally shocking precursor metal salt mixtures loaded onto carbon supports [temperature ~2000 kelvin (K), 55-millisecond duration, rate of ~105 K per second]. We synthesized a wide range of multicomponent na

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13

Kushnerov, O. I., and V. F. Bashev. "The effect of cooling rate on structure and mechanical properties of Co-Cr-Cu-Fe-Ni-Sn high entropy alloys." Journal of Physics and Electronics 29, no. 1 (2021): 85–90. http://dx.doi.org/10.15421/332114.

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The paper examines the structure and mechanical properties of multicomponent high-entropy CoCrCuFeNiSnx alloys in as-cast and splat-quenched states. The compositions of investigated alloys is analyzed by using the criteria for predicting the phase composition of high-entropy alloys available in the literature, based both on calculations of the entropy and enthalpy of mixing and on an estimate of the difference between the atomic radii of the component. The alloy films is fabricated by the known technique of splat-quenching. A cooling rate estimated by a film thickness is ~ 106 K/s. The simulta

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14

Kong, Fanli, Akihisa Inoue, Fang Wang, and Chuntao Chang. "The Influence of Boron and Carbon Addition on the Glass Formation and Mechanical Properties of High Entropy (Fe, Co, Ni, Cr, Mo)-(B, C) Glassy Alloys." Coatings 14, no. 1 (2024): 118. http://dx.doi.org/10.3390/coatings14010118.

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Coatings made from metallic glasses are a promising solution for protecting surfaces of materials in various challenging environments. From an engineering perspective, glassy alloy coatings containing carbon are of greater importance compared to those without carbon but containing boron. Despite anticipating improved coating characteristics, there is no data on using high entropy glassy alloy as a coating material. In this paper, we investigated the influence of the simultaneous addition of boron and carbon elements on the glass-forming ability, thermal stability, crystallization behavior, yie

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15

Chang, Yin-Yu, and Cheng-Hsi Chung. "Tribological and Mechanical Properties of Multicomponent CrVTiNbZr(N) Coatings." Coatings 11, no. 1 (2021): 41. http://dx.doi.org/10.3390/coatings11010041.

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Multi-element material coating systems have received much attention for improving the mechanical performance in industry. However, they are still focused on ternary systems and seldom beyond quaternary ones. High entropy alloy (HEA) bulk material and thin films are systems that are each comprised of at least five principal metal elements in equally matched proportions, and some of them are found possessing much higher strength than traditional alloys. In this study, CrVTiNbZr high entropy alloy and nitrogen contained CrVTiNbZr(N) nitride coatings were synthesized using high ionization cathodic

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16

Szabó, Attila, Krisztián Bán, József Hlinka, Judit Pásztor, and Antal Lovas. "The formation and stability of bulk amorphous and high entropy alloys." Acta Materialia Transylvanica 4, no. 1 (2021): 51–57. http://dx.doi.org/10.33924/amt-2021-01-09.

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Abstract Two kinds of phase stabilization mechanism are discussed and compared: the first is characteristic of the formation of bulk amorphous alloys, in which the high supercooling ability of multicomponent liquids is responsible for the glassy phase stabilization. Here the hindered nucleation of crystalline phases is the center phenomenon. The origin of this hindering is the slowing atomic mobility in the supercooling melt. In contrast the melt supercooling is negligible during the high entropy alloy formation. It is believed that stability of the crystalline single fcc phase is the conseque

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17

Nakonechnyi, S. O., D. R. Dmytryshyn, V. О. Moroz, and A. I. Yurkova. "Multi-component NiFeCrWMo high entropy alloy, resulted from mechanical alloying." Metaloznavstvo ta obrobka metalìv 29, no. 2 (2023): 44–58. http://dx.doi.org/10.15407/mom2023.02.044.

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In this work, the evolution of the structure and phase composition of the multicomponent Ni-Fe-Cr-W-Mo system during mechanical alloying (MA) of an equiatomic mixture of elemental metal powders in a planetary mill is investigated. The formation of the phase composition and structure of the powdered equiatomic high-entropy NiFeCrWMo alloy at different stages of mechanical alloying was determined by scanning electron microscopy, X-ray diffraction and X-ray spectral analysis. It was found that during 10 hours of МА, a single-phase high-entropy alloy with the structure of a BCC solid solution in t

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18

Zhang, Kui Bao, Zheng Yi Fu, Jin Yong Zhang, et al. "Characterization of Nanocrystalline CoCrFeNiCuAl High-Entropy Alloy Powder Processed by Mechanical Alloying." Materials Science Forum 620-622 (April 2009): 383–86. http://dx.doi.org/10.4028/www.scientific.net/msf.620-622.383.

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The equiatomic multicomponent CoCrFeNiCuAl high-entropy alloy powder was synthesized by mechanical alloying. The effects of milling time and heat treatment on the structure and morphology of the ball milled alloy were investigated. Single BCC solid solution structure appears when the alloy is ball milled more than 30h. The 60h ball milled alloy powder shows a mean particle size of 3 μm, which is actually hard agglomerations of nanosized crystals with crystalline size less than 10nm. The 60h ball milled alloy exhibits good chemical homogeneity. The single BCC solid solution structure transforms

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19

Sivanantham, Arumugam, Hansung Lee, Sung Won Hwang, Byungmin Ahn, and In Sun Cho. "Preparation, electrical and electrochemical characterizations of CuCoNiFeMn high-entropy-alloy for overall water splitting at neutral-pH." Journal of Materials Chemistry A 9, no. 31 (2021): 16841–51. http://dx.doi.org/10.1039/d1ta02621f.

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High entropy alloys (HEA), multicomponent (5 or more) alloys with an equiatomic or a near-equiatomic composition, provide a unique platform with which to engineer surface composition and active sites for developing of efficient electrocatalysts.

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20

Padhamnath, Pradeep, Filip Kuśmierczyk, Mateusz Kopyściański, Łukasz Gondek, Piotr Migas, and Mirosław Karbowniczek. "Realization of a Novel FeSiAlCuSn Multicomponent Alloy and Characterization of Intermetallic Phases Formed at Different Temperatures During Cooling." Metals 15, no. 5 (2025): 479. https://doi.org/10.3390/met15050479.

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Ferrosilicon (FeSi) is a commercially important material with multiple uses in metallurgical processes. Recently, in an attempt to reduce the carbon impact of the FeSi production process, researchers have proposed using recycled Si recovered from electronic waste in the production of FeSi. However, Si recovered from electronic waste usually contains Al, Cu, and Sn as impurities. Hence, FeSi alloys produced with recycled Si from electronic waste may contain all these elements in varying proportions. Al, Cu, and Sn have been explored as alloying elements to produce alloys with Fe. FeSiAl alloys

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21

Stoian, Andrei Bogdan, Radu Nartita, Georgeta Totea, Daniela Ionita, and Cristian Burnei. "Complex Bioactive Chitosan–Bioglass Coatings on a New Advanced TiTaZrAg Medium–High-Entropy Alloy." Coatings 13, no. 5 (2023): 971. http://dx.doi.org/10.3390/coatings13050971.

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High-entropy alloys (HEAs), also known as multicomponent or multi-principal element alloys (MPEAs), differ from traditional alloys, which are usually based only on one principal element, in that they are usually fabricated from five or more elements in large percentages related to each other, in the range of 5%–35%. Despite the usually outstanding characteristics of HEAs, based on a properly selected design, many such alloys are coated with advanced composites after their elaboration to further improve their qualities. In this study, 73Ti-20Zr-5Ta-2Ag samples were covered with chitosan and a m

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22

Razumovsky, M. I., A. O. Rodin, and B. S. Bokstein. "Interdiffusion in refractory metal systems with a BCC lattice: titanium–tantalum and titanium–multicomponent (high-entropy) alloy." Izvestiya. Non-Ferrous Metallurgy 1, no. 1 (2023): 75–83. http://dx.doi.org/10.17073/0021-3438-2023-1-75-83.

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In this work, the interdiffusion features in multicomponent (high-entropy) alloys of refractory metals were studied. The following pairs were chosen as the diffusion study objects: titanium–equiatomic alloy (Hf–Nb–Ta–Ti–Zr–Mo) and titanium–tantalum for the sake of comparison. The article covers the issues of sample preparation, microstructure study, sample preparation methodology for diffusion research, and experimental results. Diffusion annealing was carried out for 12 h in a vacuum at a residual argon pressure of 6.65·10–3 Pa and a temperature of 1200 °С. Particular attention was paid to th

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23

Mukanov, S. K., P. A. Loginov, M. I. Petrzhik, and E. A. Levashov. "Electrospark modification of the surface of additive VT6 alloy with high-entropy and amorphous electrodes." Frontier materials & technologies, no. 1 (2024): 49–60. http://dx.doi.org/10.18323/2782-4039-2024-1-67-5.

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Unsatisfactory quality of the surface layer of additive products, in particular increased surface roughness, prevents the widespread use of electron beam powder bed fusion (EBPBF). Electrospark treatment (EST) is one of the methods for smoothing and hardening the surface layer. The work shows the possibility of modifying the surface of additive VT6 alloy samples by reactive EST with multicomponent electrodes. For this purpose, the authors used electrodes made of the Fe48Cr15Mo14Y2C15B6 bulk metallic glass forming alloy and the FeCoCrNi2 high-entropy alloy. Based on the results of scanning elec

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24

Oñate, Angelo, Juan Pablo Sanhueza, Gleydis Dueña, et al. "Sigma Phase Stabilization by Nb Doping in a New High-Entropy Alloy in the FeCrMnNiCu System: A Study of Phase Prediction and Nanomechanical Response." Metals 14, no. 1 (2024): 74. http://dx.doi.org/10.3390/met14010074.

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The development of high-entropy alloys has been hampered by the challenge of effectively and verifiably predicting phases using predictive methods for functional design. This study validates remarkable phase prediction capability in complex multicomponent alloys by microstructurally predicting two novel high-entropy alloys in the FCC + BCC and FCC + BCC + IM systems using a novel analytical method based on valence electron concentration (VEC). The results are compared with machine learning, CALPHAD, and experimental data. The key findings highlight the high predictive accuracy of the analytica

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25

Stasiak, Tomasz, Mourtada Aly Sow, Matthieu Touzin, Franck Béclin та Catherine Cordier. "Powder Metallurgy Processing and Characterization of the χ Phase Containing Multicomponent Al-Cr-Fe-Mn-Mo Alloy". Alloys 2, № 1 (2023): 44–54. http://dx.doi.org/10.3390/alloys2010003.

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High entropy alloys present many promising properties, such as high hardness or thermal stability, and can be candidates for many applications. Powder metallurgy techniques enable the production of bulk alloys with fine microstructures. This study aimed to investigate powder metallurgy preparation, i.e., mechanical alloying and sintering, non-equiatomic high entropy alloy from the Al-Cr-Fe-Mn-Mo system. The structural and microstructural investigations were performed on powders and the bulk sample. The indentation was carried out on the bulk sample. The mechanically alloyed powder consists of

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Bystrov, R. Yu, та D. A. Gerashchenkov. "Сoating of a multicomponent system Al–Cr–Ni–Co–Fe on a steel substrate obtained by laser". Voprosy Materialovedeniya, № 3(107) (4 грудня 2021): 109–17. http://dx.doi.org/10.22349/1994-6716-2021-107-3-109-117.

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In recent years, the unique physical and mechanical properties of high-entropy alloys (HEAs) have been the subject of increased attention of researchers. The study of the thermodynamic characteristics of such materials may be of interest for formulating the principles of the formation of structures with the required functional characteristics. Since the processes of structure and phase formation, as well as the diffusion mobility of atoms, the mechanism for the formation of mechanical properties and thermal stability differ significantly from similar processes in traditional alloys, HEAs are s

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27

Qin, Qing-dong, Jin-bo Qu, Yong-e. Hu, Yu-jiao Wu, and Xiang-dong Su. "Microstructural characterization and oxidation resistance of multicomponent equiatomic CoCrCuFeNi–TiO high-entropy alloy." International Journal of Minerals, Metallurgy, and Materials 25, no. 11 (2018): 1286–93. http://dx.doi.org/10.1007/s12613-018-1681-9.

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Yang, Hung-Hua, Wen-Ta Tsai, Jui-Chao Kuo, and Chih-Chao Yang. "Solid/liquid interaction between a multicomponent FeCrNiCoMnAl high entropy alloy and molten aluminum." Journal of Alloys and Compounds 509, no. 32 (2011): 8176–82. http://dx.doi.org/10.1016/j.jallcom.2011.05.104.

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29

Vishwanadh, B., N. Sarkar, S. Gangil, et al. "Synthesis and microstructural characterization of a novel multicomponent equiatomic ZrNbAlTiV high entropy alloy." Scripta Materialia 124 (November 2016): 146–50. http://dx.doi.org/10.1016/j.scriptamat.2016.07.018.

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Adeyemi, Gbenga J., Claire Utton, Yunus Azakli, and Russell Goodall. "Casting Homogeneity of Scaled-Up Multiprincipal Component Alloys." Journal of Manufacturing and Materials Processing 9, no. 2 (2025): 41. https://doi.org/10.3390/jmmp9020041.

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High-entropy and multicomponent alloys are believed to offer opportunities for improved properties and are currently of great interest to the research community. Studies on these materials are largely conducted on small samples, but, for many practical applications, larger-scale processing would be needed. The processing of metallic parts of high dimensionality conventionally begins with casting, but an increase in the scale of the melt increases the potential for effects dependent on segregation, diffusion and thermal transport. The objective here is to determine the effect of scale-up on the

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Kadyrmetov, Anvar, Dmitri Popov, and Yevgeny Snyatkov. "Investigation of a multicomponent FeCoCrAlTiCuMo alloy coating applied by a combined process based on atmospheric plasma metallization." MATEC Web of Conferences 329 (2020): 02005. http://dx.doi.org/10.1051/matecconf/202032902005.

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A brief analysis of the most common methods for producing multicomponent alloys, including high-entropy alloys (HES), is presented in terms of their use as an alternative to coatings made of traditional structural metal materials. Preliminary studies of the microstructure and phase composition of the coating obtained by plasma deposition of FeCoCrAlTiCuMo powder in the equiatomic ratio of components are presented . The results of the research showed the possibility of obtaining a multicomponent single-phase solid solution by plasma sputtering and indicated the feasibility of its further study.

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Nonato, Raphael Basilio Pires, Thomaz Augusto Guisard Restivo, and José Carlos Machado Junior. "Optimization of density and cost in the prediction of solid solution formation of multicomponent metal alloys." OBSERVATÓRIO DE LA ECONOMÍA LATINOAMERICANA 22, no. 10 (2024): e7087. http://dx.doi.org/10.55905/oelv22n10-068.

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Multicomponent alloys or high-entropy alloys (HEAs) are the most recent breakthroughs in the metal alloying area. Their unique possibilities in mechanical properties and their vast universe of combinations turn them into a highly active research area. The properties of HEAs depend on the solid solution formation, which can be predicted by calculation. Therefore, we present a method to simulate discrete compositions of the alloy elements in the software MD 2.0, created to calculate four parameters and provide their associated statuses to predict the solid solution formation in multicomponent al

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33

Kushnerov, O. I., V. F. Bashev, and S. I. Ryabtsev. "The influence of cooling rate on the structure and mechanical properties of Al4CoCrCuFeNi multicomponent alloy." Journal of Physics and Electronics 31, no. 2 (2023): 73–78. http://dx.doi.org/10.15421/332323.

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The present study focused on examining the composition, structure, and mechanical properties of an Al4CoCrCuFeNi multicomponent high-entropy alloy. Two states of the alloy, namely as-cast and melt-quenched, were investigated. The composition of the alloy was determined based on established criteria found in literature, which consider factors such as entropy, enthalpy of mixing, valence electron concentration, and atomic size difference of the components. To synthesize the alloy films, a splat-quenching technique was employed, where the films were rapidly cooled from the molten state. The estim

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Leong, Zhaoyuan, Yuhe Huang, Maximillian Bloomfield, et al. "Refining As-Cast Structures of Novel SixTiVCrZr High-Entropy Alloys Using Estimated Effective Solidification Temperature Obtained Using Chvorinov’s Rule." Metals 10, no. 3 (2020): 317. http://dx.doi.org/10.3390/met10030317.

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High-entropy alloys (HEAs), i.e., multicomponent alloys where (typically five or more) elements are combined in equal, or roughly equal, quantities, are of great current interest, due to their formation of single, simple structured phases, and the unusual properties they can potentially exhibit. Phase presence may be predicted using semi-empirical methods, but deviations from predictions may be seen during the course of alloy synthesis, with the formation of unexpected phases. The generation of such phases may be controlled with knowledge of the effective solidification temperature; in this fu

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Li, Jia, QiHong Fang, Bin Liu, YouWen Liu, and Yong Liu. "Atomic-scale analysis of nanoindentation behavior of high-entropy alloy." Journal of Micromechanics and Molecular Physics 01, no. 01 (2016): 1650001. http://dx.doi.org/10.1142/s2424913016500016.

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Using molecular dynamics simulations, we study the elastic and plastic deformations of indentation in FeCrCuAlNi high-entropy alloy (HEA). The indentation tests are carried out using spherical rigid indenter to investigate the effects of high-entropy and severe lattice distortion in terms of shear strain, indentation force, surface morphology, defect structure, dislocation evolution and radial distribution function on the deformation processes. It can be found that when the indentation depth increases, the shear stress requires for the occurrence of the contact area between the indenter and th

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Ivanová, S., J. Bárta, and M. Pazderová. "Electrodeposition of multicomponent Co–Cr–Fe–Mn–Ni alloy." Koroze a ochrana materialu 61, no. 2 (2017): 54–58. http://dx.doi.org/10.1515/kom-2017-0006.

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Abstract This work is focused on the initial realization of a multi-component coating deposition from the aqueous solution. The Coating composed of the elements Co-Cr-Fe-Mn-Ni was prepared by electroplating process. The chosen substrate was copper. The purpose of the work was to apply the high entropy alloy, which is defined as alloy with structure of a solid solution containing five or more elements in an approximately equal atomic ratio. The use of electrodeposition in this area is rare. The conditions of the plating process, the percentage of the metal ions and cohesion of the layers were s

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Samal, Sumanta, Sutanuka Mohanty, Ajit Kumar Misra, Krishanu Biswas, and B. Govind. "Mechanical Behavior of Novel Suction Cast Ti-Cu-Fe-Co-Ni High Entropy Alloys." Materials Science Forum 790-791 (May 2014): 503–8. http://dx.doi.org/10.4028/www.scientific.net/msf.790-791.503.

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The present investigation reports mechanical properties of novel multicomponent TixCuyFe20Co20Ni20 high entropy alloys (HEAs) with different alloy chemistry (x/y = 1/3, 3/7, 3/5, 9/11, 1, 11/9 and 3/2). The alloy cylinders were prepared by vacuum arc melting-cum-suction casting route. The detailed electron microscopic observations reveal the presence of three different solid solution phases; FCC (a1) phase, FCC (a2) phase and BCC (b) phase for all the investigated alloys, whereas ultrafine eutectic between FCC (a1) phase, and Ti2 (Co, Ni) - type Laves phase has been observed for the HEAs with

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Gorsse, Stéphane, and Oleg Senkov. "About the Reliability of CALPHAD Predictions in Multicomponent Systems." Entropy 20, no. 12 (2018): 899. http://dx.doi.org/10.3390/e20120899.

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This study examines one of the limitations of CALPHAD databases when applied to high entropy alloys and complex concentrated alloys. We estimate the level of the thermodynamic description, which is still sufficient to correctly predict thermodynamic properties of quaternary alloy systems, by comparing the results of CALPHAD calculations where quaternary phase space is extrapolated from binary descriptions to those resulting from complete binary and ternary interaction descriptions. Our analysis has shown that the thermodynamic properties of a quaternary alloy can be correctly predicted by dire

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Fan, Pengfei, Nirmal Kumar Katiyar, Xiaowang Zhou, and Saurav Goel. "Uniaxial pulling and nano-scratching of a newly synthesized high entropy alloy." APL Materials 10, no. 11 (2022): 111118. http://dx.doi.org/10.1063/5.0128135.

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Multicomponent alloys possessing nanocrystalline structure, often alluded to as Cantor alloys or high entropy alloys (HEAs), continue to attract the great attention of the research community. It has been suggested that about 64 elements in the periodic table can be mixed in various compositions to synthesize as many as ∼108 different types of HEA alloys. Nanomechanics of HEAs combining experimental and atomic simulations are rather scarce in the literature, which was a major motivation behind this work. In this spirit, a novel high-entropy alloy (Ni25Cu18.75Fe25Co25Al6.25) was synthesized usin

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Fernández-Caballero, Antonio, Mark Fedorov, Jan Wróbel, Paul Mummery, and Duc Nguyen-Manh. "Configurational Entropy in Multicomponent Alloys: Matrix Formulation from Ab Initio Based Hamiltonian and Application to the FCC Cr-Fe-Mn-Ni System." Entropy 21, no. 1 (2019): 68. http://dx.doi.org/10.3390/e21010068.

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Configuration entropy is believed to stabilize disordered solid solution phases in multicomponent systems at elevated temperatures over intermetallic compounds by lowering the Gibbs free energy. Traditionally, the increment of configuration entropy with temperature was computed by time-consuming thermodynamic integration methods. In this work, a new formalism based on a hybrid combination of the Cluster Expansion (CE) Hamiltonian and Monte Carlo simulations is developed to predict the configuration entropy as a function of temperature from multi-body cluster probability in a multi-component sy

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Lofaj, František, Lenka Kvetková, Tomáš Roch, et al. "Reactive HiTUS TiNbVTaZrHf-Nx Coatings: Structure, Composition and Mechanical Properties." Materials 16, no. 2 (2023): 563. http://dx.doi.org/10.3390/ma16020563.

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High entropy metal sub-lattice stabilized nitride coatings based on multicomponent refractory transition metals (TM = Ti, Nb, V, Ta, Zr, Hf) are promising candidates for extreme conditions due to their high thermal, mechanical, and corrosion properties. The aims of the current work included the investigations of the possibilities of the novel High Target Utilization Sputtering (HiTUS) technique applied to reactive sputtering of TiNbVTaZrHf–xN coatings from the viewpoints of hysteresis behavior during reactive sputtering as well as the structure, composition, stoichiometry, and mechanical prope

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Lee, Kevin X., Prabhakar Singh, Boxun Hu, Pawan Dubey, and Seraphim Belko. "Development of High-Entropy Alloy (HEA) Anode for Carbon-Free and Electrochemically-Stable Operation of SOFC on Hydrocarbon Fuels." ECS Transactions 111, no. 6 (2023): 595–608. http://dx.doi.org/10.1149/11106.0595ecst.

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High-entropy alloy (HEA) anode, consisting of multicomponent alloy and gadolinium-doped ceria (GDC) powders, were synthesized and evaluated for ethanol steam reforming under SOFC operating conditions using a fixed-bed reactor as well as electrochemical performance using a button cell test configuration. Both bench-top and cell tests were conducted at 700 °C with a steam-to-carbon (S/C) ratio of 2. While Ni anode showed filamentary carbon formation, and performance degradation with time, HEA/GDC catalyst showed stable performance without carbon deposition. As an anode, HEA/GDC demonstrated high

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Kushnerov, Oleksandr I., and Valerii F. Bashev. "Structure and Physical Properties of Cast and Splat-Quenched CoCr0.8Cu0.64FeNi High Entropy Alloy." 3, no. 3 (September 28, 2021): 43–48. http://dx.doi.org/10.26565/2312-4334-2021-3-06.

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The article investigates the structure and physical properties of the multicomponent high-entropy alloy CoCr0.8Cu0.64FeNi in the cast and quenched state. The composition of the alloy under study is analyzed using the criteria available in the literature for predicting the phase composition of high-entropy alloys. These parameters are based on calculations of the entropy and enthalpy of mixing and also include the concentration of valence electrons, the thermodynamic parameter Ω, which takes into account the melting point, entropy of mixing, and enthalpy of mixing. Another important parameter i

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Kitagawa, Jiro, Shusuke Hamamoto, and Naoki Ishizu. "Cutting Edge of High-Entropy Alloy Superconductors from the Perspective of Materials Research." Metals 10, no. 8 (2020): 1078. http://dx.doi.org/10.3390/met10081078.

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High-entropy alloys (HEAs) are a new class of materials which are being energetically studied around the world. HEAs are characterized by a multicomponent alloy in which five or more elements randomly occupy a crystallographic site. The conventional HEA concept has developed into simple crystal structures such as face-centered-cubic (fcc), body-centered-cubic (bcc) and hexagonal-closed packing (hcp) structures. The highly atomic-disordered state produces many superior mechanical or thermal properties. Superconductivity has been one of the topics of focus in the field of HEAs since the discover

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Wu, S. W., T. Yang, B. X. Cao, et al. "Multicomponent Ni-rich high-entropy alloy toughened with irregular-shaped precipitates and serrated grain boundaries." Scripta Materialia 204 (November 2021): 114066. http://dx.doi.org/10.1016/j.scriptamat.2021.114066.

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Mitrica, Dumitru, Ioana Cristina Badea, Mihai Tudor Olaru, et al. "Modeling and Experimental Results of Selected Lightweight Complex Concentrated Alloys, before and after Heat Treatment." Materials 13, no. 19 (2020): 4330. http://dx.doi.org/10.3390/ma13194330.

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Lightweight complex concentrated alloys (LWCCA), composed of elements with low density, have become a great area of interest due to the high demand in a large number of applications. Previous research on LWCCAs was focused on high entropy multicomponent alloy systems that provide low density and high capability of solid solution formation. Present research introduces two alloy systems (Al-Cu-Si-Zn-Mg and Al-Mn-Zn-Mg-Si) that contain readily available and inexpensive starting materials and have potential for solid solution formation structures. For the selection of appropriate compositions, aut

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Gurtova, Darya Yu, Marina Yu Panchenko, Evgeny V. Melnikov, Denis O. Astapov, and Elena G. Astafurova. "The influence of grain size on hydrogen embrittlement of a multicomponent (FeCrNiMnCo)99N1 alloy." Frontier Materials & Technologies, no. 3 (September 30, 2024): 41–51. http://dx.doi.org/10.18323/2782-4039-2024-3-69-4.

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The problem of hydrogen embrittlement remains relevant in many areas, so the FeCrNiMnCo alloy (Cantor alloy) generates increased interest among researchers as one of the materials least exposed to the negative effect of hydrogen. Nevertheless, the issue of the influence of microstructure parameters on hydrogen embrittlement of the Cantor alloy and multicomponent alloys of the FeCrNiMnCo system in general remains understudied. This work studies the influence of grain size on the susceptibility of a nitrogen-doped high-entropy Cantor alloy to hydrogen embrittlement. For this purpose, states with

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Polonskyy, V. A., O. I. Kushnerov, V. F. Bashev, and S. I. Ryabtsev. "The influence of the cooling rate on the structure and corrosion properties of the multicomponent high-entropy alloy CoCrFeMnNiBe." Physics and Chemistry of Solid State 25, no. 3 (2024): 506–12. http://dx.doi.org/10.15330/pcss.25.3.506-512.

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Samples of the multicomponent high-entropy alloy CoCrFeMnNiBe were obtained by the methods of casting and melt-quenching, and their phase composition and electrochemical behavior were investigated. With the help of X-ray phase analysis, it was established that the studied alloy in the as-cast state has a multiphase structure, in which there are phases with lattices of the FCC, BCC, and BeNi(Co) intermetallics (structural type B2). Quenching from the melt leads to a significant decrease in the BCC phase content. The values of stationary potentials and areas of electrochemical stability of cast

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Akinwekomi, Akeem Damilola, and Farid Akhtar. "Bibliometric Mapping of Literature on High-Entropy/Multicomponent Alloys and Systematic Review of Emerging Applications." Entropy 24, no. 3 (2022): 329. http://dx.doi.org/10.3390/e24030329.

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High-entropy/multicomponent alloy (HEA/MCA) has received significant research attention in the last decade. There is a dearth of data-driven works dedicated to assessing and visualizing the HEA/MCA literature from a global perspective. To this end, we present the first bibliometric literature analysis of more than 3500 HEA/MCA articles, published between 2004 and 2021, in the Scopus database. We identify the most prolific authors, their collaborators, institutions, and most prominent research outlet. Co-occurrence networks of keywords are mapped and analyzed. A steep rise in research outputs i

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Ivanov, Yurii F., Yuriy Kh Akhmadeev, Olga V. Krysina, et al. "Structure and Properties of Cermet Coatings Produced by Vacuum-Arc Evaporation of a High-Entropy Alloy." Coatings 13, no. 8 (2023): 1381. http://dx.doi.org/10.3390/coatings13081381.

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Multilayer cermet coatings based on a TiNbZrTaHf high-entropy alloy were produced on solid substrates by plasma-assisted vacuum-arc deposition. The assisting multicomponent metal-gas plasma was generated by evaporating TiNbZrTaHf cathodes in a gas mixture of nitrogen and argon. It was found that the coatings were nanocrystalline in structure (with nanocrystal sizes ranging from 2.5 to 4 nm). The metallic layer had a body-centered cubic lattice (a = 0.33396 nm), and the ceramic layer had a face-centered cubic lattice (a = 0.44465 nm). Transition layers formed between the substrate and the metal

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