Crystallization kinetics in AlxCrCoFeNi (0 ≤ x ≤ 40) high-entropy alloys

Sharma, Akshay; Deshmukh, Sanket A.; Liaw, Peter K.; Balasubramanian, Ganesh

doi:10.1016/j.scriptamat.2017.07.024

Cited by 49 publications

(29 citation statements)

References 30 publications

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“…The nucleation type was the Al phase when x=10 and 20, while the amorphous phase when x≥30, respectively. This trend was consistent with the common neighbor analysis with lower Al contents [24].…”

Section: Calculationssupporting

confidence: 91%

“…Although the DFT has many simplifications of the Schrӧdinger equation, the computational process is still challenging due to the HEAs containing multiple principal components. Thus, hybrid Monte Carlo/molecular dynamics (MC/ MD) simulations, ab initio molecular dynamics (AIMD) simulations, special quasi-random structure (SQS) modeling, coherent potential approximation (CPA), even small sets of ordered structures (SSOS) calculations are used for the DFT calculation of HEAs [24,40,59,116,[129][130][131][132][133][134][135]. REVIEW .…”

Section: Dft Computationsmentioning

confidence: 99%

“…Sharma et al [24] investigated phase transformations (PTs) in Al x CrCoFeNi using classical MD simulations. The influences of cooling rates, temperature, and Al contents on PTs were investigated by the MD simulation and experimental method in Al x CrCoFeNi (Fig.…”

Section: Calculationsmentioning

confidence: 99%

“…According to the existing physical-metallurgy and phase diagrams, such multi-element alloys may produce many phases and intermetallic compounds, resulting in complex and brittle microstructures that are difficult to analyze and engineer, but probably have finite practical values [18]. Beyond expectations, experimental results indicate that the higher mixing entropy in these alloys enhances the formation of random solid-solution phases with simple structures, such as face-centered-cubic (FCC), body-centered-cubic (BCC), or hexagonal-closepacking (HCP) structures, and thus reduces the number of phases [19][20][21][22][23][24][25][26][27][28][29]. Since then, the new alloy-design strategy opens a huge, unexplored field of multi-component alloys.…”

Section: Introductionmentioning

confidence: 99%

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Science and technology in high-entropy alloys

2018

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As human improve their ability to fabricate materials, alloys have evolved from simple to complex compositions, accordingly improving functions and performances, promoting the advancements of human civilization. In recent years, high-entropy alloys (HEAs) have attracted tremendous attention in various fields. With multiple principal components, they inherently possess unique microstructures and many impressive properties, such as high strength and hardness, excellent corrosion resistance, thermal stability, fatigue, fracture, and irradiation resistance, in terms of which they overwhelm the traditional alloys. All these properties have endowed HEAs with many promising potential applications. An in-depth understanding of the essence of HEAs is important to further developing numerous HEAs with better properties and performance in the future. In this paper, we review the recent development of HEAs, and summarize their preparation methods, composition design, phase formation and microstructures, various properties, and modeling and simulation calculations. In addition, the future trends and prospects of HEAs are put forward.

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Section: Calculationssupporting

confidence: 91%

Section: Dft Computationsmentioning

confidence: 99%

Section: Calculationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Science and technology in high-entropy alloys

2018

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“…As the Al content reaches x ¼ 0.8, a BCC structure appears, which consisted of mixed FCC and BCC eutectic phases [13]. It is believed that excessive Al is capable of triggering diffusive transformations from a molten to a crystalline phase via an intermediate amorphous structure [14]. However, the basic understanding of the structural stability and transformation properties is still lacking, due to the complicated elemental diffusion and atomic-bonding environments [11,14].…”

Section: Introductionmentioning

confidence: 99%

Structural and bonding transformation of Al0.67CrCoCuFeNi high-entropy alloys during quenching

Zhang

Pan

Tang

et al. 2018

Journal of Alloys and Compounds

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Microstructures and Properties of High‐Entropy Materials: Modeling, Simulation, and Experiments

Fang

Liaw

2020

Adv Eng Mater

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The performances of high‐entropy materials (HEMs), including high‐entropy alloys, high‐entropy ceramics, and high‐entropy polymers, with unique characteristics (high mixing entropy, serious lattice distortion, and short‐range order) determined by experiments are out of the ordinary, such as the excellent mechanical properties. The important research methods on HEMs are briefly introduced from the physical modeling, multiscale simulation, and experiments at various scales. The microstructures (dislocation, twinning, grain boundary, and phase) and performances (mechanical property, physical property, chemical property, optical property, medical property, and irradiation property) are summarized. Future directions of research and development with a focus on modeling and simulation in HEMs are discussed. In the next, HEMs with the unique properties would be promising candidates for industrial applications beyond conventional alloys.

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Crystallization kinetics in AlxCrCoFeNi (0 ≤ x ≤ 40) high-entropy alloys

Cited by 49 publications

References 30 publications

Science and technology in high-entropy alloys

Science and technology in high-entropy alloys

Structural and bonding transformation of Al0.67CrCoCuFeNi high-entropy alloys during quenching

Microstructures and Properties of High‐Entropy Materials: Modeling, Simulation, and Experiments

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