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Triple-Phase Eutectic High-Entropy Alloy: Al10Co18Cr18Fe18Nb10Ni26
Metallurgical and Materials Transactions A, 2021A triple-phase eutectic high-entropy alloy (TEHEA) Al10Co18Cr18Fe18Nb10Ni26 is designed and successfully prepared by electric arc melting. The alloy is proved to consist of disordered face-centered cubic (FCC) phase, ordered body centered cubic (B2) phase and Laves phase with hexagonal close-packed (HCP) structure.
Xi Jin +4 more
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CALPHAD aided eutectic high-entropy alloy design
Materials Letters, 2020Abstract A CALPHAD aided eutectic high-entropy alloy (EHEA) design method was proposed, in which series of pseudo-binary diagrams based on the eutectic constituent phases were calculated, and a pseudo-ternary phase diagram was established to further guide the alloy design.
Mingxu Wu +4 more
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Diffusion bonding of AlCoCrFeNi2.1 eutectic high entropy alloy to TiAl alloy
Journal of Materials Science & Technology, 2020Abstract High entropy alloys have special microstructure and remarkable properties. To explore their potential engineering application in high temperature structures, the microstructure evolution of bonding interface, the elemental diffusion behavior and mechanical property of the diffusion bonded joint between AlCoCrFeNi2.1 eutectic high entropy ...
Peng Li +4 more
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Dendritic Growth of Rapid-Solidified Eutectic High-Entropy Alloy
Materials Science Forum, 2021Mould casting and drop-tube techniques were used to solidify a AlCoCrFeNi2.1 eutectic high-entropy alloy under conditions of high cooling rate. The samples obtained from two different methods present the same phase constituent, FCC and B2 phases. During mould casting experiments the alloy almost solidified into the eutectic structure consisting of ...
Lei Gang Cao +3 more
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Boron microalloying for high-temperature eutectic high-entropy alloys
Acta MaterialiaYuhao Jia, Xiaoyu Bai, Linxiang Liu
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Design of a Seven-Component Eutectic High-Entropy Alloy
Metallurgical and Materials Transactions A, 2019A eutectic high-entropy alloy with seven components (Fe, Ni, Cr, V, Co, Mn, and Nb) was designed via the melt route guided by CALPHAD predictions. Configurational entropy estimated for the two-phase microstructure qualifies it to be referred to as a high-entropy alloy. When the Nb content exceeded 9.7 at.
M. R. Rahul, Gandham Phanikumar
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Accelerated Design of Eutectic High Entropy Alloys by ICME Approach
Metallurgical and Materials Transactions A, 2021Eutectic high entropy alloy with seven components is designed based on the integrated computational materials engineering (ICME) framework. The framework includes thermodynamic prediction using calculation of phase diagrams (CALPHAD), microstructure simulation using phase-field method, and experimental validation.
Naishalkumar Shah +2 more
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Designing eutectic high entropy alloys of CoCrFeNiNb x
Journal of Alloys and Compounds, 2016Abstract Based on surveying the existing binary phase diagrams with eutectic points, a strategy of designing eutectic high entropy alloys (EHEAs) with desired high strength and ductility is proposed. Based on the computer-aided thermodynamic calculations, the pseudo eutectic binary alloy system of CoCrFeNiNbx (x = 0.1, 0.25, 0.5 and 0.8) was designed.
Feng He +7 more
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Science China Technological Sciences, 2017
Eutectic and near-eutectic high entropy alloys (HEAs) have recently attracted a great deal of interest because of their promising properties, such as an excellent castability and unique combination of good ductility and high strength. However, in the absence of a phase diagram, it remains a non-trivial task to find a eutectic or near-eutectic ...
ZhaoYi Ding, QuanFeng He, Yong Yang
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Eutectic and near-eutectic high entropy alloys (HEAs) have recently attracted a great deal of interest because of their promising properties, such as an excellent castability and unique combination of good ductility and high strength. However, in the absence of a phase diagram, it remains a non-trivial task to find a eutectic or near-eutectic ...
ZhaoYi Ding, QuanFeng He, Yong Yang
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Seaweed eutectic-dendritic solidification pattern in a CoCrFeNiMnPd eutectic high-entropy alloy
Intermetallics, 2017Abstract A CoCrFeNiMnPd eutectic high-entropy alloy was designed and prepared. A unique eutectic-dendritic solidification pattern was observed in the as-cast alloy. Heretofore, this kind of pattern was rarely reported no matter in binary or multi-component alloys. Through a series of experimental characterization and theoretical analysis, it could be
Yiming Tan +3 more
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