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High-Entropy Materials: Preparation, Properties and Applications

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Materials Physics".

Deadline for manuscript submissions: closed (20 November 2022) | Viewed by 1739

Special Issue Editor

School of Material Science and Engineer, Dalian University of Technology, Dalian 116024, China
Interests: high-entropy alloys; amorphous alloys; microstructure characterization; nano-crystalline materials; mechanical property; irradiation behavior; material pro-cessing; heat treatment

Special Issue Information

Dear Colleagues,

The scope of the Special Issue publish research related to the theoretical and experimental studies related to the high entropy alloys, high entropy ceramics, high entropy composites, etc. All kinds of functionality can be investigated, including mechanical, chemical, electronic, magnetic, and optical properties. Material characterization techniques such as electron microscopy, X-ray diffraction, calorimetry, nuclear microscopy and spectroscopy, laser technology, optical fibers, Rutherford backscattering, and neutron diffraction could be used to analyze the material property. The main goal is to promote the industrial application of high-entropy alloys, reduce the cost of high-entropy alloys, and provide new materials for aerospace, microelectronics and other fields.

Dr. Li Jiang
Guest Editor

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Keywords

  • high-entropy alloys
  • preparation
  • mechanical property
  • functionality
  • applications

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Published Papers (1 paper)

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Research

12 pages, 3419 KiB  
Article
Rapid Design, Microstructures, and Properties of Low-Cost Co-Free Al-Cr-Fe-Ni Eutectic Medium Entropy Alloys
by Jiongpei Yuan, Yujing Yang, Shougang Duan, Yong Dong, Chuanqiang Li and Zhengrong Zhang
Materials 2023, 16(1), 56; https://doi.org/10.3390/ma16010056 - 21 Dec 2022
Cited by 11 | Viewed by 1493
Abstract
In this study, we establish a mathematical rule for accelerating the prediction of low-cost Co-free AlCraFebNic FCC/B2-structured eutectic medium entropy alloys (EMEAs). The mathematical formulas are c ≥ 1.0, 4.38a + 4.28b + 3.97c ≈ 20.55, and c [...] Read more.
In this study, we establish a mathematical rule for accelerating the prediction of low-cost Co-free AlCraFebNic FCC/B2-structured eutectic medium entropy alloys (EMEAs). The mathematical formulas are c ≥ 1.0, 4.38a + 4.28b + 3.97c ≈ 20.55, and c − a ˃ 1.0. With this rule, we successfully predict the AlCr1.18FeNi2.8 and AlCrFe1.46Ni2.5 eutectic alloys and verify their eutectic morphology by experiments. Both the AlCr1.18FeNi2.8 and AlCrFe1.46Ni2.5 EHEAs exhibit excellent compressive mechanical properties, with yield stress higher than 500 MPa, compressive fracture strength higher than 2450 MPa, and fracture strain > 40%, which can be attributed to their unique lamellar microstructure. Moreover, both alloys exhibit good corrosion resistance in 3.5 wt.% NaCl solution. Among them, the AlCr1.18FeNi2.8 EHEA exhibits better corrosion resistance due to the higher content of the FCC phase. Full article
(This article belongs to the Special Issue High-Entropy Materials: Preparation, Properties and Applications)
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