Microstructure and tensile properties of FeMnNiCuCoSnx high entropy alloys |
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| Affiliation: | 1. Institute of Machinery Manufacturing Technology, Chinese Academy of Engineering Physics, Mianyang, Sichuan 621900, PR China;2. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, PR China;1. State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China;2. School of Mechanical Engineering, Shanghai Dianji University, Shanghai 200245, China;3. School of Engineering, Liverpool John Moores University, Liverpool 611310, United Kingdom;1. Laboratory of Bulk Nanostructured Materials, Belgorod State University, Belgorod 308015, Russia;2. National Science Center “Kharkov Institute of Physics and Technology” NAS of Ukraine, Kharkov 61108, Ukraine;3. UES, Inc., 4401 Dayton-Xenia Rd., Dayton, OH 45432, USA;1. Thayer School of Engineering, Dartmouth College, 14 Engineering Drive, Hanover, NH 03755, USA;2. Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA |
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| Abstract: | High-entropy FeMnNiCuCoSnx (x denotes the atomic fraction of Sn) alloys with good plasticity have been developed. The systematical investigation demonstrates that the concentration of Sn element plays a significant role in the microstructure and tensile properties. As 0.03 < x < 0.05, the alloys exhibit high tensile strength and plasticity, and the maximum elongation strain and strength are 16.9% and 476.9 MPa, respectively, because of their single FCC solutions. While the concentration of Sn is higher than 0.05, an intermetallic compound (Cu5.6Sn) in the interdendritic regions forms, which degrades the ductility of alloys. |
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