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Home > Archive>Volume 50, Issue 8, 2021 >2783-2788. DOI:10.12442/j.issn.1002-185X.20200485
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Effect of Nb Addition on Microstructure and Mechanical Properties of Fe0.5MnNi1.5CrNb x High-Entropy Alloys
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1.College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;2.School of Mechanical Engineering, University of Adelaide, SA 5005, Australia

Fund Project:

Science and Technology Advancement Project in Jiangsu Province (BE2018753/KJ185629); National Natural Science Foundation of China (51571118, 51371098); 2020 Extracurricular Academic Research Fund for College Students of Nanjing University of Science and Technology

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    Abstract:

    Fe0.5MnNi1.5CrNbx (x=0, 0.05, 0.1, molar ratio) high-entropy alloys were prepared by vacuum induction melting. The effect of Nb content on the microstructure and mechanical properties of the new alloy was analyzed. The results show that the Nb-free alloy has a single-phase fcc structure, and its tensile strength and elongation to failure (i.e., ductility) are 519 MPa and 47%, respectively. With the addition of Nb (x=0.05), the (200) texture and Fe2Nb Laves phase appear. The ductility of alloy increases to 55%, while the tensile strength increases to 570 MPa. When the molar ratio of Nb increases to 0.1, the texture diminishes, whereas the volume fraction of the Fe2Nb phase is increased. The resultant tensile strength and ductility are 650 MPa and 45%, respectively.

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[Zhao Chenmeng, Wu Hao, Zhang Jifeng, Zhu Heguo, Xie Zonghan. Effect of Nb Addition on Microstructure and Mechanical Properties of Fe0.5MnNi1.5CrNb x High-Entropy Alloys[J]. Rare Metal Materials and Engineering,2021,50(8):2783~2788.]
DOI：10.12442/j. issn.1002-185X.20200485

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History
  • Received:July 08,2020
  • Revised:September 13,2020
  • Adopted:September 18,2020
  • Online: September 07,2021
  • Published: August 31,2021

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