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Advances in Materials Science and Engineering
Volume 2011, Article ID 485942, 7 pages
Research Article

Synthesis and Characterization of High-Entropy Alloy A l š¯‘‹ FeCoNiCuCr by Laser Cladding

1Key Laboratory for Advanced Materials Processing Technology Ministry of Education, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
2Laser Processing Research Centre, School of Mechanical, Aerospace and Civil Engineering, The University of Manchester, Manchester M13 9PL, UK

Received 31 August 2010; Accepted 22 December 2010

Academic Editor: J. Dutta Majumdar

Copyright © 2011 Xiaoyang Ye et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


High-entropy alloys have been recently found to have novel microstructures and unique properties. In this study, a novel A l š¯‘‹ FeCoNiCuCr high-entropy alloy was prepared by laser cladding. The microstructure, chemical composition, and constituent phases of the synthesized alloy were characterized by SEM, EDS, XRD, and TEM, respectively. High-temperature hardness was also evaluated. Experimental results demonstrate that the A l š¯‘‹ FeCoNiCuCr clad layer is composed of only BCC and FCC phases. The clad layers exhibit higher hardness at higher Al atomic content. The AlFeCoNiCuCr clad layer exhibits increased hardness at temperature between 400–700°C.