J. Mater. Sci. Technol. ›› 2024, Vol. 180: 23-31.DOI: 10.1016/j.jmst.2023.10.003

• Correspondence • Previous Articles     Next Articles

Enhancing properties of high-entropy alloys via manipulation of local chemical ordering

Yihan Wang1, Meiyuan Jiao1, Yuan Wu, Xiongjun Liu, Hui Wang, Suihe Jiang, Xiaobin Zhang, Zhaoping Lu*   

  1. Beijing Advanced Innovation Center for Materials Genome Engineering, State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China
  • Revised:2023-10-14 Published:2024-05-01 Online:2024-04-25
  • Contact: *E-mail address: luzp@ustb.edu.cn (Z. Lu)
  • About author:1 These authors contributed equally to this work.

Abstract: It is gradually accepted that the presence of local chemical orderings (LCOs) is a common structural feature of high-entropy alloys (HEAs) due to their large chemical complexity and high configuration entropy. The formation and characterization of LCOs in HEAs, as well as the challenges regarding this topic were discussed in our previous viewpoint paper. In this short communication, we highlight the significant effects of LCOs on physical and mechanical properties. In addition, efforts on how to improve the properties via manipulation of these LCOs will be summarized and explored. Apparently, this paper attempts to understand the unique properties of HEAs from the standpoint of their intrinsic atomic-scale structural fingerprints, and ultimately to establish a link between their prominent properties and distinct structural characteristics.

Key words: High entropy alloys, Local chemical ordering, Mechanical properties