Medium/high entropy alloys with heterogeneous structures for superior properties: A review

Yan Ma (Co-first Author), Wei Wang (Co-first Author), Jinyan He*, Yuntian Zhu, Xiaolei Wu, Fuping Yuan*

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

2 Citations (Scopus)
5 Downloads (CityUHK Scholars)

Abstract

Heterogeneous structures, such as gradient, lamellar, and dual-phase configurations, have been prevalent in nature for ages and have been harnessed in diverse applications to achieve exceptional properties in man-made engineering materials. These heterogeneous structures not only enhance the mechanical properties of the structured material but also exhibit immense potential in functional materials, enabling unprecedented functionalities. High entropy alloys (HEAs), a cutting-edge alloy design concept centered on multi-principal elements, offer a vast compositional landscape. The integration of HEA with heterogeneous structures further broadens the prospects for discovering new materials with remarkable attributes. This review delves into several types of heterogeneous structures within HEAs, highlighting their superior mechanical and functional properties, including strength, ductility, dynamic shear toughness, fracture toughness, fatigue properties, and magnetic capabilities. Additionally, it explores their deformation mechanisms and strain-hardening capabilities. This article provides a comprehensive overview of heterogeneous structured HEA for achieving enhanced mechanical and functional performance. © 2024 The Author(s).
Original languageEnglish
Article number100553
JournalMaterials Today Advances
Volume25
Online published28 Dec 2024
DOIs
Publication statusPublished - Mar 2025

Funding

This research was supported by the National Key R&D Program of China [grant number 2024YFA1208004], the Strategic Priority Research Program of the Chinese Academy of Sciences [XDB0510301], the National Natural Science Foundation of China [grant numbers 52192591 and 52071326], and the Hong Kong Research Grants Council [grant GRF 11214121]. Y.Z. thanks Hong Kong Institute for Advanced Study for supporting this work at City University of Hong Kong.

Research Keywords

  • Hetero-deformation induced hardening
  • Heterogeneous structure
  • High-entropy alloy
  • Magnet
  • Mechanical properties
  • Strain hardening

Publisher's Copyright Statement

  • This full text is made available under CC-BY-NC 4.0. https://creativecommons.org/licenses/by-nc/4.0/

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