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Development of High-Entropy Shape-Memory Alloys: A Review

  • Guoqiang Fu
  • , Xinnuo Liu
  • , Xiaoyang Yi
  • , Shangzhou Zhang
  • , Xinjian Cao*
  • , Xianglong Meng
  • , Zhiyong Gao*
  • , Haizhen Wang*
  • *Corresponding author for this work
  • Yantai University
  • CAS - Lanzhou Institute of Chemical Physics
  • Harbin Institute of Technology

Research output: Contribution to journalReview articlepeer-review

Abstract

High-entropy shape-memory alloys (HESMAs) exhibit unique properties, including high yield strength, a wide temperature range of phase transformation, and excellent thermal cycling stability, among others. Hence, they have broad prospects for research and application. Currently, various new high-entropy shape-memory alloys have been developed based on TiNi, Fe-based, Ti-based, and NiMn-based alloys. This article focuses on summarizing and analyzing the research status of various types of high-entropy shape-memory alloys, including their microstructure characteristics, martensitic phase transformation, and functional properties. The advantages and disadvantages of high-entropy shape-memory alloys compared to traditional shape-memory alloys are briefly discussed. Finally, based on the analysis of existing problems, future research prospects are proposed, hoping to provide assistance for the development and application of high-entropy shape-memory alloys in the future.

Original languageEnglish
Article number1279
JournalMetals
Volume13
Issue number7
DOIs
StatePublished - Jul 2023
Externally publishedYes

Keywords

  • high entropy
  • martensitic transformation
  • microstructure
  • shape memory effect
  • shape-memory alloy
  • superelasticity

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